Thursday

April 17, 2014

April 17, 2014

Number of results: 15,604

**science**

a particle is moving with a velocity of 5m/s .after 5sec it is found to be moving with velocity of 12 m/s in a direction perpendicular to the original direction.during these 5sec find 1.change in speed, 2.change in velocity and magnitude of change in velocity , 3.average ...
*Sunday, July 1, 2012 at 5:05am by jo147*

**physics**

the change of velocity of an automobile during a 5.0-s period is 20m/s in the due easterly direction. What is the magnitude and direction of its average acceleration
*Sunday, October 24, 2010 at 6:57pm by Kevin Chen*

**physics**

Three charges are fixed to an x, y coordinate system. A charge of +12 µC is on the y axis at y = +3.0 m. A charge of -14 µC is at the origin. Lastly, a charge of +50 µC is on the x axis at x = +3.0 m. Determine the magnitude and direction of the net ...
*Tuesday, January 23, 2007 at 5:02pm by Ann*

**physics**

Two ropes pull on a ring. One exerts a 63 N force at 30.0°, the other a 63 N force at 60.0° (a) What is the net force on the ring? Magnitude ____ N Direction ____ ° (b) What are the magnitude and direction of the force that would cause the ring to be in equilibrium?
*Tuesday, February 11, 2014 at 9:33am by Khadija*

**physics**

The earth orbits the sun once a year (3.16 107 s) in a nearly circular orbit radius 1.50 1011 m. With respect to the sun, determine the following. (a) the angular speed of the earth (b) the tangential speed of the earth (c) the magnitude and direction of the earth's ...
*Friday, November 19, 2010 at 4:37pm by john*

**Physics**

A proton, moving in negative y-direction in a magnetic field , experiences a force of magnitude F, acting in the negative x direction. a) What is the direction of the magnetic field producing force? b) Does your answer change if the word proton is replaced by electron? I get a...
*Tuesday, October 25, 2011 at 8:27pm by Jessica*

**Physics**

Two charges are placed on the x axis. One of the charges (q1 = +9.3 µC) is at x1 = +3.4 cm and the other (q2 = -20 µC) is at x2 = +8.9 cm. (a) Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the direction along the x-...
*Monday, January 28, 2013 at 1:36am by Jasmine*

**Physics **

A billiard ball with mass 0.210 kg has a speed of 5.2 m/s and collides completely inelastically with another ball of the same size and mass. I understood the first part of the problem I just need help solving the second part. Another billiard ball traveling at 6.25 m/s ...
*Thursday, November 14, 2013 at 6:24pm by Leslie*

**physics**

Hello jai. (lol we're using the same name) :p Anyway, I think the statement is wrong that it forgot to mention the direction where the car travels. Velocity is equal to displacement over time, which is a vector quantity, thus it shall be stated using magnitude and direction. ...
*Tuesday, December 4, 2012 at 9:53pm by Jai*

**Physics**

There are two forces on the 2.36 kg box in the overhead view of Fig. 5-31 but only one is shown. For F1 = 18.6 N, a = 11.4 m/s2, and θ = 26.7°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative...
*Wednesday, September 28, 2011 at 4:28pm by Anonymous*

**Physics**

There are two forces on the 2.36 kg box in the overhead view of Fig. 5-31 but only one is shown. For F1 = 18.6 N, a = 11.4 m/s2, and θ = 26.7°, find the second force (a) in unit-vector notation and as (b) a magnitude and (c) a direction. (State the direction as a negative...
*Wednesday, September 28, 2011 at 5:10pm by Anonymous*

**physics**

a ball is thrown up with an initial velocity 20m/s. using g=10m/s2, a) what's the maximum height it can reach. b) what is the magnitude and direction of the ball's velocity 1 second after it is thrown. c) what is the magnitude and direction of the ball's velocity 3 seconds ...
*Monday, September 12, 2011 at 1:33pm by jennifer*

**physics**

(1) Resolve travel segments into north and east components (2) Perform a vector addition of the north and east components separately. (3) With the east and north components of the sum vector, N and E, compute the magnitude and direction Magnitude = sqrt(N^2 + E^2) Direction (N...
*Thursday, January 17, 2013 at 12:03am by drwls*

**Physics**

The flywheel of a steam engine runs with a constant angular speed of 321 rev/min (in the counterclockwise direction). When steam is shut off, the friction of the bearings stops the wheel in 1.9 h. (a) What is the constant angular acceleration, in revolutions per minute-squared...
*Tuesday, July 27, 2010 at 11:54am by Anna*

**Physics**

The four wires in the figure are tilted at 20 with respect to the field direction. Each carries 4.5 and is 0.35 long. What is the magnitude and direction of the force on each wire?
*Monday, March 7, 2011 at 9:01am by Bob*

**physics (vector)**

Let the direction of the 1 n vector be up (+y direction). The components of the resultant are: 1 n: 1 j (j is a unit vector in +y direction) 2 n: -1 j + sqrt3 i (i is a unit vectyor in +x direction) 3 n: -1.5 j -(3/2)sqrt3 i vector sum: -1.5 j + -(1/2)sqrt3 i magnitude = sqrt[...
*Monday, June 6, 2011 at 11:46pm by drwls*

**Physics**

A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.135 m). The charges on the circle are -3.20 µC at the position due north and +5.00 µC at the position due east. What is the magnitude and ...
*Wednesday, August 29, 2007 at 10:15pm by Mary*

**Physics**

A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.135 m). The charges on the circle are -3.20 µC at the position due north and +5.00 µC at the position due east. What is the magnitude and ...
*Saturday, September 1, 2007 at 9:42am by Mary*

**physics**

Find the magnitude and direction of a)the resultant b)the equilibrant of two forces 10N acting in the direction N030'E and 15N acting in the eastern direction if boths forces act at a point. Please solve nd give the details especially the B parts of the question.
*Thursday, March 31, 2011 at 7:25am by pete onoriode*

**Physics**

a. tanA1 = Vy/Vx = 120/100 = 1.20. A1 = 50.2o = Direction. Magnitude = Vx/cosA1=100/cos50.2 =156.2 m/s. tanA2 = 142/80 = 1.775. A2 = 60.6o = Direction. Magnitude = 80/cos60.6 = 163 m/s. 60.6 - 50.2 = 10.4o = The change in direction. b. 163 - 156 = 7 m/s. c. a(x) = (80-100)/20...
*Wednesday, January 23, 2013 at 6:17pm by Henry*

**physics**

A duck has a mass of 2.9 kg. As the duck paddles, a force of 0.07 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.21 N in a direction of 60° south of east. When these forces begin to act, the velocity of the duck is 0.12 m/s in a...
*Wednesday, October 13, 2010 at 6:20pm by Sean*

**cal3 please help not too hard of a problem**

as noted at math dot stackechange, the rate of change in a function f in the direction of the unit vector η is ∇f⋅η (This is simply the chain rule.). This quantity reaches its maximum when η shares the same direction as ∇f (to maximize the ...
*Tuesday, February 28, 2012 at 5:02pm by Steve*

**Physics **

a) You have two forces, 105.5 N and 61.5 N. What is the magnitude of their resultant if the first acts upward and the second acts downward? Answer in units of N. b) What is the direction of the resultant? c) What is the magnitude of their resultant if they both act downward? ...
*Sunday, October 14, 2012 at 5:54pm by Jessica*

**Math**

1. A triangular prism has vertices at A(2, 0, 0), B(2, 1, 3), C(2, 2, 0), D(0, 0, 0), E(0, 1, 3), and F(0, 2, 0). Which image point has the coordinates (1, 4, 3) after a translation using the vector 1, 2, 3? 2. What point represents a reflection of B over the xy-plane? B'(?) 3...
*Wednesday, February 20, 2013 at 4:24pm by Becca*

**Math**

1. A triangular prism has vertices at A(2, 0, 0), B(2, 1, 3), C(2, 2, 0), D(0, 0, 0), E(0, 1, 3), and F(0, 2, 0). Which image point has the coordinates (1, 4, 3) after a translation using the vector 1, 2, 3? 2. What point represents a reflection of B over the xy-plane? B'(?) 3...
*Wednesday, February 20, 2013 at 4:23pm by Becca*

**Calculus**

1. A triangular prism has vertices at A(2, 0, 0), B(2, 1, 3), C(2, 2, 0), D(0, 0, 0), E(0, 1, 3), and F(0, 2, 0). Which image point has the coordinates (1, 4, 3) after a translation using the vector 1, 2, 3? 2. What point represents a reflection of B over the xy-plane? B'(?) 3...
*Wednesday, February 20, 2013 at 4:24pm by Becca*

**Physics**

An upward force of 35 N is applied via a string to lift a ball with a mass of 2.1 kg. (a) What is the net force acting upon the ball? magnitude 1 N direction 2 ---Select--- upward downward (b) What is the acceleration of the ball? magnitude 3 m/s2 direction 4 ---Select--- ...
*Monday, February 20, 2012 at 10:24pm by Mina*

**Pre-calculus**

1. A triangular prism has vertices at A(2, 0, 0), B(2, 1, 3), C(2, 2, 0), D(0, 0, 0), E(0, 1, 3), and F(0, 2, 0). Which image point has the coordinates (1, 4, 3) after a translation using the vector 1, 2, 3? 2. What point represents a reflection of B over the xy-plane? B'(?) 3...
*Wednesday, February 20, 2013 at 4:23pm by Becca*

**Science**

a 51.0 kg uniform square sign, of edge L = 2.00 m, is hung from a horizontal rod of length dh = 3.00 m and negligible mass. A cable is attached to the end of the rod and to a point on the wall at distance dv = 4.00 m above the point where the rod is hinged to the wall. (a) ...
*Saturday, December 13, 2008 at 5:22pm by Phillipe*

**physics**

An object with a charge of -4.5 micro C and a mass of 1.1×10−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. A) Find the magnitude of the electric field. B)Find the direction of the electric field. upward ...
*Friday, January 27, 2012 at 1:44pm by jazz*

**Physics**

21) A 46 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of – 1.2 m /s. Her hands are in contact with the wall for 0.8 s. Ignore friction and wind resistance • Find the magnitude and direction of the ...
*Tuesday, December 4, 2012 at 3:48pm by Bill*

**PHY 131**

three forces act on a moving force object. one cforce has a magnitude of 80.O N and is directed due north. another has a magnitude of 60.0N and is due west. What must the magnitude and direction of the 3rd force, such that the object continues to move at a constant velocity.
*Tuesday, March 23, 2010 at 5:17pm by S.Strange*

**physics**

The electric field at the point and points in the positive direction with a magnitude of 8.00 . At the point and the electric field points in the positive direction with a magnitude of 12.0 . Assume this electric field is produced by a single point charge. What is the charge ...
*Tuesday, February 16, 2010 at 7:13pm by Adam*

**PHYSICS 1112**

In the x direction, V increases by 20V in a distance L = 0.10 m, so the Ex field (which is - dV/dx) is -200 V/m. Similarly, the y direction, Ey = 30 V/m, and in the z direction Ez = 100 V/m The magnitude of E at the center is sqrt(200^2 + 30^2 + 100^2) = 225.6 V/m. The field ...
*Thursday, February 4, 2010 at 2:35pm by drwls*

**physics**

The coefficient of sliding friction between rubber tires and wet pavement is 0.50. The brakes are applied to a 750 kg car traveling 30 m per second, and the car skids to a stop. What is the magnitude and direction of the force of friction that the road exerts on the car? What ...
*Wednesday, August 17, 2011 at 10:34pm by Anonymous*

**Physics**

The force magnitude is B*I*L and the direction is perpendicular to both the I and current directions. In this case, that would be UP. (the direction of the cross product I x B -- use the right hand rule. )
*Wednesday, May 5, 2010 at 3:43pm by drwls*

**Physics**

q1= 25 pC q2 = -75 pC A) calculate the magnitude of the electric force between the two charges B) Is the force attractive or repulsive? C) calculate the magnitude and direction of E1 *( there is an arrow above E1) , the electric field at the orgin due to charge q1. D) ...
*Tuesday, April 12, 2011 at 11:42am by Angela Britt*

**Precalculus**

Find the component form of v given its magnitude and the angle it makes with the positive x-axis. Magnitude of v= 2 Angle= v in the direction i+3j
*Sunday, January 31, 2010 at 4:57pm by Marie*

**Physics**

A uniform electric field of magnitude 370 N/C pointing in the positive x-direction acts on an electron, which is initially at rest. The electron has moved 2.70 cm. (a) What is the work done by the field on the electron? J? (b) What is the change in potential energy associated ...
*Thursday, September 16, 2010 at 1:42am by Max*

**physics**

three cables are pulling on an object which is in static equilibrium. If 2 of the forces have the same magnitude but are separated by a 32 degree angle, determine the magnitude and direction of the third force.
*Monday, April 23, 2012 at 10:00am by Syd*

**Physics #66**

Two charges are placed on the x axis. One of the charges (q1 = +9.3 µC) is at x1 = +3.4 cm and the other (q2 = -20 µC) is at x2 = +8.9 cm. (a) Find the net electric field (magnitude and direction) at x = 0 cm. (Use the sign of your answer to indicate the direction along the x-...
*Friday, January 25, 2013 at 1:34am by Elizabeth*

**Physics**

A charge of -3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.130 m). The charges on the circle are -4.00 µC at the position due north and +5.00 µC at the position due east. What is the magnitude and ...
*Friday, September 21, 2007 at 2:34pm by Mary*

**College Physics**

The point charges in Figure 17.41 are located at the corners of an equilateral triangle 25.0 cm on a side, where qb = +12.0 µC and qc = -4.50 µC. (Assume that the +x-axis is directed to the right.) (a) Find the electric field at the location of qa. Magnitude ? N/C Direction...
*Monday, March 24, 2014 at 12:18am by Samuel*

**Physic**

Force on a wire = i B x L where i = current magnitude B = magnetic field vector L = wire length and direction vector x denotes vector cross product (i) force doubles and direction remains the same (ii) less force, same direction (iii) same force, opposite direction
*Saturday, June 4, 2011 at 4:12am by drwls*

**Vectors/Magnitude**

The vector v has a magnitude of 89.7 feet and a direction of 12(degree sign)48'. find the magnitude of its vertical component a: 887.47 ft b: 19.87 ft c: 19.38 ft d: 87.58 ft
*Sunday, April 22, 2012 at 5:04pm by Some1 Help Me Plz*

**physics**

A boat is traveling upstream in the positive direction of an x axis at 14 km/h with respect to the water of a river. The water is flowing at 9.0 km/h with respect to the ground (parallel to the boat). What are the (a) magnitude and (b) direction of the boat’s velocity with ...
*Tuesday, February 9, 2010 at 6:25pm by hannah *

**PHYSICS!**

Orville walks 270 m due east. He then continues walking along a straight line, but in a different direction, and stops 230 m northeast of his starting point. How far did he walk during the second portion of the trip and in what direction? Please I need a good explanation for ...
*Saturday, September 17, 2011 at 11:22pm by Unknown*

**Physics help**

Orville walks 270 m due east. He then continues walking along a straight line, but in a different direction, and stops 230 m northeast of his starting point. How far did he walk during the second portion of the trip and in what direction? Please I need a good explanation for ...
*Sunday, September 18, 2011 at 3:04pm by Shereen*

**Math**

An object is acted upon by two forces, u and v, with direction angles €u and€v, respectively. Find the direction and magnitude of the resultant force. U= 30lb €u = 0degrees v= 90lb €v =60 degrees
*Tuesday, November 13, 2012 at 10:34pm by Jace*

**physics**

A bird watcher meanders through the woods, walking 0.45 km due east, 0.60 km due south, and 2.70 km in a direction 37.0° north of west. The time required for this trip is 4.00 h. (a) Determine the magnitude and direction (relative to due west) of the bird watcher's ...
*Sunday, September 5, 2010 at 6:25pm by demi *

**physics**

Peggy drives from Cornwall to Atkins Glen in 37 min. Cornwall is 74.8 km from Illium in a direction 22¡Æ west of south. Atkins Glen is 24.6 km from Illium in a direction 18¡Æ south of west. Use Illium as your origin. Find the displacement during the trip. magnitude ___ km ...
*Tuesday, September 14, 2010 at 6:00pm by Ji*

**Physics B**

On a spacecraft two engines fire for a time of 615 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has velocity components of ...
*Monday, September 10, 2012 at 10:33pm by Cindy*

**Physics**

On a spacecraft two engines fire for a time of 555 s. One gives the craft an acceleration in the x direction of ax = 5.10 m/s2, while the other produces an acceleration in the y direction of ay = 7.30 m/s2. At the end of the firing period, the craft has velocity components of ...
*Tuesday, September 18, 2012 at 9:39pm by Donald*

**physics**

On a spacecraft two engines fire for a time of 748 s. One gives the craft an acceleration in the x direction of ax = 5.21 m/s2, while the other produces an acceleration in the y direction of ay = 3.45 m/s2. At the end of the firing period, the craft has velocity components of ...
*Saturday, October 5, 2013 at 8:43pm by Samantha*

**physics**

Consider two current carrying wires shown below. The current in the wire 1 is 4.5 A in the positive x direction. Find the magnitude and direction of the current in wire 2 if the net magnetic field at point A is to be 7.5 μT in the positive z direction (coming out of the ...
*Monday, July 25, 2011 at 4:01am by Chloe*

**Physics **

A person pushes on a 60-kg refrigerator with a horizontal force of -260 N; the minus sign indicates that the force points in the -x direction. The coefficient of static friction is 0.68. (a) If the refrigerator does not move, what are the magnitude and direction of the static ...
*Wednesday, February 2, 2011 at 7:05pm by Tiffany*

**Physics**

A person pushes on a 56-kg refrigerator with a horizontal force of -251 N; the minus sign indicates that the force points in the −x direction. The coefficient of static friction is 0.7. (a) If the refrigerator does not move, what are the magnitude and direction of the ...
*Wednesday, October 2, 2013 at 12:25am by Heather*

**physics**

An electric field of 264,000 N/C points due west at a certain spot. What are the magnitude and direction of the force that acts on a charge of -6.75 µC at this spot? magnitude?
*Saturday, January 8, 2011 at 6:43pm by michelle*

**physics**

A 130g ball moving at 0.35m/s in the x-direction is subject to a 0.25N force in the - y-direction for 1.0s. Find the magnitude of the ball's momentum change.
*Tuesday, November 1, 2011 at 9:30pm by Don*

**gen physics**

Vector A has a magnitude of 71 units and points due west, while vector B has the same magnitude and points due south. Find the magnitude and direction of (a) A + B and (b) A - B . Specify the directions relative to due west.
*Tuesday, July 2, 2013 at 9:19pm by ODU*

**Physics**

An air traffic controller observes two airplanes approaching the airport. The displacement from the control tower to plane 1 is given by the vector A , which has a magnitude of 220 km and points in a direction 32 degrees north of west. The displacement from the control tower ...
*Thursday, June 28, 2012 at 5:12am by Hiral*

**physic**

a golf ball of mass 0.045kg is moving in the +x-direction with a speed of 9.0m/s, and a baseball of mass 0.145kg is moving in the -y-direction with a speed of 7.0m/s. What are the magnitude and direction of the momentum of the system consisting of the two balls.
*Sunday, September 23, 2012 at 6:05am by april*

**physic**

a golf ball of mass 0.045 kg is moving in the +x direction with a speed of 9.0 m/s, and a baseball of mass 0.145 kg is moving in the -y direction with a speed of 7.0 m/s. What are the magnitude and direction if the total momentum of the system consisting of the two balls?
*Sunday, September 23, 2012 at 6:05am by jaymark*

**Physics**

A wheel spins on a horizontal axis, with an angular spped of 140rad/s and with its angular velocity pointing east. Determine the magnitude of the angular velocity after an angular acceleration of 35 rad/s^2, pointing 68 degress west of north, with a time of 4.6 seconds. I ...
*Thursday, April 23, 2009 at 1:08pm by David*

**Physics**

A force of 8.4 N is exerted on a -8.8µC charge in a downward direction. What is the magnitude and direction of the field? How would I set up this problem? Force= Eq solve for E.
*Thursday, February 22, 2007 at 12:43pm by Nat*

**Physics**

A car travels 20km due north and then 35km in a direction 60 degree west of north. Find the magnitude and direction of the resultant.
*Wednesday, March 3, 2010 at 9:58am by Chinedu*

**physics**

So much for the two vectors. Now what is your question? Do they want the magnitude of the resultant? If they want the direction of the resultant, you will have to say more about the direction of vector 2
*Thursday, October 20, 2011 at 11:59am by drwls*

**physics**

A horse pulls a barge down a canal. The horse pulls on the rope with a force of 7900 N at an angle of 18 degrees to the direction of motion of the barge, which is heading straigt along the canal. The mass of the barge is 9500kg and its acceleration is .12m/s^2. What are the a...
*Monday, November 13, 2006 at 9:11pm by Chris*

**Physics**

partscoretotalsubmissions1--10/12--10/13--10/14--10/1----4--The tail of a vector is fixed to the origin of an x, y axis system. Originally the vector points along the +x axis. As time passes, the vector rotates counterclockwise. Describe how the sizes of the x and y components...
*Monday, May 7, 2007 at 10:23am by Panda*

**Mechanics & hydromechanics**

Three forces pulling on a body are in equilibrium. The direction of one is due south, the direction of another is 80 degrees east of north, and the third force acts in the direction of 35 degrees west of north. If the magnitude of southerly force is 38 N, find the magnitudes ...
*Wednesday, January 16, 2013 at 8:07pm by joe*

**physics**

The electric field at the point x = 5.00cm and y = 0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x = 10.0cm and y = 0 the electric field points in the positive x direction with a magnitude of 16.0 N/C. Assume this electric field is produced by...
*Friday, January 27, 2012 at 1:48pm by jazz*

**physics**

At New York City, the earth's magnetic field has a vertical component of 5.2 10-5 T that points downward (perpendicular to the ground) and a horizontal component of 1.8 x 10^-5 T that points toward geographic north (parallel to the ground). What is the magnitude and direction ...
*Tuesday, February 8, 2011 at 7:23pm by aml*

**physics**

PLEASE EXPLAIN A charge moves a distance of 1.7 cm in the direction of a uniform electric field having a magnitude of 200 N/C. The electrical potential energy of the charge decreases by 9.69095 × 10−19 J as it moves. Find the magnitude of the charge on the moving ...
*Tuesday, February 16, 2010 at 6:16pm by Jonathan*

**physics**

WEll, figure the force from any corner. That same magnitude force acts at the other corner, 90 degrees, which when added to the force from the first corner, gives a force of sqrt2 * magnitude of the original force (prove that), along the diagonal direction. Finally, add that ...
*Tuesday, January 4, 2011 at 7:14pm by bobpursley*

**physics**

A forse of 75 N due north and 105 N due east is acting on a point. What is the magnitude and direction of the resultant force? What is the magnitde and direction of the equilibrant?
*Wednesday, November 2, 2011 at 11:15pm by Sarah*

**physics**

A soccer ball is kicked with an initial speed of 10.8 m/s in a direction 24.9° above the horizontal. Calculate the magnitude of its velocity 0.310 s after being kicked. What was its direction? Calculate the magnitude of its velocity 0.620 s after being kicked. What was its ...
*Thursday, September 5, 2013 at 11:25am by Anonymous*

**physics**

A soccer ball is kicked with an initial speed of 10.8 m/s in a direction 24.9° above the horizontal. Calculate the magnitude of its velocity 0.310 s after being kicked. What was its direction? Calculate the magnitude of its velocity 0.620 s after being kicked. What was its ...
*Thursday, September 5, 2013 at 11:28am by Anonymous*

**Geometry**

A plane is is flying 225 mph heading S25°W. The wind is blowing S80°E at 60 mph. 11. What is the bearing of the plane? 12. What is the smallest angle of the triangle? 13. What is the largest angle of the triangle? 14. What is the remaining angle of the triangle? 15. What is ...
*Tuesday, June 5, 2012 at 7:03pm by Amber *

**physics**

A charge moves a distance of 1.4 cm in the direction of a uniform electric field having a magnitude of 244 N/C. The electrical potential energy of the charge decreases by 108.3 × 10−19 J as it moves. Find the magnitude of the charge on the moving particle. The electrical...
*Friday, February 8, 2013 at 10:30am by EMily*

**physics 211**

A deep-sea fisherman struggles to bring in a big salmon (see figure below). Find the force each hand must exert on the pole if the tension in the line is 159 N. Neglect the weight of the pole and assume that the force exerted by the left hand is directed along the horizontal...
*Monday, April 4, 2011 at 6:49pm by Laura*

**PHYSICS**

3 FORCES ACT ON MOVING OBJECT.FIRST FORCE HAS MAGNITUDE OF 80.0N AND DIRECTED DUE NORTH.ANOTHER HAS MAGNITUDE 60.0N AND DIRECTED DUE WEST.WHAT IS THE MAGNITUDE AND DIRECTION OF THIRD FORCE,SUCH THAT THE OBJECT MOVE IN CONSTANT VELOCITY?
*Monday, June 25, 2012 at 6:47pm by Anonymous*

**math**

Find the Magnitude and direction of the resultant force. three forces with magnitude of 50,20, and 40 points acting on an object at angle 60 degres, 30 degrees, and -90degrees,k respectevly with the positive x-axis.
*Tuesday, May 11, 2010 at 1:20pm by Nancy*

**Physics**

Can someone please provide me with some insight on this question? A pair of scissors is being used to cut a string. Does each blade of the scissors have the same angular velocity (both magnitude and direction) at a given instant? yes no Give your reasoning. The answer is no. ...
*Tuesday, April 24, 2007 at 12:21am by Jim*

**physics**

A particle undergoes two displacements. The first has a magnitude of 160 cm and makes an angle of 105.0° with the positive x axis. The resultant displacement has a magnitude of 140 cm and is directed at an angle of 35.0° to the positive x axis. Find the magnitude and direction...
*Thursday, September 13, 2012 at 7:37pm by neeba*

**Physics**

Three spiders are resting on the vertices of a triangular web. The sides of the triangular web have a length of a = 0.85 m, as depicted in the figure. Two of the spiders (S1 and S3) have +7.7 µC charge, while the other (S2) has −7.7 µC charge. a)What are the magnitude ...
*Sunday, January 12, 2014 at 5:37pm by Jimmy*

**physics**

Two forces act on a 10-kg mass. The first force has a magnitude of 15 N and pushes the mass due North. The second force has a magnitude of 25 N and pushes the force due West. What is the magnitude and direction of the acceleration of the mass?
*Thursday, June 27, 2013 at 3:39pm by gale*

**physics**

Three forces act on a moving object. One force has a magnitude of 61.9 N and is directed due north. Another has a magnitude of 52.0 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object continues to move with ...
*Sunday, September 23, 2012 at 10:35pm by Robin*

**physics**

Three forces act on a moving object. One force has a magnitude of 83.4 N and is directed due north. Another has a magnitude of 47.2 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object continues to move with ...
*Sunday, June 30, 2013 at 1:00pm by landan*

**physics**

Three forces act on a moving object. One force has a magnitude of 83.4 N and is directed due north. Another has a magnitude of 47.2 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object continues to move with ...
*Friday, July 12, 2013 at 12:19am by howard*

**Physics**

There is a very large horizontal conducting plate in the plane (consider it infinitely large). Its thickness is . The charge densities on the upper and the lower surfaces are both equal to . The goal of this problem is to find the electric field (magnitude and direction) at ...
*Sunday, February 24, 2013 at 10:31pm by P*

**physics**

F=ma, so a = F/m = 9.61*10^6 / 4.36*10^5 = 22.04 m/s^2 Take cos and sin of the angle to get the x- and y-components. Add -9.8 m/s^2 in the y-direction, and then find the magnitude and direction of the resultant.
*Monday, June 24, 2013 at 12:09pm by Anonymous*

**science**

You are given three displacement vectors: with magnitude 5.0 m in the direction of 60o below the negative x-axis, vector, has an x-component of +2.5 m and a y-component of +6.0 m and vector has magnitude of 2.5 m in the negative y-axis. Find the vector so that . Calculate the ...
*Monday, July 22, 2013 at 7:25pm by miezi*

**physics**

Momentum must be conserved. Let M be the mass of either A or B. The total momentum in the y direction must remain zero, therefore Vyb(final) = -2.2 m/s In the x-direction, 6.2 M = 1.1 M + M*Vyx(final) Vyb(final) = 5.1 Get the magnitude and direction from those components.
*Friday, March 11, 2011 at 8:37pm by drwls*

**Physics**

A jogger runs 145m. in a direction 20.0 degrees east of north (displacement of vector A) and then 105m. in a direction 35.0 degrees south of east (displacement of vector B). Using components, determine the magnitude and direction of the resultant vector C for these two ...
*Friday, June 22, 2012 at 7:44am by :)*

**Physics**

A car makes a trip due north for three fourths of the time and due south one-fourth of the time. The average northward velocity has a magnitude of 27m/s, and the average southward velocity has a magnitude of 17m/s. What is the average velocity, magnitude and direction of the ...
*Sunday, September 14, 2008 at 1:45pm by DELLI*

**physical**

Two vehicles are approaching an intersection. One is a 2500- kg pickup traveling at 14.0 m/s from east to west (the negative x-direction), and the other is a 1500-kg Mercedes going from south to north (the positive y-direction at 23.0 m/s). (a) Find the x and y components of ...
*Monday, January 10, 2011 at 12:22pm by Amani*

**physics**

A 301-kg boat is sailing 16.5° north of east at a speed of 2.08 m/s. Thirty seconds later, it is sailing 37.2° north of east at a speed of 3.60 m/s. During this time, three forces act on the boat: a 32.7-N force directed 16.5° north of east (due to an auxiliary engine), a 21.7...
*Wednesday, October 3, 2012 at 11:33pm by Anonymous*

**Physics**

A 301-kg boat is sailing 16.5° north of east at a speed of 2.08 m/s. Thirty seconds later, it is sailing 37.2° north of east at a speed of 3.60 m/s. During this time, three forces act on the boat: a 32.7-N force directed 16.5° north of east (due to an auxiliary engine), a 21.7...
*Tuesday, October 9, 2012 at 11:13pm by Anonymous*

**physics**

There are two forces acting on a box of golf balls, F1 and F2. The mass of the box is 0.750 kg. When the forces act in the same direction, they cause an acceleration of 0.450 m/s2. When they oppose one another, the box accelerates at 0.240 m/s2 in the direction of F2. (a) What...
*Thursday, December 2, 2010 at 8:26pm by skhan*

**Physics**

The helicopter view in the figure below shows two people pulling on a stubborn mule. Assume that F1 is 130 N, and F2 is 65 N. The forces are measured in units of newtons (N). (a) Find the single force that is equivalent to the two forces shown. In both magnitude and direction...
*Wednesday, May 18, 2011 at 2:24pm by anne*

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