Number of results: 13,724
physics
Two particles of mass m1 = 1.0 kg and m2 = 2.6 kg are traveling with velocities v1 = 4.9, and v2 = 2.5 as shown in the figure below. What is the total momentum of this system? Be sure to give the magnitude and direction of the momentum. magnitude 1 kg · m/s direction 2...
Wednesday, November 10, 2010 at 9:35am by cody
physics
Two particles of mass m1 = 1.0 kg and m2 = 2.6 kg are traveling with velocities v1 = 4.9, and v2 = 2.5 as shown in the figure below. What is the total momentum of this system? Be sure to give the magnitude and direction of the momentum. magnitude 1 kg · m/s direction 2&...
Tuesday, November 9, 2010 at 10:34pm by cody
physics
Hi! could anyone help me to solve this problem please. Three point charges are located at the corners of an equilateral triangle as in the figure below. Find the magnitude and direction of the net electric force on the 1.60 µC charge. (A = 1.60 µC, B = 7.20 µ...
Saturday, May 15, 2010 at 6:13am by Chan
Physics
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 914 N and the drag force has a magnitude of 1120 N. The mass of the sky ...
Wednesday, October 3, 2012 at 12:31pm by Donald
physics
A rocket of mass 4.50 105 kg is in flight. its thrust is directed at an angle of 64.0° above the horizontal and has a magnitude of 7.50 106 N. Find the magnitude and direction of the rockets acceleration. Give the direction as an angle above the horizonal.
Saturday, November 20, 2010 at 3:18pm by megan
physics
Two ropes are attached to a skater as sketched in the figure below and exert forces on her as shown. Find the magnitude and direction of the total force exerted by the ropes on the skater if θ1 = 32.0° and θ2 = 53.0°. what is the magnitude and ...
Saturday, February 21, 2009 at 1:00am by kj
Physics(Please respond)
Vector A has a magnitude 2.4m and direction 130 degrees relative to the positive x-axis. Vector B has magnitude 3.0m and direction 250 degrees relative to the positive x-axis. 1) The resultant R=A+B has magnitude(in m) ? I know the R =2.75m but I am not sure how to get this. I...
Wednesday, May 16, 2012 at 9:24pm by Hannah
Physics
A baseball player is approaching home plate with a speed of 5.8m/s when he decides to slide. He slides for 1.1s, just reaching the plate safe. What is the magnitude and direction of the player's acceleration? How far did he slide? His magnitude of acceleration is 5.8/1.1= ...
Saturday, September 11, 2010 at 8:11pm by Jamie
Physics
The force exerted by the wind on the sails of a sailboat is 310 N north. The water exerts a force of 240 N east. If the boat (including its crew) has a mass of 330 kg, what are the magnitude and direction of its acceleration? magnitude in m/s2 direction in ° north of east
Monday, June 9, 2008 at 5:52pm by Elisa
physics
REPOST PLEASE HELP a rock is thrown horizontally with a speed of 17 m/s from a vertical cliff of height 34 m. A- I solved for t=2.63 B-How far will it land from the base of the cliff? im using x=xo+vox*t i get -6.46 and it is wrong. What am I doing wrong? C-What is the ...
Tuesday, September 7, 2010 at 1:45pm by tommy
physics(Please check)
Vector A has a magnitude of 3.0 m and direction 1o3 degrees relative to the positive x-axis. Vector B has magnitude 5.0m and direction 215 relative to the positive x-axis. 1) The resultant R=A + B has magnitude? I did Rx= 3 cos 103 + 5 cos 215 Ry=3 sin 103 + 5 sin 215 Then ...
Wednesday, June 20, 2012 at 10:15am by Hannah
physics
The figure shows a 0.3 kg baseball just before and just after it collides with a bat. Just before, the ball has velocity of magnitude 11.4 m/s and angle = 31.4 degrees. Just after, it is traveling directly upward with velocity of magnitude 9.00 m/s. The duration of the ...
Monday, March 25, 2013 at 6:54pm by Alex
gr 12 physics NEED HELP PLEASE
Vector A has a magnitude of 12.3 units and points due west. Vector B points due north. (a) What is the magnitude of B if A + B has a magnitude of 15.0 units? (b) What is the direction of A + B relative to due west? (c) What is the magnitude of B if A - B has a magnitude of 15....
Thursday, September 16, 2010 at 11:30am by Anonymous
Physics
Acceleration describes the change in velocity which is the vector, therefore, velocity may chage its magnitude and direction. Each case is described by the component of acceleration. The change in magnitude of velocity is described by tangential component of acceleration a(...
Sunday, July 29, 2012 at 3:44am by Elena
Physics please check
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 = 0.125 m). The charges on the circle are -4.60 µC at the position due north and +5.00 µC at the position due east. What is the ...
Friday, December 14, 2007 at 2:18am by Mary
PHysics
Vector a has a magnitude of 5 m and is directed east. vector b has magnitude of 4m and is directed 35 degrees west of north. A)What is the magnitude and direction of vector a + vector b b)What is the magnitude and direction of vector b- vector a? I should have gotten a)4.2m at...
Monday, October 2, 2006 at 3:31pm by Jesse
physics
A firefighter with a weight of 722 N slides down a vertical pole with an acceleration of 3.11 m/s2, directed downward. (a) What are the magnitude and direction of the vertical force (use up as the positive direction) exerted by the pole on the firefighter? N (b) What are the ...
Thursday, December 11, 2008 at 7:33pm by johnny
physics lab
Consider different points along one spoke of a wheel rotating with constant angular velocity. Which of the following is true regarding the centripetal acceleration at a particular instant of time? A The magnitude of the centripetal acceleration is greater for points on the ...
Wednesday, February 16, 2011 at 12:22am by Chris
physics
describe the force board experiment to show how to obtain the resultant of two non-parallel coplanar force acting at a point.four forces of magnitude 10N, 5N, 4N, AND 6N acts on an oblect in the direction north. West, east and south respectively.find the magnitude and ...
Wednesday, July 27, 2011 at 4:06pm by jude
Physics
When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 914 N and the drag force has a magnitude of 1120 N. The mass of the sky ...
Tuesday, October 9, 2012 at 10:43pm by Anonymous
physiC
A uniform door (0.81 m wide and 2.1 m high) weighs 150 N and is hung on two hinges that fasten the long left side of the door to a vertical wall. The hinges are 1.9 m apart. Assume that the lower hinge bears all the weight of the door. Determine the magnitude and direction of ...
Tuesday, March 1, 2011 at 11:23am by lina
physics
(a) The direction of the acceleration is the direction of the sum of those three vectors. Add them up. The ratio of the i and j sums will tell you the direction of the acceleration. You will need the components and the magnitude for later questions. (b) The mass is the net ...
Thursday, March 5, 2009 at 10:06pm by drwls
Phsyicsssss helppp
A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and direction. magnitude ...
Sunday, February 12, 2012 at 3:26pm by Anonymous
8th grade science
velocity has direction and magnitude, speed has only magnitude.
Monday, February 28, 2011 at 7:59pm by bobpursley
Physics
Vector ~A has a magnitude of 7 and points in the positive x-direction. Vector ~B has a magnitude of 21 and makes an angle of 30⦠with the positive x-axis. What is the magnitude of ~A â ~B ?
Monday, September 6, 2010 at 3:17pm by nelly
physics
vector A has a magnitude of 57 m and points in a direction 20 degrees below the positive x axis. vector B has magnitude of 70 m and points in a direction 57 degrees above the positive x axis. Find the magnitude of the vector D = A-B.
Wednesday, September 8, 2010 at 6:38pm by Joanna
Physics
1. Consider the two vectors P and Q. The definition of P is P = 􀀃i × (􀀃i × 􀀃j). The definition of Q is Q = (􀀃i × 􀀃i) × 􀀃j . a. The magnitude of P is equal to the magnitude of ...
Tuesday, December 27, 2011 at 7:18am by Sarah
Physics
A rocket of mass 4.45E+5 kg is in flight. Its thrust is directed at an angle of 51.1° above the horizontal and has a magnitude of 7.64E+6 N. Calculate the magnitude (enter first) and direction of the rocket's acceleration. Give the direction as an angle above the ...
Friday, November 4, 2011 at 9:22am by Nick
physics
A rocket of mass 4.45E+5 kg is in flight. Its thrust is directed at an angle of 51.1° above the horizontal and has a magnitude of 7.64E+6 N. Calculate the magnitude (enter first) and direction of the rocket's acceleration. Give the direction as an angle above the ...
Friday, October 28, 2011 at 8:46am by Nick
Physics
An object with a charge of -4.4 uC and a mass of 1.4×10^−2 kg experiences an upward electric force, due to a uniform electric field, equal in magnitude to its weight. Find the magnitude of the electric field. Find the direction of the electric field. If the the...
Monday, January 23, 2012 at 11:42pm by Cooper
Physics
Perform a vector addition to determine the magnitude and direction of the total displacement. Divide that by the total elapsed time for the average velocity. The average velocity has both magnitude and direction. They may want both.
Monday, October 4, 2010 at 1:53am by drwls
PHYSICSSS please helppp ASAP
A 9.5-kg watermelon and a 7.2-kg pumpkin are attached to each other via a cord that wraps over a pulley, as shown. Friction is negligible everywhere in this system. (a) Find the accelerations of the pumpkin and the watermelon. Specify magnitude and direction. magnitude ...
Sunday, February 12, 2012 at 6:23pm by Anonymous
Physics
Consider three force vectors ~ F1, ~ F2, and ~ F3. The vector ~ F1 has magnitude F1 = 86 N and direction θ1 = 169◦; the vector ~ F2 has magni- tude F2 = 46 N and direction θ2 = 240◦; and the vector ~ F3 has magnitude F3 = 45 N and ...
Sunday, September 6, 2009 at 12:04pm by Nanhi
physics
1. Three particles with charges of +11 mC each are placed at the vertices of an equilateral triangle with sides of 15.0 cm. What is the magnitude and direction of the net force on each particle? 2. A proton is released in an uniform electric field and it experiences a force of...
Monday, January 4, 2010 at 10:48pm by Sasha
sciecne
In unit-vector notation, what is teh sum of vector a =(4m)i + (3m)j and vector b= (-13m)i +(7m)j? a)I got (27m)i +(10m)j but the book said it should have been (-9m)i +(10m)j b)what is the magnitude and direction of vector a + vector b (relative to i)? to find the magnitude i ...
Saturday, September 30, 2006 at 4:44pm by Tom
University Physics
If is added to = 6.7 + 6.9, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of . What is the magnitude of ?
Tuesday, September 6, 2011 at 3:18pm by Phil
URGENT SUMMER SCHOOL CALCULUS
A force of magnitude 15 N is the resultant of two forces, one of which has a magnitude of 8 N and acts at an angle of 30° to the resultant. Find the magnitude and direction of the other force...how do I begin to solve this!?
Sunday, June 29, 2008 at 8:30pm by Derek
Physics
Cn u plz gv explaination 2 the solutions bit by bit in brief ? Bcz i actually cnt wrk out hw 2 use d formula 2 answer it wen i revise nw. Much obliged. A particle of mass 0.5 kg is free to move on a smooth horizontal plane. A force of magnitude 0.8 N acts on the particle in a ...
Monday, September 29, 2008 at 12:46am by LingWarm
Physics
An object of mass 1.25 kg on a flat surface has two forces acting on it, F1 and F2 in the horizantal direction. F1 acts in the positive direction, F2 acts in the negative direction. The magnitude of F1 is 26.75 N. The object moves strictly along the horizontal x-axis, which we...
Tuesday, October 26, 2010 at 1:20pm by Lisa
Physics
If B is added to C = 6.5i + 4.6j, the result is a vector in the positive direction of the y axis, with a magnitude equal to that of C. What is the magnitude of B?
Thursday, January 20, 2011 at 4:16pm by Ethan
Physics
An 100.0-N crate of apples sits at rest on a ramp that runs from the ground to the bed of a truck. The ramp is inclined at 29.0° to the ground. (b) The interaction partner of this normal force has what magnitude and direction? Magnitude 87.46 N Direction 61° below the ...
Monday, May 21, 2012 at 5:05pm by Amy
physics
Three forces are applied to the ring of a force table,60N at an angle of 10.0 degrees, 40N at an angle of 70.0 degrees, and 50N at an angle of 100.0 degrees. Find the magnitude of the resultant and the direction by using the analytical method. What is the magnitude of the ...
Monday, December 10, 2012 at 11:23am by ramona
Physics
Four charged particles are at the corners of a square of side a, as shown in the figure below. (A = 4, B = 5, C = 5.) (a) Determine the magnitude and direction of the electric field at the location of charge q. (Use k_e for the Coulomb constant and q and a as necessary.) ...
Monday, February 1, 2010 at 9:25pm by Zoe
PhYSiCs
A -10 mC charge experiences a force of 75 N directed south. What is the electric field magnitude and direction at the location of the charge? If this charge is removed and not replaced, what is the electric field magnitude and direction at the location it used to occupy?
Friday, May 4, 2012 at 6:25pm by Allieeeeeeee:)
physics honors
You are given a vector in the xy plane that has a magnitude of 100.0 units and a y component of -50.0 units (b) Assuming the x component is known to be positive, specify the vector which, if you add it to the original one would give a resultant vector that is 85.0 units long ...
Sunday, October 10, 2010 at 6:31pm by Kavi
physics
The momentum in the x direction remains 0.130*0.35 = 0.0455 kg m/s The momentum in the y direction goes from zero to 0.25*1 = 0.25 kg m/s Add those two components vectorially for the final momentum magnitude. I get 0.2541 kg m/s Subtract the initial momentum magnitude from that
Tuesday, November 1, 2011 at 9:30pm by drwls
physics
I'm going to assume the diagram gives the tension in the string, because with what you stated you're missing a degree of freedom. Only two equations can be developed (Sum of forces = 0 in both the x and y direction). However, we're missing the tension's ...
Wednesday, February 29, 2012 at 8:24pm by David
physics
A car is driven 125 km west and then 85 km southwest. What is the displacement of the car from the point of origin (magnitude and direction)? find magnitude in km find direction in degrees. South of west.
Tuesday, December 16, 2008 at 5:42pm by geffrey
physics
xhat and y hat are unit direction vectors, of magnitude 1. Thus 12xhat is 12 in the x direction.
Thursday, December 13, 2007 at 5:54pm by bobpursley
physics
A 45 kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.0 m/s. Her hands are in contact with the wall for 0.80 s. Ignore friction and wind resistance. Find the magnitude and direction of the average ...
Tuesday, October 14, 2008 at 9:09pm by kb
Physics- Charge in electromagnetic field
An antiproton (which has the same properties as a proton except that its charge is -e) is moving in the combined electric and magnetic fields of the figure: h tt p://post image. org/image/2sh3s3hs4/ What are the magnitude and direction of the antiproton's acceleration at ...
Monday, March 7, 2011 at 1:37pm by Robert
calculus
express each as a vector in component form magnitude 100,direction 50 = (100cos50, 100sin50) = (64.279 , 76.604) mag50,direction160 = (-8.682 , 17.101 mag80, direction -20 = ( 75.175 , -27.361) add up the 3 vectors = (130.772 , 66.344) magnitude = √(x^2 + y^2) = 146....
Tuesday, January 8, 2013 at 11:25pm by Reiny
physics
A 49-kg bungee jumper has fallen far enough that her bungee cord is beginning to stretch and resist her downward motion. Find the force (magnitude and direction) exerted on her by the bungee cord at an instant when her downward acceleration has a magnitude of 7.3 m/s2. Ignore ...
Thursday, January 27, 2011 at 6:24pm by brian
Physics(Please just check, thanks)
Using a force table the direction and magnitude had to be found for the following measurements: F1 = 200 grams at 30 degrees; F2 = 200 grams at 120 degrees The magnitude and direction found was 280 grams at 257 degrees. Using the magnitude and direction of F1 and F2 I need to ...
Monday, September 24, 2012 at 10:42pm by Hannah
physics
A rubber ball (mass 0.21 kg) is dropped from a height of 1.7 m onto the floor. Just after bouncing from the floor, the ball has a speed of 3.6 m/s. (a) What is the magnitude and direction of the impulse imparted by the floor to the ball? Magnitude? Direction? (b) If the ...
Sunday, December 4, 2011 at 7:07pm by glenmore
Physics
A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.18 m. The particle experiences a constant electric force, and its motion is along the line of action of the force. The difference between the particle's electric potential energy at...
Wednesday, January 12, 2011 at 12:30am by ali
Physics
A circular loop is rotated 360° in a magnetic field. Which of the following is true for the induced current produced in the coil? only the magnitude of the current changes only the direction of the current changes both the magnitude and the direction of the current change ...
Tuesday, January 29, 2013 at 7:51pm by ehafoewjioajphysics
Math
Since a vector shows direction as well as magnitude, the arrow should point in the direction that the forces are acting.
Friday, October 22, 2010 at 12:08am by Henry
11th grade
A 40-kg skater is standing still in front of a wall. By pushing against the wall she propels herself backward with a velocity of -1.8 m/s. Her hands are in contact with the wall for 0.80 s. Ignore friction and wind resistance. Find the magnitude and direction of the average ...
Tuesday, November 16, 2010 at 3:54pm by fgh
math
a vector has a magnitude of 18.3 cm and a direction of 38 degrees. find the magnitude of its vertical and horizontal components to the nearest tenth.
Tuesday, April 19, 2011 at 7:06pm by Brad
Physics
A 1200 kg car pushes a 2100 kg truck that has a dead battery to the right. When the driver steps on the accelerator, the drive wheels of the car push against the ground with a force of 4500 N . What is the magnitude of the force the car applies to the truck? What is the ...
Tuesday, November 1, 2011 at 12:15am by Help Physics college
Physics - HELP
An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground? magnitude/direction (east ...
Sunday, September 27, 2009 at 10:53am by Anonymous
physics
An airplane is heading due south at a speed of 515 km/h. A wind begins blowing from the southwest at a speed of 100 km/h (average). (Hint: First draw a diagram.) (a) What is the velocity (magnitude and direction) of the plane relative to the ground? magnitude/direction (east ...
Saturday, September 26, 2009 at 11:15pm by DJ
HS Physics
Please help...I know the direction is up, but I can't figure out the magnitude, except that its label is kg · m/s, I think. A 0.400-kg ball is dropped from rest at a point 1.80 m above the floor. The ball rebounds straight upward to a height of 0.730 m. What are the...
Friday, October 15, 2010 at 6:22pm by Tzana
Physics
Velocity is a) is the same as speed b) has both magnitude and direction c) is a scalar quantity d) is specified by direction only I think its B, anyone can help
Tuesday, January 26, 2010 at 4:46pm by Bryian
Science
Velocity is a) is the same as speed b) has both magnitude and direction c) is a scalar quantity d) is specified by direction only I think its B, anyone can help
Tuesday, January 26, 2010 at 4:02pm by Bryian
Physics
A person pushes on a 62-kg refrigerator with a horizontal force of -256 N; the minus sign indicates that the force points in the −x direction. The coefficient of static friction is 0.61. (a) If the refrigerator does not move, what are the magnitude and direction of ...
Tuesday, September 27, 2011 at 6:22pm by Natalie
Physics
Vector Barrowbold has magnitude 9.4 and direction 14° below the +x-axis. Vector Carrowbold has x-component Cx = -1.6 and y-component Cy = -7.7. Compute direction of Carrowbold & direction of Carrowbold + Barrowbold. Also direction of Carrowbold − Barrowbold ...
Thursday, January 26, 2012 at 3:51pm by Anonymous
Physics
The electric field at the point x=5.00 cm and y=0 points in the positive x direction with a magnitude of 10.0 N/C. At the point x=10.0 cm and y=0, the electric field points in the positive x direction with a magnitude of 15.0 N/C. Assuming the field is produced by a single ...
Sunday, February 7, 2010 at 5:22pm by Katherine
PHYSICS
A crate of potatoes of mass 23.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are μs = 0.65 and μk = 0.44. Find the frictional force (magnitude and direction) on the crate if the crate is at rest. Please help ...
Sunday, September 25, 2011 at 3:48pm by Shereen
Physics
Vector A points in the negative x direction. Vector B points at an angle of 29.0 above the positive x axis. Vector B has a magnitude of 17m and points in a direction 46.0 below the positive x axis. Given that A+B+C=0 Find magnitude of A and B
Friday, September 3, 2010 at 4:42pm by Jayson
Physics
On a safari, a team of naturalists sets out toward a research station located 6.3 km away in a direction 42° north of east. After traveling in a straight line for 2.2 km, they stop and discover that they have been traveling 23° north of east, because their guide ...
Wednesday, August 18, 2010 at 10:36pm by yoyoma
Diagram for already posted question
A force of magnitude 15 N is the resultant of two forces, one of which has a magnitude of 8 N and acts at an angle of 30° to the resultant. Find the magnitude and direction of the other force..what should my diagram look like? Thanks
Monday, June 30, 2008 at 1:00pm by Derek
Physics
A 10.0-kg object experiences a drag force due to air resistance. The magnitude of this drag force depends on its speed, and obeys the equation Fdrag =(12.0 N-s/m)v + (4.00 N-s2/m2)v2. (a) What is the terminal speed of this object if it is falling due to gravity? (b) At what ...
Tuesday, February 19, 2013 at 9:16am by Stehlin
Physics
Three lead balls of mass m1 = 16kg, m2 = 26kg, and m3 = 9.3kg are arranged as shown in the figure below. Find the total gravitational force exerted by balls 1 and 2 on ball 3. Be sure to give the magnitude and the direction of this force. magnitude N direction ° ...
Friday, June 14, 2013 at 12:41pm by Jody
Physics
a 1.00-kg object is observed to accelerate at 10.0m/s∧2 in a direction 30.0 north of east. the force F2 acting on the object has magnitude 5.00 N and is directed north. determine the magnitude and direction of the force F1 acting on the object.
Wednesday, March 24, 2010 at 11:17am by Brandon
more physics
a 1.00-kg object is observed to accelerate at 10.0m/s∧2 in a direction 30.0 north of east. the force F2 acting on the object has magnitude 5.00 N and is directed north. determine the magnitude and direction of the force F1 acting on the object.
Thursday, March 25, 2010 at 9:41pm by Brandon
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
a square with side length 2.0 cm has a charge of -1.0x10^-6C at every corner. What is the magnitude and direction of the electric force on each charge? What is the force on a fifth charge placed in the centre of this square? Does the sign of the fifth charge affect the ...
Thursday, June 7, 2012 at 6:35pm by lindsay
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
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
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 ...
Monday, January 28, 2013 at 1:36am by Jasmine
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
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 ...
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 ...
Wednesday, September 28, 2011 at 5:10pm 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 ...
Wednesday, September 28, 2011 at 4:28pm by Anonymous
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
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...
Monday, September 12, 2011 at 1:33pm by jennifer
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
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 ...
Saturday, September 1, 2007 at 9:42am 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 ...
Wednesday, August 29, 2007 at 10:15pm by Mary
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. 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
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
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'...
Wednesday, February 20, 2013 at 4:24pm 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'...
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'...
Wednesday, February 20, 2013 at 4:23pm by Becca
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
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