Wednesday
April 23, 2014

# Search: direction and magnitude

Number of results: 10,189

physics
E=232N/coulomb F=m*a=232*e where e is the charge on the electron. Solve for acceleration, then use displacement= a*t Now direction....If E is positive, the electron is in the negative direction. You did not state whether field was in +x or+y direction. Remember, the direction ...
Wednesday, January 16, 2008 at 4:34pm by bobpursley

physics
I would use conservation of momentum in the S and west direction. S direction M*21S+2M*v S=0 so v in the South direction is -10.5 so the same in th eEast direction v in the East Direction V=-10.5 E angle= arctan 10.5/10.5 or NE at velocity 10.5*sqrt2
Sunday, November 10, 2013 at 8:41pm by bobpursley

physics...PLZ HELP! =)
A constant force acts on a moving object. The object makes a fixed magnitude of displacement in some direction. In general, in what direction is the displacement that will result in the object traveling with the least kinetic energy after the displacement occurs? A.The same ...
Tuesday, October 16, 2012 at 5:45pm by Elizabeth

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field. T in the direction
Thursday, October 24, 2013 at 12:06am by smita

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field. T in the direction
Saturday, October 26, 2013 at 6:20pm by smita

Physical Science
Hello, I need some help with the following question. Thank You To use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field, you must point your ? A.thumb in the direction of the magnetic flux B.thumb in the ...
Sunday, March 23, 2008 at 10:02pm by Mandi

physics
What is the direction of the force acting on a current-carrying conductor lying in a magnetic field? A. It is in a direction opposite to the direction of the magnetic field. B. It is at angles to the direction of the current. C. It is at right angles to both the direction of ...
Sunday, May 24, 2009 at 6:25pm by sally

Physics
On a spacecraft two engines fire for a time of 560 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 19, 2011 at 9:01pm by Kendra

PHYSICs
No idea what direction the forces are pointing Combine them and find their magnitude and direction of resultant F Then F - .034 m g = m A A is in the direction of F of course.
Wednesday, February 2, 2011 at 7:07pm by Damon

Calculus
You have to look at their direction numbers direction of L1 is (-1,3) for L2, the direction is (3,1) since (3,1)⋅(-1,3) = 0 , they are perpendicular.
Sunday, April 8, 2012 at 2:55am by Reiny

Physics
Just look at the direction of the force: acceleartion due to braking will be in that direction only In your chosen direction F=ma
Sunday, March 2, 2008 at 4:00pm by bobpursley

You are correct. I did the direction with the right hand rules (thumb in direction of + current). My direction is the same as yours.
Monday, November 5, 2007 at 9:24pm by bobpursley

Physics
the acceleration has to be in the direction it finally goes. a= changevelociy/time= (-45-35)/.01 m/s where the positive direction is the direction it was thrown.
Tuesday, March 9, 2010 at 7:25pm by bobpursley

physical science
0m/s At its highest point, its not moving as it just changed direction from the positive direction (upwards) to the negative direction (downwards).
Monday, January 23, 2012 at 3:01pm by Jae

walter
force= Eq solve for E. direction: E direction is the direction of a + charge in the field.
Thursday, March 8, 2012 at 1:15pm by bobpursley

Physics
It is in the direction of v x B, since the charge is positive. The answer will depend upon which direction I am facing. This is a very poorly worded question. "Toward you" does not specify a direction.
Monday, April 25, 2011 at 6:40pm by drwls

physics
The current in the loop and magnetic field direction are connected according to the right hand rule: curl fingers to the direction of the current in the loop, the thumb points in the direction of magnetic moment of the loop that coincides with the direction of B. => The ...
Tuesday, December 17, 2013 at 3:57pm by Elena

Physics
tow forcess F1=(3.0)in the x direction minus(4.0) in the y direction and F2= (-6.0)in the x direction minus (4.5) in the y direction are applied to a particle. what third force would the the net, or resultant, force on the particle zero?
Saturday, September 26, 2009 at 12:30pm by Standard C.

Physics
The major difference between transverse and longitudinal waves is the (a)direction of the wave motion (b)direction of the particle placement (c)direction of the particle displacement with respect to the direction of wave motion
Friday, July 9, 2010 at 11:46am by Mary

Physics
A 50 kg skater at rest on a frictionless rink throws a 2 kg ball, giving the ball a velocity of 10 m/s. Which statement describes the skaters subsequent motion? Explain please. a. 0.4 m/s in the same direction as the ball. b. 0.4 m/s in the opposite direction of the ball. c. 2...
Sunday, December 2, 2012 at 10:01pm by Alexa

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

math
in the examples of a computerized drilling machine that were presented in your reading material, downward movement of the drill bit toward the metal plate was in the A positive direction of the x-axis B negative direction of the x-axis C negative direction of the y-axis D ...
Monday, October 27, 2008 at 2:19pm by zaira

physics
Betty Bodycheck (mB = 50 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Friday, February 10, 2012 at 8:48am by sara

physics
Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 46.3 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Sunday, October 7, 2012 at 6:55pm by raven

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 and direction...
Thursday, January 26, 2012 at 3:51pm by Anonymous

physics
do the right hand rule: thumb in direction of current on each, fingers curl in direction of magnetic field. They attract in if current in same direction.
Sunday, February 28, 2010 at 6:49pm by bobpursley

Physics
Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 46.3 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Sunday, October 7, 2012 at 8:35pm by raven

College Math
AB has direction (-3,4,1) BC has direction (0,-2,6) CD has direction (3,-4,-1) DA has direction (0,-2,6) So, AB || CD and BC || AD since the sides are parallel in pairs, they must have the same lengths in pairs (I trust you can verify this). the area is just |(b-a)x(d-a)| ...
Sunday, March 23, 2014 at 1:33am by Steve

Physics
The direction of the acceleration is the direction of the resultant force. That direction makes an angle of arctan(25/39) = 32.7 degrees with the +x axis, measured counterclockwise from the +x axis.
Wednesday, May 16, 2012 at 11:51pm by drwls

jake
Suppose that you're facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in [A. a counterclockwise direction.] B. a clockwise direction. C. the direction opposite to the ...
Tuesday, March 6, 2012 at 6:05pm by physical science

physics
Betty Bodycheck (mB = 50.2 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 45.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Friday, February 10, 2012 at 2:11pm by sara

Physics
4. Torque is the cross product of F and R vectors. It must be in the z (k vector) direction since F and R are in the x-y plane. I would expect the answer to be 20 N*m in the +z direction. Did you type choice e. direction correctly? I do not understand the meaning of your ...
Tuesday, December 27, 2011 at 7:18am by drwls

PHYSICS
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field.
Tuesday, October 29, 2013 at 1:02am by Kathy

Electricity
suppose that you're facing a straight current carrying conductor, and the current is following toward you.the lines of magnetic force at any point in the magnetic field will act in? A)the same direction as the current. B)a clockwise direction. C)the direction opposite to the ...
Saturday, August 20, 2005 at 5:05pm by angela

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

College Physics
A proton moves perpendicular to a uniform magnetic field B at 1.20 107 m/s and experiences an acceleration of 2.00 1013 m/s2 in the +x direction when its velocity is in the +z direction. Determine the magnitude and direction of the field.
Friday, October 25, 2013 at 7:52pm by Suhani

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
Betty Bodycheck (mB = 55.1 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 41.2 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Thursday, October 27, 2011 at 11:12pm by Jake

physics
Betty Bodycheck (mB = 51.4 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 42.4 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Monday, October 8, 2012 at 5:50pm by kelly

Physics
Yes, if the particle is not in motion, it will not experience a magnetic force (faraday's law) Yes to 2 too, using the third hand rule, fingers pointing in the direction magnetic field (north to south), thumb pointing in the direction of particle movement(in this case nowhere...
Monday, December 7, 2009 at 8:14pm by ALan

AP Physics
there are two vectors in quadrant three one with a magnitude of 31.0N and has a direction of 117degrees in the negative direction from the x axis the other has an unknown magnitude and unkown theta in the positive direction starting from 90 degrees
Sunday, November 21, 2010 at 5:23pm by Sierra

PHYSICS
Consider two single turn coils labeled 1 and 2 that are positioned close to each other. The switch S has been open for a long time. If the switch is now closed and the current through coil 1 is in the direction shown and increasing, which of the following statements is true? a...
Sunday, December 15, 2013 at 10:01pm by aaka

Physics
As a baseball is being caught, its speed goes from 27.5 m/s to 0.0 m/s in about 0.0050 s. The mass of the baseball is 0.150 kg. (a) What is the baseball's acceleration? 5500 m/s^2 (b) What are the magnitude and direction of the force acting on it? and is it in opposite in ...
Tuesday, January 5, 2010 at 12:42pm by Sasha

Physics: Theory
the relationship between the propaganation of an electromagnetic wave and the direction of its electric and magnetic fields are that they are, a) perpendicular to each other and parallel to the direction of propagation b) parallel to each other and perpendictular to the ...
Tuesday, June 26, 2012 at 12:07am by Anonymous

Physics Help pls
Consider two single turn coils labeled 1 and 2 that are positioned close to each other. The switch S has been open for a long time. If the switch is now closed and the current through coil 1 is in the direction shown and increasing, which of the following statements is true? a...
Monday, December 16, 2013 at 4:35pm by aaka

Physics pls help
Consider two single turn coils labeled 1 and 2 that are positioned close to each other. The switch S has been open for a long time. If the switch is now closed and the current through coil 1 is in the direction shown and increasing, which of the following statements is true? a...
Monday, December 16, 2013 at 10:21pm by aaka

Physical science
Show me the drawings of F1=3N,F2=1N all in the positive x-direction,F3=2N in the negative x-direction,F4=3N in the positive y-direction
Wednesday, February 13, 2013 at 6:40pm by Matsebe

Math
An electric train moves in a northerly direction at 100 km an hour. The wind blow in an easterly direction at 50 km per hour. In which direction does the smoke go?
Sunday, February 28, 2010 at 2:16pm by Mulalo

math
B. is false F. true if they go in the same direction, false if they go in opposite direction speed does not take into consideration the direction, whereas velocity does. OK, I give up, what is a vechile ??
Sunday, May 16, 2010 at 8:11pm by Reiny

Physics
A soccer ball is kicked with an initial speed of 5.1 m/s in a direction 24.5° above the horizontal. Find the magnitude and direction of its velocity at the following times. (Take the +x axis to be parallel to the ground, in the direction that the ball is kicked.) A) 0.25 s ...
Thursday, September 23, 2010 at 3:07am by Vin

Physics
A soccer ball is kicked with an initial speed of 5.1 m/s in a direction 24.5° above the horizontal. Find the magnitude and direction of its velocity at the following times. (Take the +x axis to be parallel to the ground, in the direction that the ball is kicked.) A) 0.25 s ...
Thursday, September 23, 2010 at 3:12am by Vin

trigo
The pilot of an airplane left A and flew 200 miles in the direction S 20deg20mins W. He then turned and flew 148 miles in the direction S 69deg40mins E. If he now heads back to A, in what direction should he fly?
Tuesday, August 3, 2010 at 6:39am by trigofunctions

Physics
An isolated 3 kg object is moving in the positive y direction along the -y axis at 2 m/s; when it reaches the origin it breaks into two pieces sending a 1 kg fragment in the +y direction at a speed of 3.7 m/s. what are the velocity and direction of the other piece immediately ...
Thursday, December 16, 2010 at 8:07pm by Sophie

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 (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

electricity
to use your left hand to determine the direction of the voltage developed in a moving conductor in a stationary magnetic field, you must point your? A) thumb in the direction of the magnetic flux. B)thumb in the direction of the electromagnetic force. C)forefinger in the ...
Tuesday, August 23, 2005 at 8:43pm by angela

physics
A space vehicle is coasting at a constant velocity of 20.7 m/s in the +y direction relative to a space station. The pilot of the vehicle fires a RCS (reaction control system) thruster, which causes it to accelerate at 0.260 m/s2 in the +x direction. After 42.0 s, the pilot ...
Thursday, October 13, 2011 at 11:25am by Taylor

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
A duck has a mass of 2.3 kg. As the duck paddles, a force of 0.08 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 55° south of east. When these forces begin to act, the velocity of the duck is 0.10 m/s in a...
Tuesday, October 12, 2010 at 7:39pm by Niveen

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

physics
in the vertical direction the motion of the two rocks is identical. They accelerate down with acceleration -9.81 m/s^2 The fact that one of them is moving with constant velocity (there is no force in the x direction) is irrelevant to the motion in the vertical direction ...
Monday, September 24, 2012 at 7:39pm by Damon

Physics
A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
Thursday, April 25, 2013 at 1:56pm by Valerie

Physics
A particle with a charge of 31 µC moves with a speed of 62 m/s in the positive x-direction. The magnetic field in this region of space has a component of 0.50 T in the positive y-direction, and a component of 0.61 T in the positive z-direction. What is the magnitude and ...
Thursday, April 25, 2013 at 1:56pm by Valerie

physics
A duck has a mass of 2.70 kg. As the duck paddles, a force of 0.130 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.210 N in a direction of 52.0 ° south of east. When these forces begin to act, the velocity of the duck is 0.110 m...
Sunday, November 25, 2012 at 2:27pm by John

physics
A duck has a mass of 2.10 kg. As the duck paddles, a force of 0.110 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.240 N in a direction of 47.0° south of east. When these forces begin to act, the velocity of the duck is 0.120 m/...
Thursday, February 21, 2013 at 9:30pm by bebenel

physics
You are asking four different questions. The Earth's magnetic field near the equator will be in a south-to-north direction, more or less. (See (Broken Link Removed) In each case, the "q V" vector of the electron will be opposite to the direction of V. To get the direction of ...
Wednesday, April 2, 2008 at 2:34am by drwls

Physics
During a picnic, you and two of your friends decide to have a three-way tug-of-war, with three ropes in the middle tied into a knot. Roberta pulls to the west with 412 N of force; Michael pulls to the south with 580 N. In what direction and with what magnitude of force should ...
Monday, October 24, 2011 at 11:41pm by mymi

Physics
I don't know if my other post went through or not, so I'm reposting it here. The first question I didn't know the answer to and the second one was worded in a way that I couldn't understand. 1. With respect to an electric and a magnetic field, how does the direction of a ...
Saturday, March 29, 2008 at 6:54pm by Emily

physics 213
A duck has a mass of 2.80 kg. As the duck paddles, a force of 0.120 N acts on it in a direction due east. In addition, the current of the water exerts a force of 0.190 N in a direction of 48.0 ° south of east. When these forces begin to act, the velocity of the duck is 0.120 m...
Friday, February 3, 2012 at 6:20pm by Erin

Physics
The statement that the velocity and acceleration MUST be in the SAME DIRECTION is not correct. A particle can have an initial velocity in one direction and have an acceleration in another. Over time, the particle's velocity will not be in the opposite direction of the ...
Monday, September 2, 2013 at 10:05pm by Devron

PHYSICS
An electron is initially at rest in, but not on the axis of, a solenoid that is carrying a steady current I directed as shown in the cross section below (counterclockwise). The electron is initially at rest on the -x axis. The current in the solenoid is suddenly increased to ...
Tuesday, December 17, 2013 at 9:51pm by asha

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
Vector Aarrowbold points in the negative y direction and has a magnitude of 8 units. Vector Barrowbold has the same the magnitude and points in the positive x direction. Find the direction and magnitude of the following vectors. a) Aarrowbold + Barrowbold magnitude direction...
Friday, October 12, 2012 at 1:28pm by HELP

science
A particle had a speed of 18m/s at a certain time and 2.4 s laer its speed was 30 m/s in the opposite direction. What were the magnitude and direction of the average acceleration of the particle during the 2.4s interval? I got -5m/s^2 but the book said it was 20m/s^2 in the ...
Sunday, September 10, 2006 at 4:25pm by Sarah

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
Betty Bodycheck (mB = 60.0 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 46.3 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Immediately after the collision, Betty is heading in a direction that is 76.0° ...
Monday, October 8, 2012 at 9:03pm by Raven

Physics
An electron moving along the positive x axis perpendicular to a magnetic field experiences a magnetic direction in the negative y direction. What is the direction of the magnetic field?
Wednesday, April 2, 2008 at 12:46am by Jessica

math
All of them. Since there are 46x46 streets, there are 45x45 blocks. The dog has to run 4 blocks in a row in the horizontal direction, and 12 blocks in a row in the vertical direction, both of which are even numbers, it will never reach the food, in which direction it tries.
Saturday, June 15, 2013 at 4:37am by MathMate

physics
A tennis ball with a speed of 6.0 m/s is thrown perpendicularly at a wall. After striking the wall, the ball rebounds in the opposite direction with a speed of 4.0 m/s. If the ball is in contact with the wall for 0.012 s, what is the average acceleration of the ball while it ...
Friday, September 7, 2012 at 12:22am by Tamera

Physics
The time (T) that it takes the spyglass to go in the x-direction is the same amount of time that it takes to travel in the y-direction. Since in the Y-direction the initial velocity is 0 and acceleration is equal to gravity (9.8m/s^2), use the equation D=ViT+1/2(aT^2). Once ...
Monday, January 21, 2013 at 10:07pm by Devron

physics
A 1175-kg cannon shoots a 33-kg shell at an angle of 25° above the horizontal and a speed of 495 m/s. What is the recoil velocity of the cannon? (Take the direction the cannon is firing to be the positive direction. Indicate the direction with the sign of your answer.)
Tuesday, October 11, 2011 at 9:50am by mymi

PHY - C of M
A 1100-kg cannon shoots a 31-kg shell at an angle of 25¡ above the horizontal and a speed of 520 m/s. What is the recoil velocity of the cannon? (Take the direction the cannon is firing to be the positive direction. Indicate the direction with the sign of your answer.)
Saturday, June 16, 2012 at 7:45pm by Sarah

physics
average velocity = (Position at start - position at finish) which is a vector divided by time In x direction runner goes: 38 meters so velocity in x direction is 38/13 = 2.92 m/s in x direction
Friday, February 7, 2014 at 4:48pm by Damon

physics
average velocity = (Position at start - position at finish) which is a vector divided by time In x direction runner goes: 38 meters so velocity in x direction is 38/13 = 2.92 m/s in x direction
Friday, February 7, 2014 at 4:58pm by Damon

math
1020 miles in the first direction and 1360 miles in the second direction. Add them as vectors. The distance traveled has components of 1360 + 1020 cos 10 = 2364.5 in the final direction and 1020 sin 10 = 177.1 in the perpendicular direction. The resultant is sqrt (2364.5^2 + ...
Wednesday, December 10, 2008 at 11:44pm by drwls

physics
No. Suppose the electron is moving in some arbitrary way. Then the compinent of the acceleration in the radial direction (i.e. the direction away from the nucleus) is given by: a = d^2r/dt^2 - (V_t)^2/r Here V_t is the velocity of theelectron in the "tangential direction", ...
Saturday, April 11, 2009 at 9:56am by Count Iblis

physics
A soccer ball with a mass of 415 g bounces off the crossbar of a goal and is deflected upward at an angle of 57° with respect to horizontal. Immediately after the deflection, the kinetic energy of the ball is 47 J. What are the vertical and horizontal components of the ball's ...
Monday, February 25, 2013 at 1:07pm by josh

physics
When the current I and mgnetic field B are perpendicular, F = B I L In your case, force per unit length F/L = 0.15 N/m; therefore B = (0.15 N/m)/16 A = 9.4*10^-3 Tesla The direction of the field is the z direction. As to whether it is up or down, use the right-hand rule to get...
Monday, March 8, 2010 at 11:01pm by drwls

physics
Suppose that you’re facing a straight current-carrying conductor, and the current is flowing toward you. The lines of magnetic force at any point in the magnetic field will act in A. the same direction as the current. B. a clockwise direction. C. the direction opposite to the ...
Monday, February 6, 2012 at 11:19pm by norman

physics
A 4.4kg ball with a velocity of 4.6m/s in the +x-direction collides head-on elastically with a stationary 2.1kg ball. Part A What is the speed of the first ball after the collision? Part B What is the direction of the velocity of the first ball after the collision? What is the...
Monday, March 3, 2014 at 10:47pm by bety

Physics - Question
Actually the direction of the air rersistance force can be somewhat different from the direction opposite to motion, depending upon the body's inclination to the direction of motion. Ski jumpers take advantage of this by leaning forward and tilting their ski tips up to stay ...
Tuesday, February 7, 2012 at 9:47am by drwls

physics
Another way to say this is to look at it from an x and y perspective. If you are moving with no acceleration, then there would be no curve to the line. If a satelite is going forward(y), there is no (x) directional changes and thus no acceleration. If it moves around the ...
Wednesday, February 8, 2012 at 7:51pm by Jarrett Tedder

physics
How much of F1 is in the +x direction? F1x = -8 cos 56 How much of F2 is in the +x direction? F2x = -5 cos 52.9 So how much total in the +x direction? Fx = F1x+F2x = -8cos56-5cos52.9 How much of F1 is in the +y direction? F1y = +8 sin 56 How much of F2 is in the +y direction? ...
Monday, May 30, 2011 at 3:11pm by Damon

physics
Work = (F)(displacement) 11.3 * 5.7 m = work in x direction there is no acceleration, so we use to 11.3 N value * displacement 5.7m in the x direction no displacement in the y direction, so no work in that direction
Wednesday, December 9, 2009 at 11:01pm by Little Miss X

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

Physics
What is the resultant of two displacement vectors having the same direction? a. The resultant is the sum of the two displacements having the same direction as the original vectors. b. The resultant is the difference of the two displacements having the same direction as the ...
Tuesday, February 5, 2008 at 4:27pm by Shenay

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