Wednesday
May 22, 2013

Search: The force acting on a particle varies as shown in the figure. (The x axis is marked in increments of

Number of results: 22,087

physics
A force of magnitude Fx acting in the x-direction on a 2.50-kg particle varies in time as shown in the figure below. (a) Find the impulse of the force. (b) Find the final velocity of the particle if it is initially at rest (c) Find the final velocity of the particle if it is ...
Thursday, March 29, 2012 at 7:06pm by sally

PHYSICS
The only force acting on a particle is conservative force F. If the particle is at point A, the potential energy of the system associated with F and the particle is 39 J. If the particle moves from point A to point B, the work done on the particle by F is +25 J. What is the ...
Wednesday, April 17, 2013 at 7:29pm by Sara

Physics Electric Force
Particle A of charge 2.76 10-4 C is at the origin, particle B of charge -6.54 10-4 C is at (4.00 m, 0), and particle C of charge 1.02 10-4 C is at (0, 3.00 m). We wish to find the net electric force on C. (a) What is the x component of the electric force exerted by A on C? (b...
Thursday, April 11, 2013 at 2:01pm by Alex

chem
the bending is caused by a force acting on the particle. A heavier particle has more inertia, so the same force will move it less.
Tuesday, August 21, 2012 at 10:15am by Steve

Physics
A particle of mass m is subjected to a force acting in the x-direction. Fx = (3.2 + 0.55x) N. Find the work done by the force as the particle moves from x = 0 to x = 4.5 m. 1
Tuesday, September 21, 2010 at 1:13pm by Gina

phsics
A charged particle is moving in a uniform magnetic field. Which of the following statements concerning the magnetic force exerted on the particle is false? A) It does not change the kinetic energy of the particle. B) It can act only on a particle in motion. C) It increases the...
Monday, April 2, 2007 at 9:20pm by benton

PHYSICS
When the force F acting on a particle depends only on the particle's position coordinate x, and when the particle moves along the x-axis, then the work done by the force is the area under: a) F versus x curve b) F versus v curve (v is velocity) c) F versus a curve (a is ...
Monday, March 19, 2007 at 4:00pm by terrence

Physics
Before the force is applied (t < 0 on the graph), the particle moves along the X axis with velocity V1 = -6.6 m/s. Find the velocity V2 of the particle after force stops acting on it. (t > 9s)
Monday, December 10, 2012 at 8:20pm by jason

Physics
Before the force is applied (t < 0 on the graph), the particle moves along the X axis with velocity V1 = -7.6 m/s. Find the velocity V2 of the particle after force stops acting on it. (t > 8s)
Sunday, October 30, 2011 at 8:55pm by Amy

physics
a particle is subject to a force fx that varies with a position shown in figure P 7.15.find the work done by the force on the particle as it moves (a)from x=0 to x=5.00,(b)from 5.00m to 10.0 m,(c)from x=10.0 to x=15.0 m.(d) what is the total work done by the force over the ...
Wednesday, February 6, 2013 at 8:43pm by Anonymous

Physics
The vector position of a 3.00 g particle moving in the xy plane varies in time according to the following equation. r1 = <(3i+3j)t + 2jt^2> At the same time, the vector position of a 5.85 g particle varies according to the following equation. r2 = <3i - ...
Thursday, December 1, 2011 at 2:19pm by LadyJ

physics
A 4.90 kg particle moves along the x axis. Its position varies with time according to x = t + 3.4t3, where x is in meters and t is in seconds. (a) Find the kinetic energy at any time t. (Accurately round any coefficient to exactly two decimal places. Use t as necessary.) K...
Monday, November 14, 2011 at 2:48pm by carlton

physics
A small particle has charge -4.20 and mass 1.10×10−4 . It moves from point , where the electric potential is = 250 , to point , where the electric potential = 740 is greater than the potential at point . The electric force is the only force acting on the ...
Wednesday, September 12, 2012 at 11:37pm by Anonymous

physics
A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 3.50t2 - 2.50t3, with x in meters and t in seconds. In unit-vector notation, what is the net force acting on the particle at t = 3.45 s?
Tuesday, May 4, 2010 at 11:40am by Anonymous

physics
A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 4.50t2 - 3.00t3, with x in meters and t in seconds. In unit-vector notation, what is the net force acting on the particle at t = 3.60 s?
Friday, February 12, 2010 at 7:59pm by Anonymous

Physics
The vector position of a 3.40 g particle moving in the xy plane varies in time according to the following equation. At the same time, the vector position of a 5.05 g particle varies according to the following equation. For each equation, t is in s and r is in cm. Solve the ...
Sunday, December 2, 2012 at 7:42pm by carlton

Physics help
A particle moving along the y-axis has the potential eneryg function U = 6 * y3 J where y is in m. What is the y-component of the force on the particle at 0 m? What is the y-component of the force on the particle at 9 m? What is the y-component of the force on the particle at ...
Wednesday, November 9, 2011 at 9:45pm by Me

physics
An alpha particle (charge = +2.0e) is sent at high speed toward a gold nucleus (charge = +79e). What is the electric force acting on the alpha particle when the alpha particle is 1.7 multiplied by 10-14 m from the gold nucleus? N
Tuesday, April 10, 2012 at 8:01pm by brooke

Physics
A particle is acted upon two forces given by the vector equations, F1=1.5i-0.7j and F2=-3.1i+3.6j, with values measured in Newtons(N). Calculate the resultant force, in N, acting on the particle, giving your answer to 3 dec places.
Monday, March 5, 2012 at 3:00am by Annoymous

physics (lVERY LONG)
A force of 200 N is being exerted on a blocki, which has a mass of 10 kg and is on 30 degrees inclined plane. The force is acting up the plane and parallel to it. The coefficient of friction between the block and the plane is .3 and the plane is 12 m long. a. What is the ...
Monday, November 22, 2010 at 7:18pm by rhet butler

Physics
A net external force acts on a particle. This net force is not zero. Is this sufficient information to conclude that (a) the velocity of the particle change, (b) the kinetic energy of the particle changesm and (c) the speed of the particle changes? Give your reasoning in each ...
Thursday, April 24, 2008 at 1:57am by Shante

physics
three point particles are fixed in place in an xy plane. Particle A has mass mA = 3 g, particle B has mass 2.00mA, and particle C has mass 3.00mA. A fourth particle D, with mass 4.00mA, is to be placed near the other three particles. What (a) x coordinate and (b) y coordinate ...
Sunday, January 2, 2011 at 5:38pm by Anonymous

Physics
A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 3.50t2 - 2.50t3, with x in meters and t in seconds. In unit-vector notation, what is the net force acting on the particle at t = 3.45 s? I tried solving using s=Vit + (.5)at^2 but I can't find ...
Tuesday, September 22, 2009 at 1:55am by richard

physics
A 0.150 kg particle moves along an x axis according to x(t) = -13.00 + 2.00t + 3.50t2 - 2.50t3, with x in meters and t in seconds. In unit-vector notation, what is the net force acting on the particle at t = 3.45 s? I tried solving using s=Vit + (.5)at^2 but I can't find ...
Tuesday, September 22, 2009 at 12:29am by jeff

Physics
A pendulum consist of a particle P of mass m, attached to one end of a model string of length l=2.85m. The other end of the string is attached to a fixed point O and the particle moves in a vertical circle about the fixed point. The angle made by the string with the vertical ...
Friday, April 27, 2012 at 10:45am by Anonymous

PHYSICS PLEASE HELP!!!
Please someone have mercy this is a test grade and I have no idea what to do ! A force of 200 N is being exerted on a blocki, which has a mass of 10 kg and is on 30 degrees inclined plane. The force is acting up the plane and parallel to it. The coefficient of friction between...
Monday, November 22, 2010 at 7:53pm by Tyler

physics
A particle has a charge of +2.2 μC and moves from point A to point B, a distance of 0.16 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...
Wednesday, January 30, 2013 at 8:10pm by mageda

Physics
A charged particle A exerts a force of 2.39 ìN to the right on charged particle B when the particles are 13.3 mm apart. Particle B moves straight away from A to make the distance between them 16.1 mm. What vector force does particle B then exert on A?
Saturday, February 6, 2010 at 6:51pm by Jan

Physics
a packing ccrate slides down an incline ramp at constant velocity. Thus we can deduce that a) a frictional force is acting on it b) a net downward force is acting on it c) it may be accelerating d) it is not acted on by appreciable gravitational force with a constant velocity ...
Wednesday, October 10, 2007 at 2:12pm by Tammy

Dynamics
Constant of area velocity for a central force motion of a particle does not imply that_________ a)Equal areas were are swept by the radius vector in equal times. b)The tangential velocity varies inversely as the length of the radius vectors c)The angular momentus is conserved ...
Saturday, August 4, 2012 at 5:52am by Rajan

Physics
A single conservative force acts on a 5.00 kg particle. The equation Fx = (2x + 4) N describes this force, where x is in meters. As the particle moves along the x axis from x = 1.40 m to x = 5.80 m, calculate the following. (a) the work done by this force on the particle (b) ...
Saturday, February 6, 2010 at 1:32pm by ucieng

Physics
A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field heading due south. All ...
Thursday, April 4, 2013 at 8:56pm by Don

Physics
A positively charged particle of mass 5.60 10-8 kg is traveling due east with a speed of 60 m/s and enters a 0.49-T uniform magnetic field. The particle moves through one-quarter of a circle in a time of 1.20 10-3 s, at which time it leaves the field heading due south. All ...
Thursday, April 4, 2013 at 4:14pm by Don

Science
Net force = force acting up - force acting down = 30N - 50N Net force = -20N Net force is in the direction of the largest force.
Monday, August 27, 2012 at 9:28pm by Charrice

physics
If motion of a particle of mass (m) is given by y=ut+1/2gt^2 (square).find force acting on it
Friday, October 5, 2012 at 5:20am by an

Physics
Particles 1 and 2 have charge 20uC each and are held at separation distance d=1.50m. (a)What is the magnitude of the electrostatic force on particle 1 due to particle 2? Particle 3 of charge 20uC is positioned so as to complete an equilateral triangle. (b) What is the ...
Wednesday, April 10, 2013 at 12:11pm by Nick

PHYSICS
The work-energy theorem states that a force acting on a particle as it moves over a ______ changes the ______ energy of the particle. A)distance / potential B)distance / kinetic C)vertical displacement / potential D)none of the above
Sunday, February 13, 2011 at 4:20pm by SHILA

physics
A particle with a charge of -5.0 μC and a mass of 4.3 x 10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 18 m/s. The only force acting on the particle is the electric force. What is the potential difference VB - ...
Monday, February 11, 2013 at 1:11pm by Anonymous

Physics
A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of friction acting on the block C.... the normal ...
Saturday, October 9, 2010 at 9:53am by Esthere G

physics
A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of friction acting on the block C.... the normal ...
Saturday, October 9, 2010 at 12:11am by Bolo

physics
A 10-KG block is pulled along a rough horizontal floor by a 12-N force acting at a 30 degrees angle with respect to the horizontal. The block accelerates at 0.1 m/s2. Calculate A....... the weight of the block B...... the force of friction acting on the block C.... the normal ...
Friday, October 8, 2010 at 11:57pm by Bolo

Physics. PLEASE HELP!!
Find the power input of a force F=(7 N)ˆý + (3 N) ˆk acting on a particle that moves with a velocity v = (6 m/s)ˆý. Answer in units of W
Friday, March 23, 2012 at 5:47pm by Ashley

Physics(please help, I'm stuck)
A particle with a charge of -1.4 μC and a mass of 2.9 x 10-6 kg is released from rest at point A and accelerates toward point B, arriving there with a speed of 22 m/s. The only force acting on the particle is the electric force. What is the potential difference VB - ...
Wednesday, September 12, 2012 at 8:02pm by Alex

physics
The vector position of a 3.75 g particle moving in the xy plane varies in time according to the following equation. At the same time, the vector position of a 5.20 g particle varies according to the following equation. For each equation, t is in s and r is in cm. Solve the ...
Sunday, November 27, 2011 at 10:28pm by carlton

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the ...
Tuesday, March 27, 2012 at 7:48pm by Sheri

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the ...
Tuesday, March 27, 2012 at 7:31pm by Sheri

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the ...
Tuesday, March 27, 2012 at 7:18pm by Sheri

Physics
The vector position of a 3.45 g particle moving in the xy plane varies in time according to 1 = 3 + 3t + 2t2 where t is in seconds and is in centimeters. At the same time, the vector position of a 5.00 g particle varies as 2 = 3 − 2t2 − 6t. Determine the ...
Tuesday, March 27, 2012 at 7:00pm by Sheri

Physics/Math
A force F = (4.0 N)i + cj acts on a particle as the particle goes through displacement d = (3.4 m)i - (2.0 m)j. (Other forces also act on the particle.) What is the value of c if the work done on the particle by force F is each of the following? (a) zero (b) 19 J (c) -17 J ...
Thursday, March 1, 2007 at 12:05am by Technoboi11

physics
A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.19 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...
Tuesday, January 17, 2012 at 10:39pm by Taylor

physics
A particle has a charge of +1.5 µC and moves from point A to point B, a distance of 0.19 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...
Tuesday, January 17, 2012 at 10:38pm by Taylor

physics
A 2.6-kg particle moving along the x axis has a velocity of +1.7 m/s as it passes through the origin. It is subjected to a single force, Fx, that varies with position, as shown below.
Tuesday, March 26, 2013 at 7:36pm by Brandon

Physics
Nevermind Got it Block has two forces acting on it Horizontal force is the centripetal force acting towards center of circle Vertical force is M x G To get angle, its inverse Tan (MV^2/RMG)
Saturday, October 6, 2012 at 11:07pm by Thien

AP Physics
While two forces act on it, a particle is to move at the constant velocity v = (3 m/s) i - (4 m/s) j. One of the forces is F1 = (2 N) i + (- 6 N) j. What is the other force? ( _____ N) i + ( _____ N) j Only two horizontal forces act on a 3.0 kg body that can move over a ...
Thursday, November 13, 2008 at 8:39pm by J

11th grade Physics
Consider a situation in which your car, when coasting down a straight downhill road, acquires a constant velocity. In this situation: a. gravity is the only force on the car b. friction is the only force acting on the car c. the net force acting on the car is zero d. there ...
Friday, November 5, 2010 at 11:25am by Krys

Physics
A charged particle is moving downward with an initial speed of 5 × 106m/s when it encounters a uniform magnetic field that points east to west. (a) If the initial force on the particle is to the north, is the particle positive or negative? (b) If B = .25 T and the ...
Thursday, March 21, 2013 at 4:17pm by Lindsey

physics
A 13 N force with a fixed orientation does work on a particle as the particle moves through displacement . What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +9.19 J and (b) -9.19 J?
Wednesday, October 17, 2012 at 4:19pm by Science

Physics
Use Coulombs' Law: F=k(q1)(q2)/(r)^2 ***(q1 and q2 are the absolute values--so the sign is positive even if the given value is negative) ***K is the constant: 8.99 x 10^9N*m^2/C^2 ***r is the radius The question wants you to find the net force acting on the center particle...
Friday, August 31, 2007 at 7:54pm by Ashley H

angular momentum
a 8.20 kg particle P has a position vector of magnitude 6.90 m and angle θ1 = 42.0° and a velocity vector of magnitude 6.70 m/s and angle θ2 = 25.0°. Force , of magnitude 8.90 N and angle θ3 = 28.0° acts on P. All three vectors lie in the...
Wednesday, May 30, 2012 at 10:02pm by jose

physics
A 14 N force with a fixed orientation does work on a particle as the particle moves through displacement d = (2i - 4j + 3k) m. What is the angle between the force and the displacement if the change in the particle's kinetic energy is (a) +7.54 J and (b) -7.54 J?
Monday, October 18, 2010 at 10:51am by Sam

Physics
the only force acting on the rocket in the time its in the air is gravity. so the force acting against it (the force that propels it) is the force coming out of the rocket's exhaust which is greater than gravity.
Sunday, November 14, 2010 at 11:33pm by Anne

physics
Place particle D where the force due to that particle, upon A, cancels the vector sum of the B and C particle's forces on A.
Sunday, January 2, 2011 at 5:38pm by drwls

physics
If the force of friction acting on a sliding crate is 79 N, how much force must be applied to maintain a constant velocity? 79N so... What will be the net force acting on the crate? What will be the acceleration?
Sunday, October 2, 2011 at 3:20pm by Audrey

college physics
In the figure below, two point particles are fixed on an x axis separated by a distance d. Particle A has mass mA and particle B has mass 2.00mA. A third particle C, of mass 90.0mA, is to be placed on the x axis and near particles A and B. In terms of distance d, at what x ...
Sunday, October 11, 2009 at 11:12pm by Jeff

Physics
The charged particle on the incline stays in the middle because the electrstatic force of repulsion balances the gravitational force acting along the incline downwards. If the distance between the charged particles is x: k Q^2/x^2 = mg*(sin21deg) here k =1/4*pi*epsilon0 ...
Wednesday, June 13, 2012 at 11:21pm by ajayb

physics
Two force vectors F1 = (2.5 N) x - (3.0 N) y and F2 = - (6.0 N) x + (4.8 N) y are applied to a particle. What third force F3 would make the net, or resultant, force on the particle zero? Magnitude ___ N Direction ___° (from the +x axis)
Tuesday, October 26, 2010 at 9:18pm by rachel

physics
Two force vectors F1 = (2.5 N) x - (3.0 N) y and F2 = - (6.0 N) x + (4.8 N) y are applied to a particle. What third force F3 would make the net, or resultant, force on the particle zero? Magnitude ___ N Direction ___° (from the +x axis)
Tuesday, October 26, 2010 at 9:05pm by rachel

Physics
On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.80 m/s2. What is the net force acting on the car? I have determined: 1) the force acting on the car by the trailer is 972 N. 2) The force acting on the trailer by the car is ...
Monday, January 18, 2010 at 3:58pm by Robert C

Physics
On vacation, your 1300 kg car pulls a 540 kg trailer away from a stop light with an acceleration of 1.80 m/s2. What is the net force acting on the car? I have determined: 1) the force acting on the car by the trailer is 972 N. 2) The force acting on the trailer by the car is ...
Sunday, January 17, 2010 at 9:17pm by Bobby C

Calculus (Momentum and Force)
The change in the momentum of an object (Ä p) is given by the force, F, acting on the object multiplied by the time interval that the force was acting: Ä p = F Ät . If the force (in newtons) acting on a particular object is given by F(t)=cost , what’s the ...
Tuesday, March 13, 2012 at 2:15pm by Casablanca

Mechanics
A force of 25N causes an acceleration of 2m/s^2 when acting on a 7kg mass. What is the frictional force also acting? If body is moving then frictional force is at its maximum. acceleration in direction of friction is -2 M=7. a=-2 F= frictional force opposing movement F=Ma F= ...
Sunday, February 4, 2007 at 11:31am by Janine

science(physics)
a force f= 3i+cj+2k acting on a particle causes displacement , d=-4i+2j+3k. If the work done is 6 joule then the value of c. Plz. Solve
Friday, June 10, 2011 at 1:30am by marley

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
1)Three positive particles of charges 9µC are located at the corners of an equilateral triangle of side 15cm. Calculate the magnitude and direction of the force on each charge. 2)What is the electric field strength at a point in space where a proton (m = 1.67 x 10-27 kg...
Thursday, February 22, 2007 at 3:54pm by Nat

Physics
A particle of mass 5.0 kg is under the influence of 2 forces. If the particle is accelerating at a rate of +4.0 m/s2, and the first force is +25 N, what is the second force?
Thursday, December 8, 2011 at 7:57pm by Anonymous

Physics
A 0.500 kg particle moves in a circle of R=0.0150 m at constant speed. The time for 20 complete revolutions is 31.7 s. What is the period T of the motion? What is the speed of the particle? What is the centripetal acceleration of the particle? What is the centripetal force on ...
Tuesday, March 5, 2013 at 4:59am by Nancy

Physics
A force of 38 newtons is acting on an object making an angle of 65º with the horizontal. What is the value component of the force acting along the y-axis?
Friday, March 30, 2012 at 12:13pm by LinaBina

physics
the drawing below shows three vectors acting on a particle. If the acceleration of the particle is zero. Find the magnitude and the angle respect to the east of the third vector.
Tuesday, January 4, 2011 at 9:02pm by Luna

physics
A 5.0 kg book is sitting on a table. Which describes the force acting on the book a. there are no forces acting on the book b. the force of the table upward is greater than the force of gravity downward c. the net force on the book is zero d. kinetic energy counteracts the ...
Friday, February 26, 2010 at 12:10pm by frank

physics
A 0.69 kg mass is observed to accelerate at 8.16 m/s2 in a direction 30.5° north of east. There is a force directed north acting on the object and a force directed east acting on the object. What is the magnitude of the force acting east on the object?
Wednesday, November 3, 2010 at 11:56am by rob

physics
A 0.69 kg mass is observed to accelerate at 8.16 m/s2 in a direction 30.5° north of east. There is a force directed north acting on the object and a force directed east acting on the object. What is the magnitude of the force acting east on the object?
Wednesday, November 3, 2010 at 11:56am by rob

physics
A 0.69 kg mass is observed to accelerate at 8.16 m/s2 in a direction 30.5° north of east. There is a force directed north acting on the object and a force directed east acting on the object. What is the magnitude of the force acting east on the object?
Wednesday, November 3, 2010 at 11:56am by rob

physicssss
A 0.69 kg mass is observed to accelerate at 8.16 m/s2 in a direction 30.5° north of east. There is a force directed north acting on the object and a force directed east acting on the object. What is the magnitude of the force acting east on the object?
Wednesday, November 3, 2010 at 11:31am by rob

Physics
A 2.03 kg mass is observed to accelerate at 8.82 m/s2 in a direction 28.8° north of east. There is a force directed north acting on the object and a force directed east acting on the object. What is the magnitude of the force acting east on the object?
Monday, November 1, 2010 at 4:34pm by Mike

Physics
Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 12.0e. Particle 3 of charge q3 = +13.0e is initially on the x axis near particle 2. Then particle 3 is gradually moved in the positive direction ...
Friday, January 20, 2012 at 3:38pm by Phil

Physics
Figure (a) shows charged particles 1 and 2 that are fixed in place on an x axis. Particle 1 has a charge with a magnitude of |q1| = 12.0e. Particle 3 of charge q3 = +13.0e is initially on the x axis near particle 2. Then particle 3 is gradually moved in the positive direction ...
Friday, January 20, 2012 at 2:07pm by Phil

physics
3) A 5.0 kg book is sitting on a table. Which describes the force acting on the book a. there are no forces acting on the book b. the force of the table upward is greater than the force of gravity downward c. the net force on the book is zero d. kinetic energy counteracts the ...
Tuesday, February 23, 2010 at 5:10pm by amber

physics
A particle of charge Q is fixed at the origin of an xy coordinate system. At t = 0 a particle (m = 0.690 g, q = 4.75 µC) is located on the x axis at x = 20.0 cm, moving with a speed of 50.0 m/s in the positive y direction. For what value of Q will the moving particle ...
Thursday, February 11, 2010 at 8:41am by Sandhya

physics
I suspect your teacher is wanting is increases, but she should have put a constant net force can ... The force under my rear in this chair is constant, and acts for long periods, but it is not imparting any impulse to my mass. Why? Because the force acting is equal and ...
Wednesday, January 5, 2011 at 8:15pm by bobpursley

physics
A particle moves along a straight path through displacement i = (2.2 m) + c while force = (3.2 N) - (3.8 N) acts on it. (Other forces also act on the particle.) What is the value of c if the work done by on the particle is (a) zero, (b) 3.2 J, and (c) -7.3 J?
Monday, October 18, 2010 at 2:20pm by Sam

physics
A 2.0 kg particle is moving along the x axis to the left with a velocity of v= -6.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the particle at t=4.0 s. Is ...
Monday, November 23, 2009 at 10:39pm by julia

physics
A 2.0 kg particle is moving along the x axis to the left with a velocity of v= -6.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the particle at t=4.0 s. Is ...
Monday, November 23, 2009 at 10:39pm by Ashley

physics
The vector position of a 3.80 g particle moving in the xy plane varies in time according to the following equation. r1=(3i+3j)t+2jt^2 At the same time, the vector position of a 5.35 g particle varies according to the following equation. r2=3i-2it^2-6jt For each equation, t is ...
Saturday, February 13, 2010 at 2:09pm by ucieng

Physics
The vector position of a 3.80 g particle moving in the xy plane varies in time according to the following equation. r1=(3i+3j)t+2jt^2 At the same time, the vector position of a 5.35 g particle varies according to the following equation. r2=3i-2it^2-6jt For each equation, t is ...
Friday, February 12, 2010 at 10:51pm by ucieng

Physics
At the moment t=0 a particle starts moving along thr x-axis so that its velocity projection varies as vx= 35 cos pi t cm/s, where 't' is expressed in seconds. Find the distance that this particle covers during t = 2.80 s after the start.
Friday, February 17, 2012 at 4:31am by Mike

calculus
Could someone help me draw these vectors? These things confuse me. A force of 42 newtons acting on an object at an angle of 53 degrees with the ground A force of 342 lbs. acting on an object while a force of 454 pounds acts on the same object an angle of 94 degrees with the ...
Sunday, February 21, 2010 at 1:23pm by Jim

physics
A particle of mass 1 kg initially at rest is displaced along the x-axis by 127 meters in a time of 20 seconds. What is the net force acting on the mass?
Tuesday, December 6, 2011 at 6:38pm by Anonymous

physics
a horizontal force of 8.0 N is used to pull a 20-N wooden box moving toward the right along a horizontal,wood surface,as shown.The diagram below shows the vector force acting representing the normal force acting on the box
Sunday, October 24, 2010 at 3:33pm by jobelle

physics
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a positive magnitude of 6.7N; a second force has a magnitude of 4.6 N and points in the negative y direction. (1)"Find magnitude of the ...
Friday, October 24, 2008 at 6:29pm by john

physics
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction and has a positive magnitude of 6.7N; a second force has a magnitude of 4.6 N and points in the negative y direction. (1)"Find magnitude of the ...
Friday, October 24, 2008 at 6:29pm by john

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