Thursday

April 17, 2014

April 17, 2014

Number of results: 45,824

**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**

A 1.6 kg particle moving along the x-axis experiences the force shown in the figure. The particle's velocity is 4.2 m/s at x = 0 m. The figure or graph has F (N) along the y axis and velocity along the x axis. A diagonal line drops from positive 10 force to -10 force from 0 cm...
*Tuesday, December 1, 2009 at 6:36pm by Hope*

**Physic**

A 10 kg particle moving along the x-axis experiences the force shown in figure. The particle goes from v=1.0m/s at x=0 and v=5.0 m/s at x=2. What is the f max?
*Tuesday, October 30, 2012 at 2:18pm by J*

**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**

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**

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**

A particle starts from the origin at t = 0 and moves along the positive x axis. A graph of the velocity of the particle as a function of the time is shown in the figure; the v-axis scale is set by vs = 7.0 m/s. (a) What is the coordinate of the particle at t = 5.0 s? (b) What ...
*Wednesday, February 5, 2014 at 2:09pm by Robin*

**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**

A 1.6 kg particle moving along the x-axis experiences the force shown in the figure. The particle's velocity is 4.2 m/s at x = 0 m. The figure or graph has F (N) along the y axis and velocity along the x axis. A diagonal line drops from positive 10 force to -10 force from 0 cm...
*Wednesday, December 2, 2009 at 6:15am by Hope*

**physics**

The location of two particles at t = 0 is shown in the figure below. The particles are initially at rest. Each particle is subject to a constant force, as indicated in the figure. (Take m1 = 2.06 kg and m2 = 0.95 kg.) (a) Find the position of the center of mass at t = 0. xcm...
*Thursday, February 10, 2011 at 4:25pm by Anonymous*

**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**

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 = -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**

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 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*

**physics**

The three forces shown in the figure below act on a particle (with F1 = 48.0 N, F2 = 58.0 N, θ1 = 63.0°, and θ2 = 27.0°). If the particle is in translational equilibrium, find F3, the magnitude of force 3 and the angle θ3. F3 = 1 N θ3 = 2° (counterclockwise...
*Saturday, February 21, 2009 at 1:22am by kj*

**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 4.00mA. A third particle C, of mass 96.0mA, is to be placed on the x axis and near particles A and B. In terms of distance d, at what x ...
*Wednesday, November 17, 2010 at 4:12pm by Alex*

**calculus**

a particle moves along the x-axis (units in cm) its initial position at t=0 sec is x(0)=15. the figure shows the graph of the particle's velocity v(t). the numbers are areas of the enclosed regions. in the graph 0 to a is 4 under the x-axis, a to b is 5 above the x-axis, b to ...
*Wednesday, April 28, 2010 at 5:49pm by shelby*

**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**

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**

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*

**AP Physics C**

One dimension. In the figure, two point particles are fixed on an x axis separated by distance d. Particle A has mass mA and particle B has mass 5.00 mA. A third particle C, of mass 62.0 mA, is to be placed on the x axis and near particles A and B. In terms of distance d, at ...
*Friday, January 24, 2014 at 11:51am by Tabetha*

**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**

Several forces act on a particle as shown in the figure below (where F1 = 75.0 N, F2 = 65.0 N, θ1 = 25.0° and θ2 = 74.0°, . If the particle is in translational equilibrium, what are the values of F3 (the magnitude of force 3) and θ3 (the angle that force 3 makes...
*Thursday, May 27, 2010 at 10:25pm by Larissa*

**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**

A 10 g particle has the potential energy shown in a graph with the y-axis label U(J) and the x axis is labeled in cm. There is a diagonal line from 4 J down to 1 cm and the line levels out on the x axis to 3 cm and rises again to a height of 2 J at 5 cm and levels out to 7 cm ...
*Wednesday, December 2, 2009 at 6:12am by Ashley*

**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 2.9 kg body is at rest on a frictionless horizontal air track when a horizontal force F acting in the positive direction of an x axis along the track is applied to the body. A stroboscopic graph of the position of the body as it slides to the right is shown in the figure. ...
*Thursday, July 22, 2010 at 12:29pm by Dave*

**physics**

In the figure, particle A moves along the line y = 29 m with a constant velocity of magnitude 3.5 m/s and parallel to the x axis. At the instant particle A passes the y axis, particle B leaves the origin with zero initial speed and constant acceleration of magnitude 0.44 m/s2...
*Sunday, September 12, 2010 at 11:40pm by Anonymous*

**Physics**

In the figure, particle A moves along the line y = 26 m with a constant velocity of magnitude 2.6 m/s and parallel to the x axis. At the instant particle A passes the y axis, particle B leaves the origin with zero initial speed and constant acceleration of magnitude 0.31 m/s2...
*Tuesday, September 21, 2010 at 12:58pm 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 the ...
*Tuesday, September 22, 2009 at 12:29am by jeff*

**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 the ...
*Tuesday, September 22, 2009 at 1:55am by richard*

**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 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*

**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**

The force shown in the figure below is the net eastward force acting on a ball. The force starts rising at t=0.020 s, falls back to zero at t=0.062 s, and reaches a maximum force of 55 N at the peak. Determine with an error no bigger than 25% (high or low) the magnitude of the...
*Wednesday, October 13, 2010 at 11:30pm by jaz*

**Physics - Electromagnetism**

This is the last question for a final exam preparation sheet and I can't figure out the answer. Any help would be greatly appreciated. Thank you. - One very long wire carries current 10.0 A to the left along the x axis. A second very long wire carries current 75.0 A to the ...
*Wednesday, July 25, 2012 at 2:17pm by Robert*

**Science ( Need help really bad Please!)**

An object's weight is dependent upon its location in the universe. Why is this true? A. This is true because weight is the magnitude of gravitational force acting on an object, and since gravitational force varies in different places in the universe, weight also varies. B. ...
*Thursday, February 13, 2014 at 1:26pm by Julie*

**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**

A box of mass 65 kg hangs motionless from two ropes, as shown in the diagram above. The angle is 40 degrees. Choose the box as the system. The x-axis runs to the right, the y-axis runs up, and the z-axis is out of the page. What is the y-component of the gravitational force ...
*Monday, January 17, 2011 at 2:01pm by freddy*

**Physics **

Moving in the x-direction, a particle carrying 1.0uC experiences no force. Moving with speed v at 30 degrees to the x-axis, the particle experiences a force of 2.0 N. What is the magnitude of the force it would experience if it moved along the y-axis with speed v?
*Tuesday, October 8, 2013 at 11:20pm by Anonymous *

**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**

U(J) 6 | | 4 | \ | 2 \ ______/ \ / \_____/ 0 1 3 5 7 8 x(cm) Best I could do in drawing a graph!! A 10 g particle has the potential energy shown in the figure above. Part A: How much work does the force do as the particle moves from 2 cm to 6 cm? W = ? J Part B: What speed ...
*Tuesday, December 1, 2009 at 6:01pm by Ashley*

**physics**

The force shown in the figure below is the net eastward force acting on a ball. The force starts rising at t=0.012 s, falls back to zero at t=0.062 s, and reaches a maximum force of 35 N at the peak. Determine with an error no bigger than 25% (high or low) the magnitude of the...
*Wednesday, July 2, 2008 at 10:15pm by Elisa*

**PHYSICS**

3. A particle of mass m= 5.00 kg is released from point A(at rest) and slides on the frictionless track shown in Figure below. Determine: ( 8 marks ) a. the particleâ€™s speed at points B and C and (4marks) b. the net work done by the gravitational force in moving the ...
*Saturday, April 27, 2013 at 2:57am by VICTOR LAKAKI*

**Physics**

The figure gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 14.0 m/s2. At t = -2.0 s, the particle's velocity is 11.0 m/s. What is its velocity at t = 6.0 s?
*Friday, January 24, 2014 at 2:38pm by laken*

**Physics**

Figure 2-41 gives the acceleration a versus time t for a particle moving along an x axis. The a-axis scale is set by as = 13.0 m/s2. At t = -2.0 s, the particle's velocity is 10.0 m/s. What is its velocity at t = 6.0 s?
*Sunday, September 18, 2011 at 11:37am by Linda*

**physics**

A 10 g particle has the potential energy shown in a graph with the y-axis label U(J) and the x axis is labeled in cm. There is a diagonal line from 4 J down to 1 cm and the line levels out on the x axis to 3 cm and rises again to a height of 2 J at 5 cm and levels out to 7 cm ...
*Wednesday, December 2, 2009 at 10:52pm by Ashley*

**Physics**

The three forces shown in the figure below act on a particle (with F1 = 50.0 N, F2 = 60.0 N, θ1 = 60.0°, and θ2 = 30.0°). If the particle is in translational equilibrium, find F3, the magnitude of force 3 and the angle θ3.
*Sunday, February 10, 2013 at 1:30pm by Nerise*

**Physics**

The force on a particle is directed along an x axis and given by F = 1.7(x/2.8 - 0.95) where x is in meters and F is in Newtons. Find the work done by the force in moving the particle from x = 0 to x = 6.9 m.
*Saturday, March 8, 2014 at 11:32pm by Robin*

**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*

**Calc**

a partial moves along the x-axis so that its velocity at time t, for 0< = t = < 6, is given by a differentiable function v whose graph is shown above. The velocity is 0 at t=0, t=5, and the graph has horizontal tangents at t=4. the areas of the regions bounded by the t-...
*Monday, May 19, 2008 at 11:55pm by sammy*

**help math**

a partial moves along the x-axis so that its velocity at time t, for 0< = t = < 6, is given by a differentiable function v whose graph is shown above. The velocity is 0 at t=0, t=5, and the graph has horizontal tangents at t=4. the areas of the regions bounded by the t-...
*Tuesday, May 20, 2008 at 10:44pm by dave*

**Physics**

One component of a magnetic field has a magnitude of 0.080 T and points along the +x axis, while the other component has a magnitude of 0.034 T and points along the -y axis. A particle carrying a charge of +1.00 10-5 C is moving along the +z axis at a speed of 3.60 103 m/s. (a...
*Monday, February 6, 2012 at 5:10pm by DCM*

**Physics (due soon!)**

One component of a magnetic field has a magnitude of 0.080 T and points along the +x axis, while the other component has a magnitude of 0.034 T and points along the -y axis. A particle carrying a charge of +1.00 10-5 C is moving along the +z axis at a speed of 3.60 103 m/s. (a...
*Tuesday, February 7, 2012 at 5:54pm by DCM*

**Physics**

One component of a magnetic field has a magnitude of 0.0445 T and points along the +x axis, while the other component has a magnitude of 0.0725 T and points along the -y axis. A particle carrying a charge of +1.01 × 10-5 C is moving along the +z axis at a speed of 4.18 × 103 ...
*Monday, February 25, 2013 at 5:28pm by Anonymous*

**Physics**

One component of a magnetic field has a magnitude of 0.0445 T and points along the +x axis, while the other component has a magnitude of 0.0725 T and points along the -y axis. A particle carrying a charge of +1.01 × 10-5 C is moving along the +z axis at a speed of 4.18 × 103 m...
*Tuesday, February 26, 2013 at 8:21pm by Anonymous*

**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**

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*

**college**

The arm in the figure below weighs 44.5 N. The force of gravity acting on the arm acts through point A. Determine the magnitudes of the tension force t in the deltoid muscle and the force s of the shoulder on the humerus (upper-arm bone) to hold the arm in the position shown.
*Friday, November 6, 2009 at 3:32pm by sarah*

**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 emergerncyy!**

A particle of mass m1 = 2.5 kg moving along the x axis collides with a particle of mass m2 = 4.7 kg initially at rest. The incoming particle is deflected in the direction 24 degrees above the x axis, whereas the target particle moves off at 14 m/s at 39 degrees below the x ...
*Saturday, November 19, 2011 at 11:23pm by joe*

**Physics **

F1 and F2 are two horizontal forces of 70 N each, acting on a wagon. They are at 45° to the x-axis and at right angles to each other. A third force, F3, also 70 N, acts along the positive x-axis. What if, instead, F2 acted in the opposite direction from what is shown? Find the...
*Sunday, September 23, 2012 at 8:48pm by arcos15*

**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 execute ...
*Thursday, February 11, 2010 at 8:41am by Sandhya*

**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*

**physics**

The figure shows part of a circuit in which two wire segments are carrying currents as shown. The segment along the z-axis has length 4.0 m and that along the y-axis is 2.5 m long. Under the presence of an externally applied magnetic field B of magnitude 0.7T and makes an ...
*Tuesday, May 28, 2013 at 2:34am by shosh*

**physics**

The force shown in the force-time diagram in Figure P6.11 acts on a 1.4 kg object. (a) Find the impulse of the force. (b) Find the final velocity of the mass if it is initially at rest. (c) Find the final velocity of the mass if it is initially moving along the x axis with a ...
*Monday, July 7, 2008 at 8:15pm by Elisa*

**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**

In Figure (a), a block of mass m lies on a horizontal frictionless surface and is attached to one end of a horizontal spring (spring constant k) whose other end is fixed. The block is initially at rest at the position where the spring is unstretched (x = 0) when a constant ...
*Saturday, October 24, 2009 at 8:28pm by Jin*

**physics**

A person pushes with force F on a box which remains at rest on a rough floor as shown in the top figure. The bottom figures illustrates all the force acting on the box. a) What condition must be satisfied by all the force acting on the box so that it remains at rest? Draw a ...
*Friday, April 5, 2013 at 1:13am by /*

**physics**

One dimension. In Fig. 13-32, two point particles are fixed on an x axis separated by distance d. Particle A has mass mA and particle B has mass 4.00 mA. A third particle C, of mass 80.0 mA, is to be placed on the x axis and near particles A and B. In terms of distance d, at ...
*Tuesday, December 6, 2011 at 9:26pm by Dan*

**physics**

One dimension. In Fig. 13-32, two point particles are fixed on an x axis separated by distance d. Particle A has mass mA and particle B has mass 4.00 mA. A third particle C, of mass 80.0 mA, is to be placed on the x axis and near particles A and B. In terms of distance d, at ...
*Tuesday, December 6, 2011 at 9:26pm by Dan*

**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 this ...
*Monday, November 23, 2009 at 10:39pm by julia*

**physics**

A particles has a mass of 0.5 kg and a velocity of 734 m/s along the x axis when a force of 21 N along the y axis acts on the particle at right angles to the velocity. The acceleration of the particle is ____ m/s2
*Tuesday, September 21, 2010 at 9:47pm by Anonymous*

**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 this ...
*Monday, November 23, 2009 at 10:39pm by Ashley*

**physics**

Two particles are fixed on an x axis. Particle 1 of charge 47.9 μC is located at x = -5.87 cm; particle 2 of charge Q is located at x = 32.3 cm. Particle 3 of charge magnitude 52.8 μC is released from rest on the y axis at y = 15.1 cm. What is the value of Q if the ...
*Thursday, December 13, 2012 at 10:47am by Anonymous*

**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 = 7.00 m, calculate the following.
*Tuesday, February 23, 2010 at 9:17am by gina*

**College Physics**

particle 1 of charge q1 = 1.04 ìC and particle 2 of charge q2 = -2.99 ìC, are held at separation L = 10.8 cm on an x axis. If particle 3 of unknown charge q3 is to be located such that the net electrostatic force on it from particles 1 and 2 is zero, what must be the (a)x and...
*Friday, July 6, 2012 at 10:38pm by Stephanie13*

**Physics-Help please...**

The graph give the acceleration a versus time t for a particle moving along an x axis. The a axis scale set by a=12 m/s^2. At t = -2s the particle's velocity is 10 m/s. What is its velocity at t = 6s. I know that I am supposed to used integrals to solve, but I can't figure it ...
*Saturday, October 1, 2011 at 8:35pm by Belinda*

**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. Please ...
*Sunday, November 22, 2009 at 9:29pm by Maggie*

**General Physics **

A force Fx acts on a particle. The force is related to the position of the particle by the formula Fx = (5.9 N/m3) x3. Find the work done by this force on the particle as the particle moves from x = 0.9 m to x = 22 m. Answer in units of J
*Friday, July 26, 2013 at 1:17pm by Charles*

**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 - 2it^2 - 6jt>...
*Thursday, December 1, 2011 at 2:19pm by LadyJ*

**calculus**

The force on a particle is described 1 at a point x along the x-axis. Find the work done in moving the particle from the origin to x=3
*Thursday, June 2, 2011 at 10:22pm by Kim*

**Physics**

A box is being pushed to the left parallel to the x-axis by a force of 23.0 N. A rope provides a second force of 33.8 N on the box, directed to the right at an angle of 39.0 deg. from the x-axis. What is the magnitude of the net force acting on the box ?
*Tuesday, November 20, 2012 at 1:21pm by Zack*

**Physics**

Four point charges are at the corners of a square of side a as shown in the figure below. Determine the magnitude and direction of the resultant electric force on q, with ke, q, and a left in symbolic form. (B = 4q and C = 6.5q. Let the +x-axis be pointing to the right.) F = ...
*Saturday, March 30, 2013 at 11:14am by Sofia*

**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 this ...
*Tuesday, November 24, 2009 at 5:26am by Julia *

**physics**

A 1310-kg racecar is driving around a circular track of radius 153 m. In the instant shown in the figure, the vehicle has a forward speed of 31.7 m/s and is slowing at a rate of 5.35 m/s2. What is the magnitude of the net force acting on the vehicle at this time and the force...
*Wednesday, October 9, 2013 at 1:03pm by kg90*

**physics**

Figure shows an overhead view of a 0.026 kg lemon half and two of the three horizontal forces that act on it as it is on a frictionless table. Force F1 has a magnitude of 4 N and is at ¥è1 = 27¢ª. Force F2 has a magnitude of 6 N and is at ¥è2 = 25¢ª. If the lemon half is ...
*Wednesday, January 26, 2011 at 4:05pm by jr*

**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 particle. The ...
*Wednesday, September 12, 2012 at 11:37pm by Anonymous*

**physics**

One component of a magnetic field has a magnitude of 0.046 T and points along the +x axis, while the other component has a magnitude of 0.066 T and points along the -y axis. A particle carrying a charge of +7.50*10^-5 C is moving along the +z axis at a speed of 3.20*10^3 m/s...
*Monday, February 26, 2007 at 11:26am by Anna*

**Physics**

I need immediate help on these questions:. 2.a small plastic ball with a mass of 0.005kg is suspended from a thread and hangs in equilibrium as shown in the drawing below when a small rod with a 2 uC charge is brought to within 3mm of the ball a)find the tension force in the ...
*Sunday, March 30, 2014 at 11:55pm by Julie*

**physics**

A person holds a 1.42N baseball in his hand, a distance of 34.0cm from the elbow joint, as shown in the figure . The biceps, attached at a distance of 2.75cm from the elbow, exerts an upward force of 12.6N on the forearm. Consider the forearm and hand to be a uniform rod with ...
*Saturday, October 29, 2011 at 5:55pm by B*

**Physics**

Consider a coin which is tossed straight up into the air. After it is released it moves upward, reaches its highest point and falls back down again. Air resistance can be neglected. What force acts upon the coin when it is at its highest point? a. Force acting up and ...
*Sunday, June 30, 2013 at 5:10pm by Laura*

**physics**

The velocity graph of a particle moving along the x-axis is shown. The particle has zero velocity at t=0.00 s and reaches a maximum velocity, vmax, after a total elapsed time, ttotal. If the initial position of the particle is x0=7.28 m, the maximum velocity of the particle is...
*Tuesday, January 25, 2011 at 11:53pm by Markus*

**Physics**

If we take a point of reference that is a certain distance away from where the force is applied and the force is acting on the same axis as the distance axis i.e. the force vector and the distance vector are on the same axis, only in opposite directions, would the torque of ...
*Tuesday, November 10, 2009 at 9:14pm by Nancy*

**physics help**

particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it reaches x = 0, it undergoes a one-dimensional elastic collision with stationary particle 2 of mass m2 = 0.40 kg. When particle 2 then reaches a wall at xw...
*Friday, March 26, 2010 at 10:52am by mike*

**physics help**

particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it reaches x = 0, it undergoes a one-dimensional elastic collision with stationary particle 2 of mass m2 = 0.40 kg. When particle 2 then reaches a wall at xw...
*Friday, March 26, 2010 at 7:34pm by beav*

**physics**

particle 1 of mass m1 = 0.29 kg slides rightward along an x axis on a frictionless floor with a speed of 1.8 m/s. When it reaches x = 0, it undergoes a one-dimensional elastic collision with stationary particle 2 of mass m2 = 0.40 kg. When particle 2 then reaches a wall at xw...
*Monday, March 29, 2010 at 8:16pm by mike*

**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 1**

A car is pushed along a long road that is straight, horizontal, and parallel to the x direction. a)The horizontal force on the car varies with x as shown in the figure. What is the work done on the car by this force? (Let a = 100 N.) _____J b)What is the work done by gravity ...
*Monday, October 8, 2012 at 8:37pm by John *

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