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Get college assignment help at uniessay writers A solenoid is designed to produce a magnetic field of 3.70×10−2 at its center. It has a radius of 1.00 and a length of 41.0 , and the wire can carry a maximum current of 15.0 .

A 730-{rm kg} car stopped at an intersection is rear-ended by a 1800-{rm kg} truck moving with a speed of 15.5 m/s. If the car was in neutral and its brakes were off, so that the collision is approximately elastic, find the final speed of the truck. Find the final speed of the car.

A 2000 kg car starts from rest at the top of a driveway that is sloped at an angle of 20° with the horizontal. An average friction force of 4000 N impedes the car’s motion so that its speed at the bottom of the driveway is 3.8 m/s. What is the length of the driveway?

A 3.0 m long rigid beam with a mass of 105 kg is supported at each end. An 70 kg student stands 2.0 m from support 1. How much upward force does each support exert on the beam?

A 34.0-kg shell is fired from a gun with a muzzle velocity 100.0 m/s at 56.0o above the horizontal. At the top of the trajectory, the shell explodes into two fragments of equal mass. One fragment, whose speed immediately after the explosion is zero, falls vertically. What is the horizontal speed of the other fragment?

What will be the equilibrium temperature when a 223 block of copper at 290 is placed in a 140 aluminum calorimeter cup containing 824 of water at 15.1?

two soccer players start from rest, 48 meters apart. They run directly towards each other and both players are accelerating. The first player has an acceleration whose magnitude is 0.5 m/s^2 and the second player’s has an acceleration of 0.3 m/s^2. How much time passes before hey collide?

. A beam of electrons is incident on a slit of variable width. If it is possible to resolve a 1% difference in mo- mentum, what slit width would be necessary to resolve the interference pattern of the electrons if their kinetic energy is (a) 0.010 MeV, (b) 1.0 MeV, and (c) 100 MeV?

A 9900 kg boxcar traveling at 14 m/s strikes a second boxcar at rest. The two stick together and move off with a speed of 4.0 m/s. What is the mass of the second car?

A student (m=63 kg) falls freely from rest and strikes the ground. during the collision with the ground, he comes to rest in a time of .101 s. The average force exerted on him by the ground is 18000 N, where the upward direction is taken to be the positive direction. From what height did the student fall?

Get college assignment help at uniessay writers A 0.11- ball is placed in a shallow wedge with an opening angle of 150 , as shown in the figure .For each contact point between the wedge and the ball, determine the force exerted on the ball. Assume the system is frictionless. Determine the Contact force 1.

WRENCH a bold is to be tightened with a torque of 8.0 N. m. if you have a wrench that is 0.35 m long, what is the least amount of force you most exert?

A charge of 3.2 10-5 C is located at a place where there is an electric field that points due east and has a magnitude of 17500 N/C. What are the magnitude and direction of the force acting on the charge? N

An electric field with a magnitude of 152 N/C exists at a spot that is 0.18 m away from a charge. At a place that is 0.51 m away from this charge, what is the electric field strength? 1 N/C

Suppose that the electric potential outside a living cell is higher than that inside the cell by 0.066 V. How much work is done by the electric force when a sodium ion (charge = e) moves from the outside to the inside? 1 J

A hockey puck moving at 0.474 m/s collides elastically with another puck that was at rest. The pucks have equal mass. The first puck is deflected 35.8° to the right and moves off at 0.331 m/s. Find the speed of the second puck after the collision.

You drop a single coffee filter of mass 1.3 grams from a very tall building, and it takes 48 seconds to reach the ground. In a small fraction of that time the coffee filter reached terminal speed.

A 29.5 kg block is connected to an empty 1.00 kg bucket by a cord running over a frictionless pulley (Fig. 4-57). The coefficient of static friction between the table and the block is 0.500 and the coefficient of kinetic friction between the table and the block is 0.320. Sand is gradually added to the bucket until the system just begins to move. Calculate the mass of sand added to the bucket. Calculate the acceleration of the system.

A traffic light is supported by two wires, which make an angle of 80.° to each other. If the maximum tension in each wire is 750 N, what is the maximum weight of the light they can support?

A hiker’s trip consists of three segments. Path A is 6.0 km long heading 60.0° north of east. Path B is 8.0 km long in a direction due east. Path C is 5.0 km long heading 315° counterclockwise from east

a marble moving 1.48 m/s rolls off the top edge of a 125 cm high table. How far from the base of the table did it strike the floor?

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November 3, 2019