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A catcher "gives" with the ball when he catches a 0.237 kg baseball moving at 28.6 m/s. If he moves his glove a distance of 4.37 cm, what is the average force acting on his hand? Answer in units of kN.
A block with a mass of 40 kg is on an inclined plane with an angle of 20 degrees. Determine the normal force on the block
A student is trying to push a desk of mass m = 95kg and horizontal width w = 0.8m along the floor. What is the minimum force necessary to move the desk
two 2.0g spheres are attached to each end of a silk thread 1.20m long. the spheres are given identical charges and the
Two objects attract each other gravitationally with a force of 2.5 * 10^-10N when they are .25m apart. There total mass is 5.00kg. Find their individual masses
The water skier is at an angle of 35o with respectto the center line of the boat, and is being pulled at a constantspeed of 14 m/s . If the tension in the tow rope is 90.0 N, (a) howmuch work does the rope do on the skier in 10.0 s?
Describe how you would shine the laser onto the glass block, what angles you would measure and how you would determine the critical angle from your measurements.
An object, which is initially at rest on a frictionless horizontal surface, is acted upon by four constant forces. How much total work is done on the object in 4.44 seconds
An aluminum rod is 18.5 centimeter long at 20°C and has a mass of 350 gram. If 10500J of energy is added to the rod by heat, evaluate the change in length of the rod
A sled weighing 100N is held in place on a frictionless 20 degree slope by a rope which is attached to a stake at the top. What is the normal force of the slope acting on the sled
The drawing shows four point charges. The value of q is3.3 μC, and the distance d is 0.80 m. Find the totalpotential at the location P. Assume that the potential of a point charge is zero at infinity.
Two small non-conducting spheres, eace of mass "m", carry an identical charge "q". what is the angle between each thread and the vertical
two charged spheres are 5.27cm apart. they are moved and the force on each of them is found to have been tripled how
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