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A 22 kg block of iron drops out of the back of a pickup truck traveling at 55 mi/h. The block slides on the road for 150 m before coming to rest. By roughly how much has the temperature of the iron increased? (Assume that it gets about one-half of the thermal energy produced by its interaction with the road)
An initially neutral conductor contains a hollow cavity in which there is a -100 nC point charge. what is the charge on the inner wall of the cavity wall
If you are going to do this, please show your work!! DO NOT just give an answer. A woman lifts a 2.00-kg weight held in her hand. find how much work does she do
The centers of a 11.0kg lead ball and a 150g lead ball are separated by 7.00cm. What gravitational force does each exert on the other
A person exerts a horizontal force of F = 175 N in the test apparatus shown in the drawing. (h = 0.25 m.) Find the horizontal force M that his flexor muscle exerts on his forearm.
An industrial laser is used to burn a hole through a piece of metal. The average intensity of the light is = 1.42 × 109 W/m2. find the magnetic field in the electromagnetic wave emitted by the lase
Two charges q1 = 7 µC, q2 = -33 µC, are L = 14 cm apart. A third charge is to be placed on the line between the two charges. How far from q1 should the third charge be placed so that the net electric force on the third charge is minimized?
A 5 kg block sits on a surface with a maximum static coefficient of friction of 0.60. A 10g bullet is fired into the block. How much kinetic energy is dissipated in the bullet/block collision
Suppose a 5.40 m diameter telescope were constructed on the Moon, what minimum separation between two objects
a meter rule hangs motionless supported at 30cm mark. It has a 0.02kg mass hanging from the 0meter mark
A parallel-plate capacitor is made from two plates 12.5 on each side and 4.70 apart. What is the capacitance of this combination
A -19 mC charge experiences a force of 60 N directed south. What is the electric field magnitude and direction at the location of the charge
A rock is dropped off the side of a bridge and hits the water below 5.7 s later. What is the height of the bridge above the water
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