A rifle bullet is fired at an angle of 30° below the horizontal with an initial velocity of 800 m/s from the top of a cliff 80 m high. How far from the base of the cliff does it strike the level ground below?
What will be an ideal response?
138 m
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a. True b. False Indicate whether the statement is true or false
A moving particle is subject to conservative forces only. When its kinetic energy decreases by 10 J, what happens to its mechanical energy?
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A galvanometer has an internal resistance of 100 ? and deflects full-scale at 2.00 mA. What size resistor should be added to it to convert it to a milliammeter capable of reading up to 4.00 mA?
A) 100 ? in series B) 100 ? in parallel C) 50.0 ? in parallel D) 50.0 ? in series