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Find the total mechanical energy of a mass-spring system with m = 1.30kg and maximum speed 0.750 m/s
The resistor has a value of 10ohms, and the capacitor is 500uF. Calculate the time constant of the circuit. What is the voltage across the capacitor after the switch has been closed for one time constant
the electric field just above the surface of the charged drum of a photocopying machine has a magnitude e of 2.3 x 105
A man drags a 72.0 kg crate across the floor at a constant velocity by pulling on a strap attached to the bottom of the crate. The crate is tilted 26 degrees above the horizontal, and the strap is inclined 68 degrees above the horizontal. The center ..
ball b is hanging from an inextensible cord. an identical ball a is released from rest when it is just touching the
A baseball is hit at ground level. The ball reaches its maximum height above ground level 3.0 s after being hit. Then 2.5s after reaching its maximum height, ball barely clears a fence that is 97m from where it was hit. Suppose the ground is level..
Two children hang by their hands from the same tree branch. The branch is straight, and grows out from the tree trunk at an angle of 25.7° above the horizontal, What is the magnitude of the net torque exerted on the branch by the children
An electron that has velocity = (3.1 106 m/s) + (2.3 106 m/s) moves through a magnetic field = (0.03 T) - (0.15 T) . (a) Find the force on the electron. N (b) Repeat your calculation for a proton having the same velocity. N
two rockets are flying in the same direction and are side by side at the instant their retrorockets fire. rocket a has
You wish to observe the progress of your vacuum pump in evacuating a tall bell jar for the purpose of demonstrating that sound waves do not travel in a vacuum
A silver wire has resistivity ? = 1.96 × 10-8 ?·m and a cross-sectional area of 5.00 mm2. What is the displacement current in the wire at that time
A chimp jumps up from a trampoline and lands on the ground, 1.2 meters below. the total time taken was .095 secons. A. what is the initial velocity B. what is the final velocity C. what is the maximum height above the ground please show work so i ..
how fast is the mass moving when leaves the spring. Two forces, and , act at a point. has a magnitude of 9.00 and is directed at an angle of 65.0 degrees above the negative x axis in the second quadrant. has a magnitude of 6.00 and is directed at a..
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