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A 50 kilogram archer, standing on frictionless ice, shoots a 40 gram arrow at a speed of 80 m/s. Evaluate what is the recoil speed of the archer?
An LC circuit has zero resistance, no battery, a capacitor C=70microFarads, and an inductor L=0.4H connected in a simple loop. The capacitor and inductor store a compined total energy of U=28microJoules.
While running, a man dissipates about 0.60 Joule of mechanical energy per step per kilogram of body mass. determine how fast is the man running
The charging circuit for the flash system of a camera uses a 130 muF capacitor that is charged from a 250V power supply. What is the most resistance that can be in series with the capacitor if the capacitor is to charge to at least 86% of its final..
a typical flute is about 66 cm long. a piccolo is very similar instrument though it is similar with a length of about
a 9.0 kg mess kit sliding on a frictionless surface explodes into two 4.5 kg parts one moving at 3.0 ms due north and
A plate carries a charge of -2.5µC, while a rod carries a charge of 1.9 µC. How many electrons must be transferred from the plate to the rod, so that both objects havethe same charge?
A capacitor is connected in series with a resistor and a switch. With the switch open, the capacitor is charged to 9.0 V. When the switch is closed, how long will it take for the voltage across the capacitor to drop to 6.0 V if the time constant of t..
a speedboat starts from rest and accelerates at 2.01 ms2 for 7.30 s. at the end of this time the boat continues for an
if you ever slapped someone or got slapped yourself you probably remember the burning sensation. imagine you had the
A certain drawbridge can be modeled as a uniform 1.60×104N bar, 10.0m long, pivoted about its lower end. When this bridge is raised to an angle of 60.0 above the horizontal, the cable holding it suddenly breaks, allowing the bridge to fall. At the..
Compute where should you put a third mass M therefore that the net gravitational force on M due to the two masses is exactly zero
Two boxes are connected by a cord running over a pulley, Calculate the tension in the cord and Calculate the acceleration of the system
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