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A particle executes simple harmonic motion with an amplitude of 7.1 cm. At what displacement (in cm) from the midpoint of its motion will its speed equal one half of its maximum speed?
A spring with a spring constant of 224.8 N/m is compressed by 0.229 m. What is the speed of the ball bearing right after it loses contact with the spring
A 348 g mass is hung on a spring with a spring constant of 25 N/m. Find the stretch of the spring when the mass is in equilibrium
Find the rms voltage across each element in an RLC circuit with R = 9.2k ohm, C= 0.13 uF, and L= 25mH. kH
An AC generator is to have a maximum output of 318 V. Each coil has an area of 0.137 m2 and a resistance of 16.9 ?, How many turns of wire should the coil have to produce the desired emf
The temperature of 1.3mol of an ideal diatomic gas goes from 20?C to 57?C at a constant volume. What is the change in entropy
How many 112 W lightbulbs can you use in a 100 V circuit without tripping a 15 A circuit breaker? (The bulbs are connected in parallel, that means that the potential difference across each lightbulb is 100 V.)
What must be the radius of a circular loop of wire so the magnetic field at its center is 1.40 10-4 T when the loop carries a current of 17 A
An 8 g of ice cube at %u2013 120 C is put into a thermos flask containing 100 cm3 of tea at 850C. What is the drop in temperature for tea
A 3 kg block is observed to accelerate at a rate twice that of the 6 kg block. Is the net force acting on the 3 kg block therefore twice as large as that performing on the 6 kg block? Explain.
If an amount of heat Q_H is extracted from a hot reservoir (at temperature T_H) but is simply wasted by dumping into a cold reservoir, by how much has the entropy of the Universe increased
An object is dropped from a height of 55 m above ground level. Determine the final speed at which the object hits the ground
A Carnot engine with a hot-reservoir temperature of 360 has the same thermal efficiency. What is the cold-reservoir temperature in C?
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