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A mass of 1 kg is hung vertically from a spring stretching the spring .20 m. It is then pulled .10 m below its equilibrium position and released from rest. Find
(a) the angular frequency of oscillation
(b) the spring constant of the spring
(c) the amplitude of oscillation
(d) the kinetic energy of mass when passing through equilibrium
(e) the potential energy of the spring when the mass passes through equilibrium
(f) the time to first reach equilibrium
(g) the time to make one complete cycle.
An engine has an efficiency e1. The engine takes input heat QH from a hot reservoir and delivers work W1. The heat rejected by this engine is used as input heat for a second engine.
It is possible to produce artificial gravity on a space station by having the station rotate. Explain how this would work. What would be some benefits and drawbacks to this approach?
Find the distance from the origin on the x-axis between the charges where the electric potential due to the two point charges vanishes
water flows between two parallel plates separated by a distance of h. there is a pressure gradient along x which is constant, find the pressure gradient
imagine the water is in freefall as it drops. What charge must be on each plate.
A force F= (6x - 2y)N acts on a particle that undergoes a displacement delta r= (3x + y)m. Find (a) the work done by the force on the particle and (b) the angle between F and r.
Assume the magnitude of the charge of particle is 100 mC, its mass is 0.03 g and its velocity is 2000 m/s, What is its radius of curvature of particle in the magnetic field
A flat circle of radius 20 cm is placed in a uniform electric field of magnitude 6.6×102N/C, What is the electric flux through the circle when its face is at 30 to the field lines
After a day of testing race cars, you decide to take your own 1420 kg car onto the test track. While moving down the track at 10 m/s, you regularly accelerate to 32m/s in 10 s. What is the average net force that you have applied to car during the ..
A kid slides down from the top of a 3m high frictionless slide. When he reaches the bottom of the slide, he travels over a 2m long carpet with a 0.20 coefficient of kinetic friction, What height does he return to on the slide
A gymnast with mass m1 = 40 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 110 kg and length L = 5 m. Each support is 1/3 of the way from each end. at first the gymnast stands at the left end of..
A duck has a mass of 2.6 kg. As the duck paddles, a force of 0.11 N acts on it in a direction due east. In addition, the current of the water exerts the force of 0.12 N in a direction of 44° south of east. When these forces begin to act, the velocity..
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