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A satellite is spinning at 0.01 rev/s. The moment of inertia of the satellite about the spin axis is 2000 kg * m^2. Paired thrusters are located at a distance of 1.5 m from the spin axis. They deliver their thrust in pulses, each thruster producing an impulse of 15 N * s per pulse. At what rate will the satellite be spinning after 30 pulses?
Two equally charged, 1.00 {rm g} spheres are placed with 2.00 {rm cm} between their centers. When released, each begins to accelerate at 225 {rm m/s^2}. What is the magnitude of the charge on each sphere.
A steel rod of mass m and length L has the linear expansion coefficient X. It is standing vertically and supports a box of mass M on its top. what is the work done by the rod
A conducting rod whose length is ? = 1.60 m is placed on frictionless U-shaped metal rails that is connected to a lightbulb having a resistance of 4.00, At what rate is energy dissipated in the lightbulb
Bob throws a 500 g rock at 25 m/s, moving his hand through 1.0 m as he accelerates it from rest. Write Newton's 2nd Law for Bob and the rock
A battery (V = 2.4 V) contains E = 2.2 kJ of energy. It is connected to a P = 8 W light bulb. Input an expression for the light bulb's resistance
An 81-kg person puts on a life jacket, jumps into the water, and floats. The jacket has a volume of 3.1 *10^-2 m^3 and is completely submerged under the water. What is the density of the life jacket
In a ballistics test, a 25 g bullet traveling horizontally at 1200 m/s goes through a 35-cm-thick 350 kg stationary target and emerges with a speed of 750 m/s. What average force does it exert on the target
Two objects with masses of 2.90 kg and 8.00 kg are connected by a light string that passes over a frictionless pulley, Determine the acceleration of each object
A gymnast with mass m1 = 42 kg is on a balance beam that sits on (but is not attached to) two supports. The beam has a mass m2 = 106 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 cosmic-ray proton in interstellar space has an energy of 10.0 MeV and executes a circular orbit having a radius equal to that of Mercury’s orbit around the Sun (5.80 m). Illustrate what is the magnetic field in that region of space?
q1. laser light at 635nm falls on a double-slit apparatus with slit separation 6.910-6m. find out the separation
A 125 kg satellite experiences a gravitational force by the Earth of 790 N, What is altitude of satellite and What is the radius of the satellite's orbit
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