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A 751 kilogram satellite is in a circular orbit about the Earth at a height above the Earth equal to the Earth's mean radius.
(a) Determine what is the satellite orbital speed?
m/s
(b) Determine what is the period of its revolution.
h
(c) Determine what is the gravitational force acting on it?
N
Derive an equation for radius r of circular path that the electrons follow in terms of the magnetic field B, the electrons’ velocity v, charge e, and mass m. You may assume that the electrons move at right angles to the magnetic field.
A particle leaves the origin with an initial velocity of 4.20 m/s in the x direction, and moves with constant acceleration ax = -1.80 m/s2 and ay = 2.30 m/s2. a-How far does the particle move in the x direction before turning around? b-What is the..
A 1,200 W hair dryer is operated on a 120 V circuit for 15 minutes. If electricity costs $0.10/kW h, what was the cost of using the blow dryer.
A spherical object with a moment of inertia of 0.482mr2 starts from rest rolling down a 3.51-m high incline. what is its linear speed at the bottom of the incline
If you had two bars of iron – one magnetized and one un-magnetized – and no other material at hand, how could you determine which bar was the magnet. Explain.
A beam is attached to a vertical wall with a hinge so that the beam can be supported horizontally with a wire and a sign can hang below. What is the tension in the wire holding the sign
a 50.0-kg block is being pulled up a 13.0deg slope by a force of 250 n which is parallel to the slope. the coefficient
A wild horse starts from rest and runs in a straight line 29°north of west. After 39 s of running in this direction, the horse has a speed of 13 m/s. What is the magnitude of the horse's average acceleration?
A motorcycle has a constant speed of 20.9 m/s as it passes over the top of a hill whose radius of curvature is 125 m. Find the magnitude of the centripetal force
A coil of inductance 79 mH and unknown resistance and a 0.71 µF capacitor are associated in series with an alternating emf of frequency 850 Hz. If the phase constant among the applied voltage and the current is 75°, what is the resistance of the coil..
Tritium (31H) is an unstable isotope of hydrogen; its mass, including one electron, is 3.016049u. Determine the total kinetic energy of beta decay products
A block of mass m = 2 kg and initial velocity v = 5 m/s runs into and compresses a spring of spring constant k = 50 N/m. How long is the block in contact with the spring
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