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A 204.7 kg satellite is in a circular orbit of 22,000 miles (35,405,000 m) in radius. The force keeping the satellite in orbit is 49.8 N. What is the velocity (speed) of the satellite?
In the Bohr theory of the hydrogen atom, an electron moves in a circular orbit about a proton with a radius of .53 x 10^6. What is the distance of closest approach?
A submarine of mass 2.88 x 106 kg and initially at rest fires a torpedo of mass 251 kg. The torpedo has an initial speed of 105 m/s. What is the initial recoil speed of the submarine
while crossing campus you get your directions mixed up. you start traveling 272 m east you then travel 103 m traveling
A train moving with constant velocity travels 180north in 12 and an undetermined distance to the west. The speed of the train is 36 M/S^2. Find the direction of the train's motion relative to north
q1. in a car lift the output plunger has a radius of 9cm. the weight of the plunger and the car is 21600n. what is the
Suppose the work function for a particular metal is 5.09 eV. Find the cut-off frequency for this metal
You look up towards the moon which is at a distance of 380000 km from you. The pupil of your eye has a diameter of 3mm. What is the minimum distance between two objects
A large spherical shell with a mass of 145 kg and radius of 1.5m isinitially spinning at a rate of 30.0 rpm. A maintenance workersprays a protective coating on it, which adds 5.00 kg to its totalmass.
A propeller is modeled as five identical uniform rods extending radially from its axis. The length and mass of each rod are 0.793 m and 2.97 kg, what is its rotational kinetic energy
A 3500 kg parked car, with brakes off and free to move, What percentage of the kinetic energy is lost in the collision
Explain why the notion of correlation makes no sense in the case of random variables measured on the nominal scale.
A spring length of 40 cm, if given a force of 200N, increased spring length of 8 cm. Then spring is cut into two equal parts, and both parallelized. How much effort is needed so that the spring is still increasing length of 8 cm, when installed in pa..
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