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A spy satellite is in circular orbit around Earth. It makesone revolution in 6.01 hours.
(a) How high above Earth's surface is the satellite?
km
(b) What is the satellite's acceleration?
m/s2
In 2.58 minutes, a ski lift raises four skiers at constant speed to a height of 132 m. What is the average power provided by the tension in the cable pulling the lift
The elastic energy stored in your tendons can contribute up to 35% of your energy needs when running. Sports scientists have studied the change in length of the knee extensor tendon in sprinters and nonathletes. They find (on average) that the sprint..
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Two capacitors are connected parallel to each other and connected to the battery with voltage 30V. By how much energy of the system decreases
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The mean free path of a molecule in a gas is 280 nm. What is the mean free path if the gas temperature is tripled at constant volume?What is the mean free path if the gas temperature is tripled at constant pressure?
A board lies on top of two uniform cylinders (with I =MR2/2) which lie on a fixed plane inclined at angleθ. what is the acceleration of the board
An iron casting containing a number of cavities weighs 16967.7 N in air and 13045.8 N in water. What is the total volume of all the cavities in the casting
A uranium and iron atom reside a distance R = 51.10 nm apart. The uranium atom is singly ionized; the iron atom is doubly ionized, What is the magnitude of the force on the electron from the uranium ion
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