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A roller coaster has a HYDRALUIC catapult propels the car to the top of the ride at a height of 405 ft. If the car and ocupants weigh 1189 lb what would be the potential energy of the car at the top in joules
A highly charged piece of metal (with uniform potential throughout) tends to spark at places where the radius of curvature is small, For that amount of charge, what is the potential of the sphere relative to infinity
A dolphin emits ultrasound at 100 kHz} and uses the timing of reflections to determine the position of objects in the water
Assuming frictionless conditions, a table has a hanging mass, m1, over a pulley at the left side and another hanging mass, m2, over a pulley on the right side.
In a large centrifuge used for training pilots and astronauts, a small chamber is fixed at the end of a rigid arm that rotates in a horizontal circle. What is the angular acceleration in the second training exercise
a two-stage missile is fired vertically from rest with acceleration as shown in the graph. in 15 sec the first stage a
A nonuniform, horizontal bar of mass 3.43 is supported by two massless wires against gravity. The left wire makes an angle 36.6 , with the horizontal, and the right wire makes an angle 62.9 .
The density of free electrons in gold is 5.90 x 10^28 m-3. The resistivity of gold is 2.44 x 10-8 at a temperature of and the temperature coefficient of resistivity is 0.004 ()-1. A gold wire, 1.30mm in diameter and 27cm long, carries a current of..
A bullet with a mass of 25.0 grams is fired into a block with a mass of 2.50 kg hanging from a string. to what height will the block and bullet go
Design a circuit to control the temperature of a water bath at a set-point temperature of 85°C. Choose a resistive sensor and draw up a circuit that will provide control around the set-point.
a calculate the shear modulus g of 1040 carbon steel.b using the shear modulus value calculated above calculate the
A beam of light in air strikes a slab of glass ( n= 1.56) and is partially reflected and partially refracted, find the angle of incidence
A spring stretches by 0.0157 m when a 3.22-kg object is suspended from its end. How much mass should be attached to this spring so that its frequency of vibration is f = 6.43 Hz
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