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A speeder is pulling directly away and increasing his distance from a police car that is moving at 26.0 m/s with respect to the ground. The radar gun in the police car emits an electromagnetic wave with a frequency of 6.97E+9 Hz. The wave reflects from the speeder's car and returns to the police car, where its frequency is measured to be 331 Hz less than the emitted frequency. Calculate the speeder's speed with respect to the ground.
x-ray photons of wavelength 0.0248 nm are incident on a target and the compton-scattered photons are observed at 90
I want to put a 1500 g satellite into orbit around a spherical asteroid with a mass of 3x10^13 kg and a density of 5000 kg/m^3. Since it has no atmosphere, What is the radius of the asteroid
A race-car drive buys a car that can accelerate at +5.9m/s^2. find the distance the two drivers travel before they are side by side
A skateboarder (m = 92 kg) takes a running jump onto a friend's skateboard that is initially at rest as sketched, What was the horizontal component of the velocity of the jumping skateboarder
A 185-kg sculpture hangs from a horizontal rod that serves as a pivot about which the sculpture can oscillate. The sculpture\'s moment of inertia with respect to the pivot is 16.7 kg·m2, and when it is swung at small amplitudes, it is found to oscill..
Three uniform spheres are located at the corners of an equilateral triangle. Each side of the triangle has a length of 1.19 m. find the magnitude of the initial acceleration of the third sphere
2.00 mol of a monaromic gas at atmospheric pressure has a total internal energy of 7.48x10^3J. What is the volume occupied a rigid cylinder by the gas
A water collector on a farm roof 5m high from the ground overflows with rain through a large circular are of radius 1.2m. The water then falls through a pipe and into a tub near the ground; it exits the pipe through a .3m radius spout located .5m fro..
Suppose the image of an object is upright and magnified 1.69 times when the object is placed 14cm from a lens
Mars rotates about its axis once every 88 642 s. What is the rotational period of Mars according to the beings on the spaceship
A 2 200-kg pile driver is used to drive a steel I-beam into the ground. calculate the average force the beam exerts on the pile driver while the pile driver is brought to rest
One end of a brass bar is maintained at 298°C, while the other end is kept at a constant but lower temperature. What is the temperature of the bar at a point 0.24 m from the hot end
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