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A highway patrol officer on the ground uses a radar gun to measure the speed of a suspect's car to be 60 m/s. a patrol car is traveling at 40 m/s relative to the ground, but is moving in the opposite direction as it approaches the car. assume that the direction in which the suspect is traveling defines the +x direction for everyone. what object should we choose to be the Home Frame for this problem? What object defines the Other Frame? What object is the object whose velocity we want to determine in both frames? Calculate the relative velocity of the suspect's car and the patrol car.
A hollow spherical shell has mass 8.00 and radius 0.225. It is originally at rest and then rotates about a stationary axis that lies along a diameter with the constant acceleration of 0.905. What is the kinetic energy of the shell after it has turned..
two converging lenses, each of focal length 15.0 cm, are placed 40cm apart, and object is placed 30cm in front of the first. what is the magnification of the system
The highest rotary speed ever attained was 2010 m/s (4500 mph). The rotating rod was 15.2 cm (6 in.) long. What is the period of rotation of the rod
given that the speed of sound in the air is 343 ms and that human ears are typically 20 cm apart what is the maximum
Two loudspeakers emit 400Hz notes. One speaker sits on the ground. The other speaker is in the back of a pickup truck, What is the truck's speed in m/s
The electric field everywhere on the surface of a charged sphere of radius 0.180 m has a magnitude of 500 N/C, What is the net charge on the sphere
A bolt comes loose from underneath an elevator that is moving upward at a speed of 4.5 m/s. How high up was the elevator when the bolt came loose
Two balls of identical mass of 0.151 kg and with identical charges placed on them hang from the ceiling on identical strings of lengths 1.510 m, what is the charge on each ball
An 81.7-g arrow is fired from a bow whose string exerts an average force of 121 N on the arrow over a distance of 78.4 cm
The temperature of a gold bar rises by 10.0°C when it absorbs 0.677 kJ of energy by heat. The mass of the bar is 525 g. Determine the specific heat of gold from these data
A person on a rotating stool with arms stretched out rotates at an angular speed of 5.00 rad/s. By what factor does the moment of inertia change
Originally, light is unpolarized. It then travels through 3 polarizers: the first with its transmission axis aligned vertical, What is the intensity of light after the third polarizer
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