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A car is traveling at 50 miles per hours. The driver sees a deer and hits the brakes. The car slows at 20 f/s^2. How long, in seconds, will it take the car to stop? How far will it go?
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Question: Patients undergoing an MRI occasionally report seeing flashes of light. Some practitioners assume that this results from electric stimulation of the eye by the emf induced by the rapidly changing fields of an M ...
Question: An object is 6.0 cm in front of a converging lens with a focal length of 10 cm . Part A Use ray tracing to determine the location of the image. Express your answer using two significant figures. The response mu ...
Question: The starter motor of a car engine draws an electric current of 110 A from the battery. The copper wire to the motor is 4.20 mm in diameter and 1.73 m long. The starter motor runs for 0.95 s before the car engin ...
Question: A thin, horizontal, 20-cm-diameter copper plate is charged to 4.0 nC . Assume that the electrons are uniformly distributed on the surface a) What is the strength of the electric field 0.1 mm above the center of ...
The first modern Olympics of 1896 had a marathon distance of 40 km. In 1908, for the Olympic marathon in London, the length was set at 42.195 km to provide the Royal Family with a better view of the race. Other distances ...
Question: A rock thrown with speed 12.0m/s and launch angle 30.0 degrees (above the horizontal) travels a horizontal distance of d = 15.5m before hitting the ground. From what height was the rock thrown? Use the value g ...
Question: A pendulum has a period of 0.69 s on Earth. What is its period on Mars, where the acceleration of gravity is about 0.37 that on Earth? The response must be typed, single spaced, must be in times new roman font ...
Question: A tank whose bottom is a mirror is filled with water to a depth of 19.4 . A small fish floats motionless 7.10 under the surface of the water. Part A) What is the apparent depth of the fish when viewed at normal ...
Question: A rocket starts from rest and moves upward from the surface of the earth. For the first 10s of its motion, the vertical acceleration of the rocket is given by ay=(3.00m/s3)t, where the +y-direction is upward. W ...
A clock is set against an accurate standard and 30 days later is found to be in error by 12 seconds. What is the percentage of error in its time keeping?
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