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The right-side rearview mirror of Mike's car says that objects in the mirror are closer than they appear. Mike decides to do an experiment to determine the focal length of this mirror. He holds a plane mirror next to the rearview mirror and views an object that is 159 cm away from each mirror. The object appears 3.24 cm wide in the plane mirror, but only 1.81 cm wide in the rearview mirror. What is the focal length of the rearview mirror?
____cm
When a 24 Ohm resisotr is connected across a 12 Volt Battery, a current of 482 ma flows. What is the power delivered by the emf of the battery
A satellite is in a circular orbit about the earth (M = 5.98 x 1024kg). The period of the satellite is 3.44 x 104s. What is the speed at which the satellite travels?
Find out the velocity of the plane relative to the earth.
On a part-time job, you are asked to bring a cylindrical iron rod of length 94.7cm and diameter 2.50cm from a storage room to a machinist. Calculate the weight of the rod
Suppose that a disk rotates through two revolutions in 4.2 seconds. What is its displacement in radians in this time
Three successive resonant frequencies in an organ pipe are 865, 1211, and 1557 Hz. What is the fundamental frequency
After the collision (assumed elastic), the second ball is moving along the positive y axis. Elucidate the final direction of the first ball, and what are their two speeds?
An unmarked police car travelling a constant 95 km/h is passed by a speeder travelling 145km/h. Precisely 1 s after the speeder passes, the police officer steps on the accelerator.
In a common but dangerous prank, a chair is pulled away as a person is moving downward to sit on it, causing the victim to land hard on the floor.
A certain cavity has a temperature of 1150 K. (a) At what wavelength will the intensity of the radiation inside the cavity have its maximum value? [Do NOT need the answer to part (a); it is 2.52 mu m] (b) As a fraction of the maximum intensity, what ..
A bird (mass 31 g) is flying at 11.1 m/s when it flies into a glass window and bounces off at a speed of 4.1 m/s. What is the average force on the bird during the collision
a gymnast is performing a floor routine. In a tumbling run she spins through the air, How much time does this maneuver take
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