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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 167 cm away from each mirror. The object appears 3.23 cm wide in the plane mirror, but only 1.78 cm wide in the rearview mirror. What is the focal length of the rearview mirror?
The current in a coil changes from 3.10 A to 1.90 A in the same direction in 0.530 s. what is the inductance of the coil
A 0.70 kg ball is moving horizontally with a speed of 9.7 m/s when it strikes a vertical wall. What is the magnitude of the change in linear momentum of the ball
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
How far above the base of the cliff does this happen. What is an acceleration at the point where the block begins to slip.
A spring with a constant of 32N/m is placed on a horizontal smooth surface and a mass of 2.3 kg is pushed against it. What is the velocity of the mass as it leaves contact witht he spring
A purple beam is hinged to a wall to hold up a blue sign. The beam has a mass of mb = 6 kg and the sign has a mass of ms = 16.3 kg. What is the tension in the wire
What is the electric field strength between the disks. What is the speed of the box at the end of the 5.7-s interval.
A charge +3.9 ?C is placed at the center of the hollow spherical conductor with the inner radius 3.1 cm and outer radius 5.5 cm, What is the total charge on interior and exterior surface
Most of the motion generated by joints in the human body are examples of levers. An example of a third class lever is the forearm, what force is exerted by the biceps muscle
The Eskimo pushes the same 50.0-kg sled over level ground with a force of 2.25 102 N exerted horizontally, evaluate the coefficient of kinetic friction
The plumbing in an old house uses lead pipes (which are now considered hazardous). what is the change in the length of the pipe
a stell ball of mass m suspended by a thread of lenght l. the ball is then released when the thread is horizontal. at the bottom of this path, find the speed of the block just after collision
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