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A candle is placed 13.38 cm in front of a convex mirror. When the convex mirror is replaced with a plane mirror, the image moves 7.0 cm farther away from the mirror. Find the focal length of the convex mirror?
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Questin: A research submarine has a 30-cm-diameter window that is 9.0cm thick. The manufacturer says the window can withstand forces up to 1.2*10^6N . What is the submarine's maximum safe depth in salt water? The pressur ...
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 ...
Question: A textbook of mass 2.09kg rests on a frictionless, horizontal surface. A cord attached to the book passes over a pulley whose diameter is 0.120m , to a hanging book with mass 2.96kg . The system is released fro ...
Question: A pendulum is made by tying a 520g ball to a 46.0cm -long string. The pendulum is pulled 21.0?to one side, then released. A) What is the ball's speed at the lowest point of its trajectory? B) To what angle does ...
Question: A parallel-plate vacuum capacitor is connected to a battery and charged until the stored electric energy is . The battery is removed, and then a dielectric material with dielectric constant is inserted into the ...
Quesion: When a nucleus of 235U undergoes fission, it breaks into two smaller, more tightly bound fragments. Part A: Calculate the binding energy per nucleon for 235U. Express your answer with the appropriate units. E=__ ...
A projectile is launched at an angle of 13.0° above the horizontal. What is its initial speed if it hits a target that is located a horizontal distance of 155 m from the launch point and 10.5 m below the launch level?
Speedy Mike, driving at 32.0 m/s enters a one-lane tunnel. He then observes a slow-moving van 160m ahead traveling at 5.50 m/s. Mike applies his brakes but can accelerate only at -1.50 m/s^2 because the road is wet. Will ...
Question: Suppose the free-fall acceleration at some location on earth was exactly 9.8000 m/s^2. What would it be at the top of a 1000 -tall tower at this location? The response must be typed, single spaced, must be in t ...
Question: You're driving down the highway late one night at 16 m/s when a deer steps onto the road 35 m in front of you. Your reaction time before stepping on the brakes is 0.50 s, and the maximum deceleration of your ca ...
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