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A virtual image is located 53.5cm behind a concave mirror with focal length 20.0cm .
a. Where is the distance from the mirror to the object?
b. By how much is the image magnified?
A rectangular block of ice 9.00 m on each side and 0.7 m thick floats in sea water. The density of the sea water is 1025kg/m3. The density of ice is 919kg/m3. How high does the top of the ice block float above the water level.
Two electrodes are placed in a calcium chloride solution and a potential difference is maintained between them. what is the current in the solution
A jet airplane is in level flight. The mass of the airplane is m = 8870 kg. At what angle is the airplane banked
Starting from rest, a 2.3x10-4 kg flea springs straight upward. While the flea is pushing off from the ground, What is the flea's speed when it leaves the ground
q1. what is the smallest thickness of a soap film n1.47 that will appear black if illuminated with 490 nm light?
A light spring with spring constant 1200 N/m hangs from an elevated support. From its lower end hangs a second light spring, which has spring constant 1650 N/m. An object of mass 1.50 kg is hung at rest from the lower end of the second spring.
A divers lungs hold 0.0050 m^3 of air at sea level, where the pressure is 101.3 kPa. what is the volume of the air in his lungs at a depth of 3 m
a swimmer wears a heavy belt to make her average densityexactly equal to the density of water. Her mass, including thebelt, is 60kg. what is the swimmer's weight in newtons
Object A has a position as a function of time given by A(t) = (3.00 m/s)t + (1.00 m/s2)t2, What is the distance between object A and object B at time t = 4s?
a 6.00 kg bowling ball is rolling at 9.00 m/s. It collides with a 1.50 kg bowling pin at rest. What is the velocity of the ball after the collision
A spring-loaded gun shoots a plastic ball with a launch speed of 3.1 m/s. If the spring is compressed twice as far, what will be the ball's launch speed
An intergalactic rock star bangs his drum every 1.10 s. A person on earth measures that the time between beats is 2.10 s
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