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A tank contains benzene, which has index of refraction1.50. A dime is on the botton of the tank. When viewed atnormal incidence the dime appears to be 59 cm below the surface ofthe benzene. What is the actual depth of the benzene?
A bat flying in a cave emits a sound and receives its echo 0.37s later. How far away is the cave wall? (Hint: The sound has to travel to the wall and then back again. Use 340 m/s for the speed of sound.)
A particular heat engine has a useful power output of 4.40 kW and an efficiency of 30.0%. The engine expels 7200 J of exhaust energy in each cycle , Find the time interval for each cycle
A meter stick is balanced horizontally on a pivot attached at the 50-cm mark. A 300-gram mass is attached to the right half of the meter stick 30 cm from the pivot point and it swings down. You wish to rebalance the meter stick horizontally with a 45..
A typical microwave oven has a power consumption of about 1200 W. Estimate how long it should take to boil a cup of water in the microwave, How does this estimate correspond to everyday experience
Jupiter has a radius of 71,492km and a mass of 1.9x10^27 kg. Jupiter's moon has a mass of 9x10^22kg and orbits at a distance of 422x10^3km
A circular loop of flexible iron wire has an initial circumference of 169cm, but its circumference starts to decrease at a constant rate of 10.0cm/s due to a tangential pull on the wire. What is the direction of the induced current in the loop
Two small spheres spaced 20centimetres apart have equal charge. How many excess electrons should be present on each sphere if magnitude of the force of repulsion between them is newtons.
A 5 cm tall object is placed 20 cm to the left of a converging lens with focal length of 10 cm. What is the magnification of the image
q1. two identical 30 rm g particles each carry 3.0 rm mu c of charge. one is held fixed and the other is placed 1.0 rm
A uniform rod of mass 3.05×10^-2?2kg and length 0.370m rotates in a horizontal plane about a fixed axis through its center, compute the angular speed of the rod after the rings leave it
A 0.174kg softball is pitched horizontally at 26m/s. the ball moves in the opposite direction at 38m/s after it is hit by the bat.
The field has a magnitude of 0.5 T and is oriented in the +z direction. The particle is deflected in the -y direction and traces out of a fragment of a circle of radius 0.1m. what is the charge to mass ratio
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