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A solid uniform sphere and a uniform spherical shell, both having the same mass and radius, roll without slipping down a hill that rises at an angle ?above the horizontal. Both spheres start from rest at the same vertical height h.
How fast is each sphere moving when it reaches the bottom of the hill?
A car is travelling at 26 m/s when the driver spots a large pothole in road a distance 34 m ahead. She at once applies her brakes. If her acceleration is -7.5 m/s2, does she manage to stop before reaching the pothole.
The negative terminals of three batteries (3V, 6V, 9V) are each connected to a 150 ohm resistor. what is the voltage across the gap in the broken wire
Threshold freq. of metal isf0. When the light of freq. 2f0 is incident on the metal max velocity of electrons is v1 and v2
A Carnot engine is operated between two heat reservoirs at temperatures of 530K and 300K. What is the thermal efficiency of the engine
A trunk with a weight of 230 N rests on the floor. The coefficient of static friction between the trunk and the floor is 0.32, what would be the acceleration of the trunk
Electromagnetic waves (light) can form standing waves. In a certain standing wave pattern formed by microwaves, What is the microwave frequency
An automobile tire is inflated with air originally at 10.0°C and normal atmospheric pressure. What is the tire pressure
How many days does it take for a perfect blackbody cube (0.0206 m on a side, 66.9 °C) to radiate the same amount of energy that a one-hundred-watt light bulb uses in one hour?
Old naval ships fired 14 cannon balls from a 240 cannon. It was very important to stop the recoil of the cannon, since otherwise heavy cannon would go careening across the deck of the ship.
The water pump on the engine of an automobile has a mass flow rate of 8.30 lbm/s. The water enters at 0.00 psig with a velocity of 1.00 ft/s and leaves at 10.0 psig with a velocity of 10.0 ft/s with no change in height or tempe..
A 27 pound meteorite struck a car, leaving a dent 21 cm deep in the trunk. If the meteorite struck the car with a speed of 500 m/s, what was the magnitude of its deceleration, assuming it to be constant.
A closed box has two metal terminals a and b. The inside of the box contains an unknown emf emf in series with a resistance R, Find the emf and R
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