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A 1.0 kg hollow ball with a radius of 0.08 m, filled with air, isreleased from rest at the bottom of a 2.2 m deep pool of water. How high above the water does the ball shoot upward? Neglect allfrictional effects, and neglect the ball's motion when it is onlypartially submerged.
if you blow air over the top of a fairly large drinking straw you can hear a fundamental frequency due to a standing
A woman takes her dog Rover for a walk on a leash. To get the little pooch moving forward, How much force is tending to pull Rover forward
The entrance to a large lecture room consists of two side-by-side doors, one hinged on the left and the other hinged on the right. What is the diffraction angle of the sound under each of the following situations
A virtual image is formed 22.0cm from a concave mirror having a radius of curvature of 44.0cm. find the position of the object
You plan to throw stones by using a sling of length 0.5 m which you whirl over your head. Suppose you wish to throw a stone a distance of 27 m. What must be the centripetal acceleration of the stone
assuming the diameter of a penny is 2.00 cm and its mass is 2.60g what is the minimum air speed needed to lift the
A 0.500 kg hammer is moving horizontally at 6.50 m/s when it strikes a nail and comes to rest after driving it 1.00 cm into a board. Calculate the duration of the impact
A charged conducting sphere has a radius of 10.0 cm and is surrounded by an electric field. What is the potential at the center of sphere
A rotating wheel requires 5.00 s to rotate 26.0 revolutions. Its angular velocity at the end of the 5.00-s interval is 99.0 rad/s. What is the constant angular acceleration (in rad/s) of the wheel
A fish in a flat-sided aquarium sees a can of fish food on the counter. What is the actual distance between the can and the aquarium
A 4.0-m-long iron bar of uniform cross section is held perpendicular to the wall by a wire from the end of the bar to the wall. What is the tension in the wire
a large 6.0g hailstone of ice at 0.0 celsius falls 150m and undergoes a completely inelastic collision with the earth. what is the speed of the stone as it hits the earth
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