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A regulation table tennis ball has a mass of 2.8g and is 40mm in diameter. What is its moment of inertia about an axis that passes through its center?
A person looks horizontally at the edge of a swimming pool. If its length is 5.00m, and the pool is filled to the surface, to what depth (in m) could observer see? For water is 1.33).
a 15 kg box is skid down a 6 meter high ramp to pick up speed to do a veritcal loop-the-loop whose radius is 2 meters. What is the speed at the top of the loop-to-loop
A square loop (length along one side = 20 cm) rotates in a constant magnetic field which has a magnitude of 2.0 T. At an instant when the angle between the field and the normal to the plane of the loop is equal to 20? and increasing at the rate of 10..
questionsmall terrestrial bodies lacked gravity force which depends on mass to keep initial atmosphere supplied by its
How long does it take for the top to complete first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
An underdamped spring-mass system consists of a spring with a force constant of 2.00 N/m and a mass of 550 g. What is the value of the damping constant for the system
A person has a far point of 21 cm. This means that the person’s corrective lenses should produce an image 21 cm in front of the eye for an object that is very far away.
An experiment measures the temperature of a 270 substance while steadily supplying heat to it. The results of the experiment show. What are (a) specific heat of the liquid phase and (b) the heat of vaporization.
A Nichrome heater dissipates 450 W when the applied potential difference is 110 V and the wire temperature is 700°C. What would be the dissipation rate if the wire temperature were held at 200°C by immersing the wire in a bath of cooking oil? The app..
A boy catches - with bare hands and his arm extended - a 0.16 kg baseball coming directly toward him ar a speed of 25 m/s. what is the average force the boy's hand feel while catching the ball
A small 12.8g plastic ball is tied to a very light 26.9cm string that is attached to the vertical wall of a room. Find the magnitude and direction of the electric field in the room
A golf ball strikes a hard, smooth floor at an angle of θ = 31.6°, rebounds at the same angle. The mass of the ball is 0.043 kg, and its speed is 45m/s just before and after striking the floor. What is the magnitude of impulse applied to the golf bal..
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