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a Hollow sphere of mass M=1000kg and radius R=25cm is rolling down of an incline plans making an angle with horizontal. the thin hoop starts with an initial velocity=25m/s at a vertical height H and traveling a distance d=200m Calculate the moment of inertia of the hollow sphere Calculate the initial kinetic energy of the hollow sphere at the starting point Calculate the initial potential energy at the starting point calculate the initial total energy of the hollow sphere calculate the final velocity at the bottom of the incline plan calculate the angular acceleration of hollow sphere after 10s (t final=10s) calculate the net torque produced by the hollow sphere after 10s (t final=10s)
The diameters of the main rotor and tail rotor of a single-engine helicopter are 7.69 m and 1.04 m, respectively. The respective rotational speeds are 452 rev/min and 4,140 rev/min. Calculate the speeds of the tips of both rotors
A dynamite blast at a quarry launches a rock straight upward, and later it is rising at a rate of 15m/s. Assuming air resistance has no effect on the rock, calculate the total time the rock is in the air.
After impact, the block slides 7.5 m before coming to rest. If the coefficient of kinetic friction between block and surface is 0.650, illustrate what was the speed of the bullet immediately before impact?
A hammer is hanging by a light rope from the ceiling of a bus. The ceiling of the bus is parallel to the roadway, What is the acceleration of the bus
A person eats a dessert that contains 230 kcal. The skin temperature of this individual is 36° C and that of her environment is 21° C. The emissivity of her skin is 0.85 and its surface area is 1.3 m2. How much time would it take for her to emit the ..
What is the mass of the block on the left. At what rate is the plate's area increasing when the radius is 50 cm? (Give your answer correct to 2 decimal places.)
Find out the type of mirror and how far the object is
Two sinusoidal waves, identical except for phase, travel in the same direction along a string, producing the net wave y(x,t)=(6.0 mm)sin(24.0x -2.0 s-1 * t+0.320 rad), with x in meters and t in seconds. What is the wavelength ? of the two waves? W..
A car is behind a truck going 25m/s on the highway. The car's driver looks for an opportunity to pass, guessing that his car can accelerate at 1.0m/s2. He gauges that he has to cover the 20-m length of the truck, plus 10m clear room at the rear of..
A 3.11kg stone is tied to a thin, light wire wrapped around the outer edge of the uniform8.23kg cylindrical pulley, What is the rotational inertia of the pulley
To get the top spinning, its string is pulled with a tension of 0.30. Explain how long does it take for the top to complete the first five revolutions? The string is long enough that it is wrapped around the top more than five turns.
Find the surface tension force on water inside a tube and height to which the water rises in the tube.
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