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A hollow sphere of mass 15 kg and radius 8cm sits atop an inclined plane that is 10m in length and inclined at 30 degrees. The sphere starts at rest and rolls down the incline. What is the speed of the center of mass of the sphere at the bottom of the incline? At the Bottom of the incline what is the roational kinetic energy of the sphere? and What fraction of the sphere's total energy is rotational? I=(2/3)MR^2
A frictionless spring of spring constant 500 N/m has one end attached to a vertical wall and the other end to a block of mass 3.0 kg, What is the maximum Elastic Potential Energy
A 69.0 kg person throws a 0.0400 kg snowball forward with a ground speed of 35.0 m/s. What are the velocities of the two people after the snowball is exchanged
If the current in the circuit is 0.15 A and the resistances are R1 = 100 ? and R2 = 260 ?, what is the emf of the battery.
The filament of a light bulb has a temperature of 2.97 x 103 °C and radiates 60.0 W of power. Find the surface area of the filament
At time t=0 a grinding wheel has an angular velocity of 27.0rad/s, At what time does the wheel stop
A 125.2 carton is pulled up a frictionless baggage ramp inclined at 31.0 above the horizontal by a rope exerting a 75.2 pull parallel to the ramp's surface. What is the net work done on the carton
If 7 V is applied to the above circuit and the voltage across the first lamp is 1 V, what is the voltage across the second lamp
A certain camera has f-numbers that range from 1.1 to 28. If the focal length of the lens is 40 mm, what is the range of aperture diameters for the camera
In a primary coil the current is initially 3.4 A. After a time of 0.14s, the current will change to 1.6A. What is the mutual inductance of the coils
A 44.20 cm diameter disk rotates with a constant angular acceleration of 2.84 rad/s2. It starts from rest at t = 0, and a line drawn from the center of the disk to a point P on the rim of the disk makes an angle of 57.3° with the positive x-axis at t..
The Helium-Neon laser used in many labs and demos emits red light with wavelength of 0.6328 ?m. calculate how many photons of red light emerge from the laser every second
If you were to drink mercury (13.6g/cm^3) with a straw, what would be the maximum length of the straw
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