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A 270-N sphere 0.20 m in radius rolls without slipping 6.0 m down a ramp that is inclined at 34° with the horizontal. What is the angular speed of the sphere at the bottom of the slope if it starts from rest?
A tank circuit in a radio transmitter is a series RCL circuit connected to an antenna. determine the maximum inductance of the tank circuit
A muon is produced by a collision between a cosmic ray and an oxygen nucleus in the upper atmosphere at an altitude of 50 km, What is the velocity of a muon at the surface
A beam of light is incident from air onto a flat piece ofpolystyrene at an angle of 52^{\circ} relative to a normal to the surface. What angle does the refracted ray make withthe plane of the surface?
The dielectric of a parallel plate capacitor is to be a slab of glass that totally fills the volume between the plates. The area of each plate is 0.50 m2. Find what thickness should the glass have if the capacitance is to be 0.10 µF
A 3.3 k and a1.8 k resistor areconnected in parallel and this combination is connected in serieswith a 1.8 k resistor. If each resistor is rated at 1/2 W, what is the maximum voltage that can be applied across the whole network?
Two identical cars (m = 1350 kg) are traveling at the same speed of 18.9 m/s. What is the magnitude of the total momentum of the two cars
You are designing a game for kids. You want to see if the game will require safety goggles. Find how high will the ball go if the gun is aimed vertically upward
A pulse from a ruby laser (lambda = 694.3 nm) has an average power of 30 MW and lasts 2.9 ns. How many photons are emitted in this pulse
A rocket, initially at rest on the ground, accelerates straight upward from rest with constant acceleration 34.3m/s2, Find the maximum height ymax reached by the rocket
An oil drop carries one excess electron and weighs 9.3 x10-15 N. What electric field strength is needed to suspend the drop so it is motionless.
A 70.0 kg football player leaps straight up into the air (with no horizontal velocity) to catch a pass. If the ball was moving horizontally when it was caught, how fast was the ball travelling
Two point charges, +5.0 µC and ?2.0 µC, are separated by 4.0 m. What is the electric potential energy
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