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A bowling ball of mass M and Radius R (treated as a solid sphere) is thrown along a level surface so that initially (t = 0) it slides with a linear speed Vo but dows not rotate. As it slides, it begins to spin, and eventually rolls without slipping. Assume the coefficient of kinetic friction is µk
a) How long does it take to begin rolling without slipping?
b) What is the change of kinetic energy in the whole process?
Two electrons are confined in an extremely thin wire of length a. You may treat this wire as a one-dimensional infinite potential well. What is the energy of the ground state
An underwater diver sees the sun 46 degrees above horizontal. How high is the sun above the horizon to a fisherman
A goldfish is swimming inside a spherical bowl of water having an index of refraction n = 1.333. find the apparent distance of the goldfish from the wall according to an observer outside the bowl
A 1.00 kg beaker containing 2.0 kg of oil (density=916-kg/m3) rests on a platform scale. A 2.00 kg block of iron is suspended from a spring scale and is completely submerged in the oil.
How various revolutions per minute would a 21 -diameter Ferris wheel need to make for the passengers to feel "weightless" at the topmost point.
You have a beach ball which has a radius of 11 cm and a mass of 0.3 kg. You have a lead ball which has the same radius but has a mass of 120 kg. What is the buoyancy force felt by the beach ball
What is the magnitude of F if box is speeding of with a constant acceleration of 0.18 m/s2.
You want to estimate the height of the Empire State Building. You start at its base and walk 15 m away. Then you approximate the angle from the ground at that point to the top to be 88 degrees. How tall do you estimate the Empire State Building to..
A bullet is fired into a block of wood sitting on a block if ice. The bullet has an initail velocity of 500m/s and a mass of 0.005 kg. The wooden block has a mass of 2kg and is initially at rest.
A large positively-charged object with charge q = 3.75 ?C is brought near a negatively-charged plastic ball suspended from a string of negligible mass. what is the angle the string makes with the vertical
You place an ice cube in a microwave oven. If it requires 32,220 J to melt the ice cube and the oven delivers 97 W of power to the ice cube
A 3.5 k and a 1.5 k resistor are connected in parallel and this combination is connected in series with a 1.8 k resistor. If each resistor is rated at 1/2 W, what is the highest voltage that can be applied across the whole network.
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