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A rectangular plate is rotating with a constant angular speed aboutan axis that passes perpendicularly through one corner, as thedrawing shows. The centripetal acceleration measured atcorner A is n times as greatas that measured at corner B. What is theratio L1/L2 ofthe lengths of the sides of the rectanglewhen n = 1.70?
In one cycle, a freezer uses 780J of electrical energy in order to remove 1730J of heat from its freezer compartment at 10.0 oF. What is the coefficient of performance of this freezer
A wire of resistance 5.4 ? is connected to a battery whose emf ? is 2.0 V and whose internal resistance is 1.0 ?. In 1.8 min, how much energy is dissipated as thermal energy in the wire
Using Lorentz Law: You are given a charge moving between two parallel plates. Find the current (I) of a loop given a straight wire
A pitcher throws a baseball vertically upward with an initial speed of 15.0 m/s, releasing the ball when it is 2.00 above the ground, How long is the ball in the air
A particle that has an 8.2- micro-coulomb charge moves with a velocity of magnitude 5.0 x 10^5 m/s along the +x-axis . It experiences no magnetic force , although there is a magnetic field present
The lenses of a particular set of binoculars have a coating with index of refraction n = 1.38, and the glass itself has n = 1.52. what is the minimum thickness of the coating
An object is thrown straight up with an initial velocity of 4.6m/sand an acceleration of gravity of 9.8. Find the distance the object traveled from the persons hand
What is the potential energy of this group of charges. The coefficient of kinetic friction between the crate and the floor is 0.25. Find the acceleration of crate.
A cylindrical tank with a large diameter is filled with water to a depth D = 0.310 m. What is the rate at which water flows out, in cubic meters per second
A rope that is tied between a motor and a crate can pull the crate up a hill of ice (assume no friction) at constant velocity. Write the equations for the body in equilibrium
The owner of a van installs a rear-window lens that has a focallength of -0.298m. When the owner looks out through the lens at a person standingdirectly behind the van, the person appears to be just 0.241 m from the back of the van, and appears to..
A flint glass plate (n = 1.66) rests on the bottom of an aquarium tank. Calculate the apparent thickness of the plate as viewed from above the water
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