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Question: A glass is half-full of water, with a layer of vegetable oil (n = 1.47) floating on top. A ray of light traveling downward through the oil is incident on the water at an angle of 76.0°. Determine the critical angle for the oil-water interface.
As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.25 s. What is the acceleration of the baseball
Calculate the force between two objects that have masses of 70 kg and 2,000 kilograms separated by a distance of 1 meter. Calculate the force between two touching grapefruits each with a radius of 0.08 meters and a mass of 0.45 kilograms.
A bowling ball (mass = 7.4 kg, radius = 0.11 m) and a billiard ball (mass = 0.39 kg, radius = 0.028 m) may each be treated as uniform spheres. find What is the magnitude of the maximum gravitational force
what was the cars original kinetic energy? after the car has stopped, what is the change in temperature of the brakes and wheels?
A proton initially at rest is accelerated by a uniform electric field. Find the voltage drop through which the proton moves
The intake in the figure has cross-sectional area of 0.79 m2 and water flow at 0.44 m/s. What is the pressure difference between inlet and outlet
The RMS speed of oxygen molecules (O2) in this room is 535 m/s. What is the temperature of the air at this location
At a grinding wheel has an angular velocity of 27. It has a constant angular acceleration of 26.0 until a circuit breaker trips at time = 1.60 . From then on, it turns through an angle 433 as it coasts to a stop at constant angular acceleration.
Two forces act on a 3.4 kg box. One of the forces is known to be F= 5.5 N. The acceleration is measured to be A= (-1.9i - 2.7j ) m/s2. Find the second force as a magnitude and direction
A 60 kg skier skis a distance of d=200 m down a q=15o incline starting from rest. His speed at the bottom of the hill is 5 m/s. What was the NET work done on the skier
A helium-neon laser emits light of wavelength 632.8 nm and has a power output of 13 mW. How many photons are emitted per second by this laser
Suppose that gravatational mass and inertial mass aredifferent but they are proportional to one another. Determine the acceleration of a freely falling object near thesurface of the Earth
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