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Light hits the surface of water at an incident angle of 36° with respect to the normal line. What is the angle between the reflected ray and the refracted ray?
A single force acts on a 8.0 kg particle-like object in such a way that the position of the object as a function of time is given by x = 3.0t - 4.0t 2 + 1.0t 3, Find the work done on the object by the force
A simple pendulum has a period of 3.74 s. The acceleration of gravity is 9.8 m/s^2 What is its length? What would its period be on the Moon
q1. a 245 ball is tied to a string. it is pulled to an angle of 5.20 and released to swing as a pendulum. a student
An electron and a proton are initially very far apart (effectively an infinite distance apart). which is the change in the electric potential energy
Two forces, 375 N at 11deg and 323 N at 25deg are applied to a car in an effort to accelerate it. If the car has a mass of 3730kg, what magnitiude of acceleration does it have
Two metal rods, one silver and the other gold, are attached to each other. The free end of the silver rod is connected to a steam chamber, How much heat flows through the two rods in 60 s
A photon whose energy is 1.3 x 10^-14 J is scattered off an electron at an angle of 50 degrees
A ball is thrown at an angle of 30.9 degrees above the horizontal at a speed pf 8.77 m/s. What is the vertical component of the ball's velocity
A large block of copper initially at 20.0oC is placed in vat of hot water (80.0oC). For the first 1.0 J of heat that flows from the water into the block, find the entropy change of the water
A 0.700kg block is attached to a spring with spring constant 14.5N/m . While the block is sitting at rest, find The amplitude of the subsequent oscillations
An object is 17 mm in front of a converging lens, and the image is 3 mm behind the lens. What is the focal length of the lens? Reply In mm
The intensity of the sunlight that reaches Earth's upper atmosphere is approximately 1410 W/m2. What is the average energy density
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