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A film of oil, with an index of refraction of 1.48 and a thickness of 1.80 cm, floats on a pool of water. A beam of light is incident on the oil at an angle, theta = 52.2° to the vertical.
Find the angle the light beam makes with the vertical as it travels through the water.
A 20-cm-diameter circular cover is placed over a 10-cm-diameterhole that leads into an evacuated chamber. How much force is required to pull the cover off
a small glider is placed against a compressed spring at the bottom of an air track that slopes upward at an angle of
The distance between two consecutive nodes of a standing wave is 20.4 cm. The hand generating the pulses moves up and down through a complete cycle 3.61 times every 5.03 s. Find the velocity of the wave. Answer in units of m/s.
questiona 1.00 ball is thrown directly upward with an initial speed of 16.0. a graph of the balls gravitational
A 1.00x10^2 kg crate is being pushed across a horizontal floor by a force P that makes an angle of 30.0° below the horizontal. The coefficient of kinetic friction is 0.200. What must be the magnitude of P, so that the net work done by it and the k..
find out the speed with which the pebble strikes the ground when the pebble is fired (a) horizontally, (b) vertically straight up, and (c) vertically straight down
At what average rate does the force from the cable. A falling skydiver has a mass of 54.5 kg. What is the magnitude of the skydiver's acceleration when the upward force of air resistance has the magnitude that is equal to one-fourth of his weight.
The electric field at the point x = 5.00cm and y = 0points in the positive x direction with a magnitude of 8.00 N/C. Atthe point x = 10.0cm and y = 0 the electric field points in thepositive x direction with a magnitude of 15.0 N/C. Assume this el..
A steel cable with total length 30 m and mass 100 kg is connected to two poles. Calculate the wavelength of the resulting wave on the cable
a- explain in terms of the microscopic structure of matter why materials expand when heated.b- explain what happenes
A balloon of volume 2.7 m^3 contains argon gas at a pressure of 2.4 10^5 Pa and room temperature (20°C). What is the total internal energy of the gas?
Suppose the force acting on a tennis ball (mass 0.040 kg) points in the +x direction and is given by the graph of Fig. 7-30 as a function of time. a) Use a graphical method to estimate the total impulse given the ball.
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