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A person is standing at the edge of the water and looking out at the ocean (see figure). The height of the person's eyes above the water is h = 1.8 m, and the radius of the Earth is R = 6.38 x 106 m. (a) How far is it to the horizon? In other words, what is the distance d from the person's eyes to the horizon? (Note: At the horizon the angle between the line of sight and the radius of the earth is 90°.) (b) Express this distance in miles.
Find the eight ball's speed after the colision. Parallel rays of green mercury light with a wavelength of 546 nm pass through a slit with a width of 0.437 mm. What is distance from the central maximum to the first minimum on a screen 1.75 mm away f..
An artillery shell is fired with the initial velocity of 300 m/s at 54.7° above the horizontal. To clear an avalanche, it explodes on the mountainside 55.0 s after firing. What is the x and y components of the shell where it explodes, relative to its..
A 16.5 kg gold bar at 27 °C is placed in a large, insulated 0.800 kg glass container at 15°C with 2.00 kg of water at 25.0°C. Compute the final equilibrium temperature.
A 29.5 kg block is connected to an empty 1kg bucket by a cord running over a frictionless pulley. The coefficient of static friction between the table and the block is 0.50 and the coefficient of kinetic friction between the table and the block is..
A camera flashtube requires 8J of energy per flash. The flash duration is 2m/ss}. What power does the flashtube use while it's flashing?
A 3 kg block is observed to accelerate at a rate twice that of the 6 kg block. Is the net force acting on the 3 kg block therefore twice as large as that performing on the 6 kg block? Explain.
A Michelson interferometer uses light from glowing hydrogen at 486.1 nm. As you move one mirror, 530 bright fringes pass a fixed point in the viewer. How far did the mirror move.
Visualize the one cubic centimeter as formed by stacking up identical cubes, with one copper atom at the center of each. Determine the volume of each cube.
A television set connected to a 121 V outlet consumes 88 W of power. How long does it take for 10 million electrons to pass through the television.
A car starts from rest and moves along a straight line with an acceleration of a = (3s -1/3) m/s2, where s is in meters. Resolve the car's velocity and position when t = 10 s.
Estimate the wavelength of the light.
Find the distance from the positive plate
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