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You produce an image of the Sun on a screen, using a thin lens whose focal length is 21.6 cm. What is the diameter of the image? (The mean radius of the Sun is 6.96 x 108 m and its mean distance from Earth is 1.50 x 1011 m.)
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. The crate slides down a long ramp that is inclined at an angle of 39 degrees above the horizontal. The crate has mass 244 kg .
A 1250-kg elevator starts from rest. It moves upward for 4.00 seconds with constant acceleration until it reaches its cruising speed of 3.50 m/s. What is the average power of the elevator motor
a ball of mass m is released from height h1. it slides along the smooth surface and collides elastically with the
at one instant the center of mass of a system of two particles is located on the -axis at 2.0m and has a velocity of
in a container of negligible mass 0.200 kg of ice at an initial temperature of 40.0 c is mixed with mass m of water
A viewing window in the Atlanta aquarium is 58 inches wide and 52 inches high. what is the outward force on the window
what is the mass of the earths atmoshere (the radius of the earth is 6.37 x 10^6 m, and atomosheric pressure at the surface is 1.013 x 10 ^5 N/m^2)
A farm truck moves due north with a constant velocity of 9.5 m/s on a limitless horizontal stretch of road. A boy riding on the back of the truck throws a can of soda upward and catches the projectile at same location on the truck bed, but 16 m fa..
Find the gage pressure at the center of pipe A in pounds per square inch and in kilopascals.
Westerly winds coming off the Pacific Ocean rise over the Rocky Mountains, which rise to a height of approximately 15,000 ft (580 hPa). The air on the western side of the mountain range is at 800 hPa (T = 70F, r = 0.75), and will subside on the easte..
the old baker bowl centerfield fence was about 408 feet from home plate. home run balls needed to be at least 35 feet
A29.0 kg wheel, essentially a thin hoopwith radius 1.02 m, is rotating at 280rev/min. It must be brought to a stop in 15.0 s. How much work must be done to stop it
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