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A telescope consists of a mirror with radius of curvature 4.5 m and an eyepiece. If an astronomer would like the telescope to have a magnification of 181, what focal length eyepiece should he use?
A small spherical stone is thrown directly upward with an initial speed of 5.00m/s, from some unknown height above the ground. What is the maximum height that the stone reached
Betty Bodycheck (mB = 54.7 kg, vB = 22.0 km/h in the positive x-direction) and Sally Slasher (mS = 42.4 kg, vS = 28.0 km/h in the positive y-direction) are both racing to get to a hockey puck. Find both Betty's and Sally's Kinetic Energies
A baseball player hits a home run into the right field upper deck. The ball lands in a row that is 140 horizontally from home plate and 30.0 above the playing field. Determine the ball's average velocity components
A fiber optic line is composed of a core with an index of refraction of 1.47 and cladding with an index of 1.31. Which one of the following relations best describes angles of incidence ? that will result in total internal reflection within the fib..
An 82.0 kg skydiver jumps out of a balloon at an altitude of 1 280 m and opens the parachute at an altitude of 190 m. what is the speed of the diver when he lands on the ground
two 2.00 cm x 2.00 cm plates that form a parallel-plate capacitor are charged to pm 0.708 nc. part a what is the
A NASCAR racecar rounds one end of the Martinsville Speedway. This end of the track is a turn with radius approximately 187 ft. If we approximate the track to be completely flat and the racecar is traveling at a constant 68.00 mph around the turn,..
A 65.5 kg firefighter slides down a pole while a constant frictional force of 300 N retards her motion. Find the maximum distance the spring is compressed
A lead ball is dropped into a lake from a diving board 5.6 above the water. After entering the water, it sinks to the bottom with a constant velocity equal to velocity with which it hit the water. The ball reaches the bottom 5 after it is released..
A car traveling 90km/h slows down at a constant 0.50 m/s^2 just by "letting up on the gas." Compute the distance it travels during the third second.
A mass on a spring with constant 3.63 N/m vibrates with position given by the equation x = (5.00 cm) cos(3.10t rad/s). What is the maximum rate of energy transformation
A cosmic-ray proton in interstellar space has an energy of 17.0 MeV and executes a circular orbit having a radius equal to that of Earth's orbit around the Sun, What is the magnetic field in that region of space
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