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The near point of an eye is 109 cm. A corrective lens is to be utilized to allow this eye to clearly focus on objects 26.0 cm in front of it.
a) What must be the focal length of the lens?
b) What is the power of the required corrective lens?
A baseball player leads off the game and hits a long home run. How far will it travel in the air
An outfielder throws a baseball to his catcher in an attempt to throw out a runner at home plate. The ball bounces once before reaching the catcher.
A tennis player hits a 1.45 kg tennis ball with a racket of mass 2.5 kg. If he hits the ball with a velocity of 7.5 m/s and then stops, what impulse did he imply on the ball
An isolated conducting sphere has a 9cm radius. One wire carries a current of 1.000 002 0 A into it.Another wire carries a current of 1.000 000 0 A out of it. How longwould it take for the sphere to increase in potential by800 V?
A car has a mass of 1000 kilogram it's at the top of a 10o hill. Find what is it gravitational potential energy relative to the bottom of the hill
On an icy (nearly frictionless) street a 600 kg car traveling straight east at 5 m/s collides with a 1000 kg car traveling straight north at 3 m/s. what is the final speed of the second car
Two identical conducting spheres, fixed in place, attract each other with an electrostatic force of 0.139 N when their center-to-center separation is 69.5 cm.
A 120-V motor has mechanical power output of 2.10 hp. It is 80.0% efficient in converting power that it takes in by electrical transmission into mechanical power.
An ideal gas is enclosed in a cylinder that has a moveable piston on top. The piston has a mass of 6200 g and an area of 5 cm2 and is free to slide up and down.
The human eye is able to detect as little as 2.35 × 10-18 J of green light of wavelength 510 nm. Calculate the minimum number of photons of green light
An astronaut is being tested in a centrifuge. The centrifuge has a radius of 7 m and, in starting, rotates according to ? = 0.30t2, When t = 5.0 s, what is the magnitude of the astronaut's linear speed
A camera lens usually consists of a combination of two or more lenses to produce a good-quality image. How far to the right of the convex lens is the final image
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