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Reflecting telescopes make use of a concave mirror, in place of the objective lens, to bring the distant object into focus. What is the magnifying power of a telescope that has a mirror with 250 cm radius and an eyepiece whose focal length is 5.0 cm?
The position of an object connected to a spring varies with time according to the expression x = (5.4 cm) sin(9.3?t). Find the frequency of the motion
A concave mirror (f = 49 cm) produces an image whose distance from the mirror is one-fourth the object distance. Determine the object distance.
A ballplayer standing at homeplate hits a baseball that is caught by another player at the same height above the ground from which it was hit. How high will the ball rise
For alpha particles of energy 7.68 MeV scattered from a platinum foil two microns thick, find the collision diameter
A runner accelerates to a velocity of 5.36 m/s due west in 3 s. His average acceleration is 0.64 m/s2, also directed due west. What was his velocity when he began accelerating
Balls B and C are identical and have the mass of 0.50 kg. After the collision, balls B and C have the similar speed, 4.2 m/s, but ball B moves at an angle of 22 above the horizontal and ball C moves at an angle of 22 below the horizontal. What is ..
A 5.0 kilogram block is experiencing an applied 3.0 newton force in the positive x direction and is held stationary by an opposing frictional force, Determine the magnitude of the normal force
What horizontal force P must a worker exert on the rope to position 50 kg. crate directed over the trailer.
Find out the minimum acceleration of the antelope.
A 1100 kg car increases it speed from 40 km/hr to 60 km/hr in 5 seconds. What is the resultant work done on the car
A container of hot water at 50 degrees cools to 49 degrees in how many seconds when it is placed in a room that is t 20 degrees. use newton's law of cooling to find the time it will take for the container to cool from 50 degrees to 49 degrees.
A 13g rifle bullet traveling 150m/s buries itself in a 3.7 kg pendulum hanging on a 2.9 m long string, which makes the pendulum swing upward in an arc. Resolve the horizontal component of the pendulum's maximum displacement.
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