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The moon's diameter is 3.48 106 m, and its mean distance from the earth is 3.85 108 m. The moon is being photographed by a camera whose lens has a focal length of 53.0 mm.
(a) Find the diameter of the moon's image on the slide film.
(b) When the slide is projected onto a screen that is 16.1 m from the lens of the projector (f = 103.4 mm), what is the diameter of the moon's image on the screen?
One afternoon, a couple walks three-fourths of the way around a circular lake, the radius of which is 1.48 km. What is the magnitude of the couple's displacement
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A 1.93kg block is placed against a compressed spring on a frictionless 27degree incline. How far up the incline will the block go before coming to rest
Physics: Speed of car at bottom of driveway; initial speed of bullet, 20 A 2.10 x 10³ kg car starts from rest at the top of a 5.0 m long driveway that is sloped at 20° with the horizontal. If an average friction force of 4.0 x 10³ N impedes the mo..
A heavier mass m1 and a lighter mass m2 are 20.0 cm apart and experience a gravitational force of attraction that is 9.00 10-9 N in magnitude. Determine the value of each individual mass
a physics book of mass m is pushed against a wall by a force P that makes and angle (theta) with the horizontal. The co-efficient of static friction is 0.2. Find the normal force on the book
Suppose an astronaut has landed on Mars. Fully equipped, the astronaut has a mass of 125 kg, What is the acceleration due to gravity on Mars
A particle of charge 4.96 is placed at the origin of an xy-coordinate system, and a second particle of charge -1.99 is placed on the positive x-axis at = 3.97. Find the direction of the total force acting on the third charge
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A laser used in a holography experiment has an average output power of 4.93 mW. Calculate the number of photons in each pulse
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