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If a person weighs 800 N on the Earth, what is the person's weight on the Moon? If a person weighs 160 lb on the Earth, what is the person's weight (in pounds) on the Moon? How many days are there in 12 lunar months (synodic months)?
Consider the reaction 4He + 40Ca -> 3H + 21Sc Find the minimum laboratory kinetic energy for the 4He projectile if 40Ca is stationary
Three identical (massless) springs are hung from the ceiling. Nothing hung from spring. The spring's bottom is0.2 m below the ceiling. Discover the spring constant that each spring has in
Sand drops at the rate of 2000 kg/min. from the bottom of a hopper onto a belt conveyor moving horizontally at 250 m/min. Determine the force needed to drive the conveyor, neglecting friction.
Five clocks are being tested in a laboratory. Exactly at noon, as determined by the WWV time signal, on successive days of a week the clocks read as in the following table.
A 45.0 kilogram woman stands up in a 60.0 kilogram canoe 5.00 meter long. determine how far does the canoe move during this process
When the temperature of a metal cylinder is raised from 0.0°C to 113°C, its length increases by 0.26%. Find the percent change in density
Standing on the surface of a small spherical moon whose radius is 6.30 104 m and whose mass is 8.00 1018 kg, What maximum height above the surface of the moon will the rock reach
A slide projector has a converging lens whose focal length is103.00 mm. How far from the lens should the screen be located if a slide is placed 105 mm from the lens? If the slide measures 21.0 mm× 37.0 mm, what are the dimensions (in mm) of its image..
A middle-aged man starts to wear eyeglasses with lenses of2.0 D that allow him to read a book held as close as 25 cm.Several years later, he finds that he must hold a book no closerthan 35 cm to read it clearly with the same glasses, so hegets new..
A 15 centimeter ruler is located 75 centimeter from a converging lens with a focal length of 60 centimeter. Obtain where is the image located and how big is it
A box of mass 72 kg is at rest on a horizontal frictionless surfce. a constant horizontal force of magnitude F then acts on the box, accelerating it to the right. What is the magnitude of the force
A tire of an automobile has a gauge pressure of 30 psi at the top of a mountain, and the air temperature inside the tire is 300K. The atmospheric pressure at the top of the mountain is 1.7 atm.
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