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A Ferris wheel has radius 5.0 m and makes one revolution in 8.0 seconds. A person weighing 670N is sitting on one of the benches attached at the rim of the wheel. What is the apparent weight (normal force exerted on her with the bench) of the person as she passes during the high-test point of her motion?
A standardized biological microscope has an 8.0--focal-length objective. What focal-length eyepiece should be used to achieve a total magnification of.
A machine is designed to perform a given amount of work in a given amount of time. Find the power of the second machine
A driver travels northbound on a highway at a speed of 28.0 m/s. What frequency does the driver observe as the police car approaches
Water has a mass per mole of 18g/mol, and each water molecule (H2O) has 10 electrons.
If she were to use the mattress as a trampoline losing contact with it for part of each cycle. What minimum amplitude of oscillation does she need.
An electron has an initial velocity of 5.00 106 m/s in a uniform 3.00 105 N/C strength electric field. What is the direction of the electric field
The four tires on the author's car are inflated to an absolute pressure of 2.7x10^5 Pa. obtain the contact area between each tire and the ground
an immersion heater used to boil water for a single cup of tea plugs into a 120 v outlet and is rated at 350 w .a what
A block is attached to a pulley and is resting on a ramp. The angle the ramp makes with the horizontal is 35 degrees. What is the mass of the block on the ramp
A heavy mass in free fall does not fall faster than a light mass. The extra weight is compensated for by extra resistance. A heavy mass on a frictionless plane does not slide down faster than a light mass. A heavy ring and a light ring both roll d..
Your cup of coffee is too hot to drink when served at 95.0. What is the mass of an ice cube, taken from a -23.0 freezer, that will cool your coffee to a pleasant 59.0
a nonconducting sphere of charge q and mass m is attached to a string of length l and hangs from a ceiling. when a
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