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Two objects of weight W1 and W2 are placed on a frictionless inclinced plane are connected by a massless string looped over a massless pulley. A freebody disgram is necessary! Note that W1>W2.
a) Find the acceleration of the two objects
b) Find the speed of W1 and W2 when they travel a distance D, starting from rest
c) Are the objects moving to the right or left? Explain.
A 76kg student consumes 2500 Cal each day and stays the same weight. One day, he eats 3500 Cal and, wanting to keep from gaining weight, decides to "work off" the excess by jumping up and down.
you have fixed costs of $608,000 per year. Your tax rate is 31 percent and your required return on this project is 11 percent. Illustrate what bid price per stamp should you submit?
A nail gun fires a nail into a piece of wood. The nail is going a velocity of 6.8 m/s right before entering the wood. The mass of the nail is .06kg. what is the average force on the nail
Nate the Skate was an avid physics student whose main non-physics interest in life was high-speed skateboarding. In particular, Nate would often don a protective suit of Bounce-Tex
While running, a person dissipates about 0.60 J of mechanical energy per step per kilogram of body mass. how fast is the person running
A round pipe of varying diameter carries petroleum from a wellhead to a refinery. At the wellhead the pipe\'s diameter is 50.5 cm, what is the pipe\'s diameter at the refinery
What is the resistance of a lightbulb that uses an average power of 40.0 W when connected to a 60.0-Hz power source having a maximum voltage of 132 V
A simple model considers a continent as a block (density ? 2800 kg/m3), estimate the height of the continent above the surrounding mantle rock
The distance from the point on the surface of Earth to a point on a surface of the moon is measured by aiming a laser light beam at the reflector on the surface of moon and measuring the time required for the light to make a round trip.
A simple fuel level gauge can use the dielectric constant of the fuel to indicate its level in a tank. For which fuel is this a more appropriate gauge
A neutron star is an extremely dense, rapidly spinning object that results from the collapse of a star at the end of its life. What is its rotational inertia
You stand on the shore of a small river that measure 10 meters across. You take your cat and throw it into the middle of the stream. How long did it take the cat to reach you
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