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Consider a two-dimensional spatial coordinate system S' whose coordinates (u,v) are defined by
x = u + v
y = u - v
in terms of the coordinates of a Cartesian coordinate system S. Suppose you are given a vector in S whose contravariant components are Am = (2,8). Determine the contravariant components of this vector in S'.
The mass of a disk is 0.5 kg and it's radius is 15 cm. Calculate the moment of inertia for the disk if it is pivoted about an axis through the center of mass of the disk.
The A string of aviolin is a little too tightly stretched. What is the period of the violin string oscillation
What effect does temperature have upon surface tension? Is it better to wash clothes in hot water or cold water?
A child in a boat throws a 6.0 kg package out horizontally with a speed of 10m/s. Compute the velocity of the boat immediately after, assuming it was initially at rest. The mass of the child is 29kg and that of the boat is 55.0 kg. Overlook water ..
With what minimum speed should you toss a 140g ball straight up to hit the 11.0m-high roof of the gymnasium if you release the ball 1.30m above the ground? Resolve this problem using energy.
A person pulls a 30kg crate to the right along a rough horizontal surface. He pulls with a force of 200N at an angle of 25 degrees from the horizontal. Find the total force on the crate
A proton (rest mass 938.3 MeV/c^2) is confined to a small region of space 2.0 nm wide. What is the uncertainty on its speed due to this confinement
As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.17 s. What is the acceleration of the baseball
Two teams of nine members each engage in a tug of war. The first team's members have average masses of 65 kg and exert average forces of 1350 N horizontally. What is the acceleration of the two teams
Jeffrey is driving his Toyota Prius the freeway and reaches his exit. The exit has a radius of curvature of 25m and is banked 38°. How fast can Jeffrey travel around the curve on a dry day
An electric blanket is connected to a 120-V outlet and consumes 110 W of power. What is the resistance of the heater wire in the blanket
A .8 meter tennis racket is swung by a player with an arm length of .7m. what was the angular velocity of the shoulder joint
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