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A simple pendulum consists of a ball connected to one end of a thin brass wire. The period of the pendulum is 3.20 s. The temperature rises by 135 C°, and the length of the wire increases. Determine the change in the period of the heated pendulum.
What is wind velocity
A car traveling at 86 km/h strikes a tree. The front end of the car compresses, What was the average acceleration of the driver during the collision
To hoist himself into a tree, a 72.0-kg man ties one end of a nylon rope around his waist and throws the other end over a branch of the tree. determine the man's upward acceleration
The temperature of the surface of a certain star is 7500 K. Most hydrogen atoms at surface of the star are in the electronic ground state. What is the approximate fraction of hydrogen atoms that are in the first excited state (and therefore could ..
Determine out the magnitude of the average force that the water exerts on the diver. This force is neoconservative.
At normal incidence, the intensity of sunlight at the Earth is 1400 W/m2. find the force on the Earth due to radiation pressure from the Sun
A 0.240 kg block on a vertical spring with spring constant of 4.20 103 N/m is pushed downward, compressing the spring 0.045 m. How high does it rise above the point of release
In an amusement park ride, cars are suspended from L = 4.20 m cables attached to rotating arms at a distance of D = 6.06 m from the axis of rotation. What is the angular speed of rotation
A modern sculpture has a large horizontal spring, with a spring constant of 274 N/m, By how much has the spring stretched
An inductor in the form of a solenoid contains 410 turns and is 12.0 cm in length. What is the radius of the solenoid
The cross-sectional area of region A in the pipe is 1.05m^2, and the cross-sectional area of region B in the pipe is 0.740m^2. What is the speed of the water in region A of the pipe
Two masses are connected by a string. Mass A is on a flat roof and mass B is hanging over the edge of the roof. The mass on the roof is 15 kg and the hanging mass is 5 kg, how far along the roof does this mass move before stopping (the masses are s..
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