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A 266.0 gram handball moving at a speed of 5.4 m/s strikes a wall at an angle of 29.0 degree to the normal of the wall and then bounces off with the same speed at the similar angle. It is in contact with the wall for 0.002 second. Find the average force exerted on the wall by the ball?
In an amusement park water slide, people slide down an essentially frictionless tube. They drop 2.8 m and exit the slide, moving horizontally, What horizontal distance do they travel from the exit point
An equilateral glass prism is to be designed so that a light beam entering the prism perpendicular to the first face will be totally internally reflected once off the second face
The HR diagram is a powerful tool to analyze evolution and characteristics of stars. The HR diagram is used to plot the temperature/luminosity evolution of stars from the interstellar medium to the main sequence. As a star evolves along this path ..
A person is standing in an elevator that is stationary. What is the weight of the person when the velocity is 3 m/s upward and the acceleration is 2 m/s^2 downward
A wave has an amplitude of 0.25 m, a frequency of 5 Hz and a wavespeed of 4 m/s.a. Write the displacement equation for the wave
The filament of an incandescent light bulb is made of tungsten which has a thermal coefficient of resistivity of ? = 4.4 x 10-3K-1, Write an equation for the initial current, I0, that flows through the filament when it is initially turned on
The wavelength associated with the cutoff frequency for silver is 325 nm. Find the maximum kinetic energy of electrons ejected from a silver surface
Use the absolute derivative DA?/Du=dA?/du??(from ?? to ?)A? dx^?/du to prove that the inner (scalar) product of two vectors is preserved under parallel transport on a path if the connection defined on the manifold is a metric connection.
How much heat flows from 1.00 kg of water at 46.0°C when it is placed in contact with 1.00 kg of 24°C water in reaching equilibrium, What is the change in entropy due to this heat transfer
A 500 kg vehicle is cruising down the highway at 30 m/s when the driver creates an average force of 700 N by stepping on the gas. How much work was done by the vehicle during the .50km of acceleration
An express subway train passes through an underground station. It enters at t = 0 with an initial velocity of 21.5 m/s, What is the velocity of the end of the train as it leaves
A uniform .20-kN board of length L has two objects hanging from it : 300N at exactly L/3 from one end, What torques are being exerted on the board
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