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A sprinter, mass 75 kilogram, runs the 50-meter dash in 8.50 s. suppose that the sprinter’s acceleration is constant throughout the race.
A. What is the average power of the sprinter over the 50.0 m?
B. What is the maximum power generated by the sprinter?
The 54-MW wood-fired McNeil Generating Station in Burlington, Vermont, produces steam at 950 ?Fto drive its turbines, Find McNeil's maximum thermodynamic efficiency
The particles in the figure below (m1 = 1.8 kg and m2 = 3.5 kg) undergo an elastic collision in one dimension. Find the velocities of the two particles after the collision
A bungee jumper with a mass of 65.0 kg jumps from a high bridge. After reaching his lowest point, he oscillates up and down, hitting a low point more times in 38.0s. He finally comes to rest at 25.0m below the level of the bridge. Calculate the st..
A 40cm -tall, 6.0cm -diameter cylindrical beaker is filled to its brim with water. What is the downward force of the water on the bottom of the beaker
A block slides down a frictionless plane having an inclination of θ = 15.0 degrees. The block starts from rest at the top and the length of the incline is 2.00m (a) Draw a free-body diagram of the block.
An unstable particle having mass of 5.00x10^-27 kg is initially at rest. Find the rest masses of the fragments
Astronomical observations of our Milky Way galaxy indicate that it has a mass of about 8 ? 1011 solar masses. What should the orbital period of that star be
Three fire hoses are connected to a fire hydrant. Each hose has a radius of 0.017 m. Find the water speed in each hose
A small ball with a mass of 0.06 kg moves along a circular orbit with a radius of 0.5 m at a speed of 3.0 m/s. What is the angular momentum of the ball
A sinusoidal wave traveling on a string has a period of 0.21s, a wavelength of 32cm, and an amplitude of 5.0cm. compute the speed of this wave
A 2.20 kg hoop 2.00 m in diameter is rolling to the right without slipping on a horizontal floor at a steady 2.40{\rm rad/s}. What is the total kinetic energy of the hoop
The electric field midway between two equal but opposite point charges is 745 N/C, What is the magnitude of the charge on each
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