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Olympic spring Usain Bolt set the world record in the 100 meter dash with a time of 9.58 seconds. The physics behind his performance are impressive. Physicists have modeled his position as a function of time to be as follows:"
where A=110 m/s, B=12.2 m/s, k=0.9 1/s. Using this information, find his acceleration when t = 0 seconds. If his mass was 86 kg at the time of the race, what was his force at t = 0 seconds. What was the force from the ground on Bolt at t = 0 seconds?
It takes 150 minutes for a middle-aged physics professor to ride his bicycle up the road to Alpe d'Huez in France. What is the bicyclist's average power output
Use the exact values you enter in previous answer(s) to make later calculation(s). The nucleus of a hydrogen atom is a single proton. What is the approximate volume of a proton
Compute the horizontal distance
What is the peak voltage? What is the rms value of the current drawn by the heater? What is the resistance of the heater?
A 24 GeV proton in cosmic radiation moves in Earth's magnetic field B, with a velocity v perpendicular to B, What is the radius of the proton's curved path in that region
A batter hits a fly ball which leaves the bat 0.90 m above the ground at an angle of 55° with an initial speed of 27 m/s heading toward centerfield. How far from home plate would the ball land
If you consume 25.0 Calories per day more food energy than you use, how many years will it take you to gain 10.0 kg of fat if there are 33.1 MJ per kg of body fat?
If a photon is a wave and is moving (along the X-axis) at the speed of light, isn't any specific part of the wave moving faster than the speed of light? A specific point on the wave moves up and down yet is traveling in the X direction at the speed o..
An incident X-ray photon of wavelength 0.2800 nm is scattered from an electron that is initially at rest. find the momentum gained by the electron
A 24kg projectile is moving at 240m/s in the positive direction of the x axis when it explodes and divides into two fragments, What is the direction and speed of the other piece
A super ball of mass 0.05 kg is dropped from a height of 10 cm above a table top. It bounces off the table and rises to the similar height. find the average force exerted by the table on the ball
A star's temperature is 5649 K.According to the Stefan-Boltzmann law, what is the total power output of the star
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