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Describe normal anatomy/physiology of muscle contraction emphasizing the utilization of ATP in this process.
Describe the difference between fast oxidative, slow oxidative, and fast glycolytic fibers.
Discuss the types of activities that utilize each of these three types of fibers.
What does training do to muscle? In other words, what is happening in the muscle when it grows in response to working out?
A vertical spring (ignore its mass), whose spring constant is 950N/m , is attached to a table and is compressed down by 0.160 m. How high above its original position (spring compressed) will the ball fly
A football punter accelerates a football from rest to a speed of 8 m/s during the time in which his toe is in contact with the ball (about 0.26 s). what average force does the punter exert on the ball
Two speakers emit sound of identical amplitude and frequency, in phase with each other. The frequency is 415 Hz. If the speakers are 9.00 meters apart, and you stand on the line directly among them, 3.47 m from one speaker, are you standing closer to..
The so-called "hydrogen alpha (Ha) line" is a specific wavelength of red light caused by excited atomic hydrogen. What is the frequency ( in units of cycles per second, or 1/s) of Ha in vacuum
A light ray is propagating in a crystal where its wavelengthis 599 nm. Find its wavelength in air in nanometers
Calculate the speed of a particle whose relativistic kinetic energy is p = 56 percent greater than the Newtonian value calculated for the similar speed. Kr=(1+p)Kn
If a 1.00-kHz sound source moves at a speed of 48 m/s toward a listener who moves at a speed of 29.5 m/s in a direction away from the source, what is the apparent frequency heard by the listener
An astronaut at rest on Earth has a heartbeat rate of 75 beats/min. When the astronaut is traveling in a spaceship at 0.89c, what will this rate be as measured by the following: an observer also in the ship, an observer at rest on Earth
To reach the center of teh gym ceiling, a 500N student tightroper walks to the center of a rope strung above the gym. what is the minimum angle the rope can make with the horizontal
A 65 g bullet is fired from a rifle having a barrel 0.560 m long. Assuming the origin is placed where the bullet begins to move, Determine the work done by the gas on the bullet as the bullet travels the length of the barrel
Speedboat A negotiates a curve whose radius is 150 m. Speedboat B negotiates a curve whose radius is 190 m. Each boat experiences the same centripetal acceleration. What is the ratio vA/vB of the speeds of boats.
A certain star is 18.6 light-years away. How long would it take a spacecraft traveling 0.950c to reach that star from Earth, as measured by observers?
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