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A 73.0 kg base runner begins his slide into second base when he is moving at a speed of 4.4 m/s. The coefficient of friction between his clothes and Earth is 0.70. He slides so that his speed is zero just as he reaches the base.
(a) How much mechanical energy is lost due to friction acting on the runner?
J
(b) How far does he slide?
m
A laser used to weld detached retinas emits light with a wavelength of 654nm in pulses that are 20.2ms in duration. How much energy is in each pulse
You are an engineer in charge of designing a new generation of elevators for a prospective upgrade to the empire state building. Before the state legislature votes on funding for the project.
A 260 wooden raft floats on a lake. When an 80 man stands on the raft, it sinks 5.0 deeper into the water. When he steps off, the raft vibrates for a while. What is the frequency of vibration.
He would like a prescription for contact lenses to serve the similar purpose. What is the correct contact lens prescription, in diopters.
A block of weight wt1 = 409 N sits on a frictionless table of mass 118 kg. The block is connected via frictionless pulley to a hanging block with weight wt2 = 172 N. FIND the tension in the rope connecting the two masses
n oil film (n = 1.40) of thickness 290 nm floating on water (n=1.33) is illuminated with white light at normal incidence
The total volume of the column of water in the neck is 0.200 m^3. Illustrate what is the magnitude of the force exerted by the water on the bottom of the container?
Various voltages V are applied across a resistor and for each value of V the current I through the resistor is measured, What is the resistance R of the resistor
What were the initial charges on the spheres? Since one is negative and you cannot tell which is positive or negative, there are two solutions. Take the absolute value of the charges and enter the smaller value here.
What is the fraction of the hydrogen atom's mass (11H) that is in the nucleus? The mass of proton is 1.007276 u, and the mass of 11H atom is 1.007825 u.
a 19.2 kg sled is being pulled across a horizontal surface at a constant velocity. determine the coefficient of kinetic friction
A bird stands on an electric transmission line carrying 1200 A. of current. The line has 6.0E-05 ohm resistance per meter, What voltage does the bird feel
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