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As a baseball is being thrown, it goes from 0.0 to 40.0 m/s in 0.39 s.
(a) What is the acceleration of the baseball?
(b) What is the acceleration in g's?
Steel rails 25.0m long are laid end to end with gaps between them to account for thermal expansion. Part A If the track is laid when it's 18 degrees C, how large should the gaps be to allow temperatures up to 39 degrees C?
What is the difference between the frequency, amplitude, and wavelength of a sound wave?
A catapult throws a projectile at a castle, but it lands 5.00 m short of the castle wall. The position of the projectile as a function of time is given by the equation r→(t) =(21.7m/s)t i^ + [(12.5m/s)t - (4.90m/s2)t2]j^. What is the average veloci..
A uniform electric field with a magnitude of 450 N/C is directed parallel to the positive x-axis. If the electric potential at x = 3.00 m is 1 000 V, what is the change in potential energy of a particle
What is the distance between two converging lenses, each of ofcal length f and used in combination to become a telescope
the displacement of a wave traveling in the negative y-direction is dyt 5.00cm sin 6.50 y 60.0 t where y is in m
A yo-yo has a mass of 0.604 kilogram, a moment of inertia of 0.01 kgm2, and a string that is 0.592 meter in length. find its angular velocity just before it started up
A person rides a motorbike 190 m along a road that slants upward at 9.0 o from the horizontal. How far has the rider gone in the horizontal direction? How much higher will the rider be at the end of the trip?
When the temperature of a copper penny is raised by 100 °C, its diameter increases by 0.18%. To two significant figures, give the percentage increase in Volume.
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. find the period of a satellite in a geosynchronous orbit
Resonance is a process of maximum transfer of energy between two systems: one is the source and the other the receiver. This is happening only the frequency of the source = frequency of the receiver. You need to identify in yours examples the sou..
a car initially running at 10 m/s applies brake and stops in 10 secs. What is the deceleration produced by the brakes
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