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The position of a softball tossed vertically upward is described by the equation y = 7.00t - 4.90 t2, where y is in meters and t in seconds.
A) Find the balls initial speed in (m/s) v0 at t = 0?
B) Determine the velocity component vy (in m/s) of the ball at t = 1.26 s?
C) Determine the component ay of the acceleration (in m/s2) of the ball at t = 1.26 s?
A light ray is incident upon a plane interface between two materials. what is the refracted angle (in degrees) in that material
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The mass of the brick will change but the weight of the brick will remainthe same. Both the mass and the weight of the brick will change.Both the mass and the weight of the brick will remain the same. The mass of the brick will remain the same but..
A sprinter running the 100 m dash has a constant acceleration of 3.0 m/s2 for the first 3.5 seconds of the race, How long does it the sprinter to run the race
An electric wire that has a mass of 5 kg for a 20m length is strung between two poles 20 m apart. What must be the tension in the wire if it is to take .80 seconds for a pulse to travel along the wire from one pole to the other.
You wish to determine the height of the smokestack of a local coal burning power plant. determine the height of the smokestack
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A coin is located 27.9 cm to the left of a converging lens (f = 20.0 cm). A second, identical lens is placed to the right of the first lens, Find the separation between the lenses
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