A projectile is thrown from the top of a building with an initial velocity of 30 m/s in the horizontal direction. If the top of the building is 30 m above the ground, how fast will the projectile be moving just before it strikes the ground?
a. 35 m/s
b. 39 m/s
c. 31 m/s
d. 43 m/s
e. 54 m/s
b
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A 3.0 kg mass is connected to a spring with a spring constant of 6.0 N/m. The velocity is given by the expression v(t) = 10.0 cm/s sin
What is the maximum velocity of the simple harmonic motion?
A. 10 cm/s B. 14 cm/s C. 17 cm/s D. 20 cm/s E. 25 cm/s
What are Dactyl, Gaspra, Mathilde, Eros, and Ida?
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What makes a transition from a lower energy state to a higher energy state when a photon is absorbed into an atom?
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