Can only happen at Full Moon

While quasars may have now vanished, the large black holes they formed are still around, just not being fed as well any more

Indicate whether the statement is true or false

A mass is oscillating on a spring with a period of 4.60 s. At t = 0 s the mass has zero speed and is at x = 8.30 cm. What is its speed at t = 2.50 s?

A) 10.9 cm/s B) 3.06 cm/s C) 3.32 cm/s D) 1.80 cm/s E) 0 cm/s

A student weighing 300 N climbed a flight of stairs 5.0 m high in 6 s. How much work was done by the student?

a. 1500 J b. 1800 J c. 1500 W d. 1800 W e. 50 W

Kepler's Third, or harmonic, law states that the

A. semi-major axis of an orbit is inversely proportional to the period. B. planets move fastest when they are closest to the Sun. C. period of an orbit cubed equals the semi-major axis squared. D. semi-major axis of an orbit cubed equals the period squared.