What is meant by the heat death of the universe?
A) The universe will end in a giant inferno.
B) The universe will reach thermal equilibrium.
C) Some day the sun will explode and we will all burn.
D) Some day the sun will cease to provide electromagnetic radiation.
E) The radiation from the stars will continuously heat up the universe.
Question 2
The position of a mass that is oscillating on a spring is given by x = (12.3 cm) cos(1.26 s2)t. What is the acceleration of the mass when t = 0.825 s?
A) 9.89 cm/s2
B) -9.89 cm/s2
C) 10.6 cm/s2
D) -10.6 cm/s2
E) 0 cm/s2