The asteroid Icarus, though only a few hundred meters across, orbits the Sun like the other planets.
Its period is about 410 d. What is its mean distance
from the Sun?

You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. at the time, gold is selling for $ 426.60 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. -how tall would your million-dollar cube be? en cm

Apulley with mass mp and a radius rp is attached to the ceiling, in a gravity field of 9.81 m/s2 and rotates with no friction about its pivot.

Convection currents are caused by differences in what two things?