5 A volcanic eruption launches thousands of rocks into the air, The rocks will travel different distances due to their different masses, but ultimately all of the raks will
return to the ground. Which of the following explains why that is?

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

Work out sian speed for the first 30 minutes of her journey. give your answer in km/h.

The sun’s mass is 2.0×10^ 30 kg, its radius is 7.0×10 5 km, and it has a rotational period of approximately 28 days. if the sun should collapse into a white dwarf of radius 3.5×10 3 km, what would its period be if no mass were ejected and a sphere of uniform density can model the sun both before and after?