Which statement best explains why an object weight less on mercury than it does on earth

Inertia is the property of an object that describes:

What is the internal shell found in a squid

In a "minute to win it" game, cards are placed between cups to stack them. The contestant then pulls the card out in hopes that they will end with a set of stacked cups. Why does this work? There is no friction between the card and the cup.

Suppose a volcanic eruption included large volumes of chlorine. what would likely happen to global stratospheric ozone levels and why?

Which of the following is a diatomic molecule? Ca2- N2 KCl MgCl2

Which type of wave experiences a change in speed when entering a new medium? a) only sound waves b) both sound and light waves c) only light waves d) neither sound or light waves

Three basic classes of collisions include all but which of the following?

How does the use of biomass energy to create electricity harm the environment

Which physical property of iron made it popular for use in weapons? 1. Magnetism 2. Luster 3. Malleability 4. Ductility

a 2 kg rock is dropped from the top of a 30 m High building calculate the ball at the time that it strikes the ground