What is the primary visible color of an emission nebula?

This glass of lemonade is sitting in the hot summer sun. As time passes, in which direction will heat transfer take place?

If an object had a mass of 5 kilograms, what would be the weight of the object measured on a spring scale in the unit of Newtons?

Which of the following is NOT an example of a network configuration? LAN WAN SAN MAN

What property of matter determines the electrical conductivity of a substance?

Imagine you are holding an apple. how could you increase the potential energy of this apple?

Friction is a force that speeds up motion between two surfaces that are in contact

Which actions are evidence that a chemical reaction has occurred? Check all that apply. A: a change in color B: the formation of a precipitate C: a clear liquid becoming cloudy D: a change in shape E: the formation of bubbles F: the formation of

Which sphere forms Earth's outermost layer? Atmosphere Biosphere Cryosphere Hydrosphere

an 100kg object traveling at 50m/s collides (perfectly inelastic) with a 50kg object initially at rest. what is the sum of the momentum of both objects prior to the collision?

A train moves at constant velocity of 50km/h. how far will it move in 0.5h?