Consider the observation the andromeda galaxy, a member of our local group, is moving toward us. why doesn't this observation contradict the idea that the universe is expanding?

On a trolley ride around an amusement park, a child travelled from one signpost to a second signpost at a constant speed of 125 meters per minute.

Select all that apply. Which statements are supported by the second law of thermodynamics? A.) The usable energy in the universe is decreasing. B.) The usable energy in the universe is increasing. C.) The energy of the universe is being destroyed. D.

The heat capacity of 0.125Kg of water is measured to be 523j/k at a room temperature. Hence, calculate the heat capacity of water (a) per unit mass (b) per unit volume

Which statement accuratley describes isaac newtons achievements? A. He was a professor of mathematics at Cambridge university. B.

What does the term "the ability to do work or cause change" describe? energy matter temperature density

Which electromagnetic waves have a higher frequency than visible light

Calculate the speed for a car that went a distance of 125 miles in 2 hours time

A small 25 kilogram canoe is floating downriver at a speed of 4 m/s. What is the canoe's kinetic energy?

A car traveling on a flat (unbanked), circular track accelerates uniformly from rest with a tangential acceleration of 1.85 m/s2. The car makes it one quarter of the way around the circle before it skids off the track.

A train travels 120 km in 2 hours and 30 minutes what is the average speed