When we measure the broadening of absorption lines in the spectrum of an elliptical galaxy, we can infer.

An object moving at 31m/s takes 6s to come to a stop. What is the object's acceleration?

A cluster of galaxies containing very few galaxies is known as

For which of these questions could a testable hypothesis be developed? Check all that apply. Does the width of a rubber band affect how far it will stretch? How does the thickness of a material affect insulation?

A chemical property is determined by the following: a. how it looks c. how it feels b. how it smells d. none of the above

which one of the following will never happen when we use machine a force multiplication B innogy multiplication C is speed multiplication D changing the direction

Which of these is the best reason for proper nutrition? A. To ensure that you will be skinny B. To protect yourself against certain diseases C. To improve your intelligence D. To ensure that you will get good grades

And object has a mass of 15g it has a volume of 7.5ml. find the density of the object.

I need this answered quickly. is the branch of science for naming and classifying organisms based on their natural relationships? A-physics B-taxonomy C-genetics D-biology

For a fixed amount of gas, if the absolute temperature of the gas is doubled, what happens to the pressure of the gas?

A 500-kilogram sports car accelerates uni- formly from rest, reaching a speed of 30 me- ters per second in 6 seconds. What distance has the car traveled during the 6 seconds?