What do you think that astronomers mean when they use the term observable universe? (Hint: Thi. nk of the time it takes for light from very distant objects to reach Earth.)

Most of the world's energy supply comes from burning fossil fuels. Fossil fuels are nonrenewable resources. If people continue to burn fossil fuels at the same rate, which of the following events will most likely happen? A.

Which of the following substances is covalently bonded? A. KF B. H2S C. CaCl2 D. SO2

Energy is transferred in solids by conduction, which means that? A: Heat travels in both directions B: Heat travels from the cooler object to the hotter object C:Heat travels from the hotter object to the cooler object D: Heat does not travel

A rock is thrown horizontally from the top of a radio tower lands 17.0 m from the base of the tower. if the speed at which the object was projected was 9.50 m/s, how high is the tower?

Compare how pressure and temperature change with depth inside Earth.

What are some methods humans have used to control flooding and what has been done to worsen the effects of flooding?

Suppose an electron is moving with a constant velocity until it encounters a positively charged sphere on its right. How does the sphere alter the trajectory of the electron? a. It has no effect on the trajectory of the electron b.

Most of the mass of the Milky Way exists in the form of: a.) starsb.) gasc.) dustd.) dark matter

A 55kg cart is pushed by a force of 225 n. what is the carts acceleration?

F we wanted to compare muscular endurance between a very large person and a very small person, what method would be the best method to use? a. absolute method b. maxing out c. callisthenic method d. fixed percentage of rm method