Why is it impossible for us to observe any furthur than 13.7 billion light years in the universe?

Why do sunspots look dark?

Quick Physics Review Questions! What is true about heat capacity and specific heat? Only heat capacity accounts for mass. Both heat capacity and specific heat account for mass. Neither specific heat nor heat capacity accounts for mass.

For a science, you must build a model of an aquiefier. What material would be best to use for where the water will accumulate? a. clay b. granite c. gravel d. bedrock

April moves from a position that is 5 m north of her front door to a new position that is 3 m south of her front door. If this movement takes her 4 seconds what is her velocity?

What is the main difference between velocity and speed?

A lever allows a 35 N load to be lifted with a force of 7 N. What is the mechanical advantage of the lever?

A container of gas is at a pressure of 3.7 * 105 Pa How much work is done by the gas if its volume expands by 1.6 m3?

A person carries a mass of 10 kg and walks along the + x-axis for a distance of 100m with a constant velocity of 2 m/s. What is the work done by this person? A) 20 J B) None of the other choices is correct. C) 0 J D) 200 J

Uranus has more than 14 times as much mass as earth, yet the gravitational force is less. how can that be?

What is velocity-time graph?