Which of the following pairs of terms directly relates to the actual brightness of a star?

A. absolute magnitude and luminosity

B. apparent magnitude and luminosity

C. size and luminosity

D. absolute magnitude and apparent magnitude

As a result of advances in biomedical engineering, many athletes that might at one time have lost their ability to participate in their sports due to catastrophic injury now can pursue their sports again, even if not as professionals.

Energy can be used to do which of the following things? Select one: Make something hotter Make something move Lift something up All of these are correct

A high-performance sports car can go from 0 to 100 mph in 5.8 s. (Assume the car travels in the positive direction. Indicate the direction with the sign of your answer.

Why do shield volcanoes have wide bases

The downward force produced when air flows over the winglike spoiler on a race car is an example of ___ principle

Inert gas used to make bright city lights True or False

A boulder on top of a cliff has a potential energy of 12400J. How high above is the boulder?

If the graph represents speed what is measured on the x and y axes

It is difficult to lift a heavy stone than the lighter one on the earth, why?

The vapor pressure of ethanol at 25 degrees C is 7.83 kPa. Calculate the vapor pressure in atm. Round answer to 3 significant digits.