Bob studies for a test and jackie does not study. after the test, they compare their scores. what's the independent variable?

What best describes the act of using senses or tools to gather information

What are the SI base units and their definitions?

What do orbiting satellites and the orbit of the moon around the Earth have in common? A. Parallel-force motion B. Central-force motion C. Velocity D. Friction

How much energy does a 50-watt light bulb use compared to a 100-watt light bulb if both are shining for the same length of time? Explain your answer.

If you have 240.0 mL of water at 25.00 °C and add 100.0 mL of water at 95.00 °C, what is the final temperature of the mixture? Use 1.00 g/mL as the density of water.

The gamma ray released by each decay carries 140kev of energy. find the total energy e released by decays in the 2 hours.

Think of the last five things you read. Now think of a type of reading you havent done recenty have never read. What kind of pattern do you see in your reading? What is your favorite type of reading and your least favorite type of reading?

Consider this statement: Air is matter. Which facts best support the statement? A. Balloons can be filled with air. B. Air is essential for life to exist. C. Air has mass. D. Air is not an element. E. To float on air is to be happy. F.

Hydroelectric power uses: wind water coal the sun

Two lightweight metal spheres are suspended near each other from insulating threads. One sphere has a net charge; the other sphere has no net charge. The spheres will: A. Attract each other B. Exert no electrostatic force on each other C.