1. a mathematical equation that predicts how a physical phenomenon will behave independent variable 2. a predicted experimental outcome based on prior knowledge and experience. scientific theory 3. the variable that is changed on purpose by the scientist. qualitative data 4. the variables that must be kept constant so as not to bias or influence the results quantitative data 5. data that is descriptive rather than numerical scientific law 6. data that is numerical hypothesis 7. a well tested explanation for why a physical phenomenon occurs control variable

20 da is equal to a. 2,000 cm. b. 2 m. c. 20,000 cm. d. 20,000 mm

Aspacecraft can attain a stable orbit 300 kilometers above earth if it reaches a velocity of 7.7 kilometers per second. the formula for a rocket's maximum velocity v in kilometers per second is vequalsminus0.0098tplusc ln upper r, where t is the firing time in seconds, c is the velocity of the exhaust in kilometers per second, and r is the ratio of the mass of the rocket filled with fuel to the mass of the rocket without fuel. find the velocity of a spacecraft whose booster rocket has a mass ratio of 20, an exhaust velocity of 2.1 km/s, and a firing time of 15 s. can the spacecraft achieve a stable orbit 300 km above earth?

Ali was paid $75 for mowing a neighbor''s yard. this is one fourth of the amount of money she earned all summer