In order to determine speed, you must know

a. time.

c. Both

a. and

b. b. distance.

d. None of the above

In a series circuit with three bulbs, adding another bulb will do what?

A wave has a wavelength of 9 mm and a frequency of 6 hertz. What is its speed?

When using science to investigate physical phenomena, which characteristic of the event must exist? a. predictable b. observable c. provable d. readable

In a football game, running back is at the 10 yard line and running up the field towards the 50 yard line, and runs for 3 seconds at 8yd/s. what is his current position (in yards) ?

If you had 8 basketballs and 1 of them weighed more than the others but you didn't know which one it was, you have a basic 2 sided scale but you can only use it twice, how do you find the ball that weights the most?

At what temperature does gasoline freeze

A closed, rigid tank contains Refrigerant 134a initially at 100°C. The refrigerant is cooled until it becomes saturated vapor at 20°C. Kinetic and potential energy effects can be ignored.

What does the Law of the Conservation of Mass state

D. protons and neutrons have charges of the same magnitude but opposite sign. true or false

Explain the roles of products, reactants, and limiting reactant in chemical reaction.