The revolving nosepiece of a compound microscope is used to: a. move the condenser up or down b. change the objective lens c. adjust the slide to move the object into view d. change eyepiece lenses

If we approximate the rack to be completely flat and the racecar is travelling a constant 30.5 m/s around the turn, what forces are responsible for the centripetal acceleration?

What is the formula for density?

If an element has a charge of 2+, how many more protons does it have than electrons?

What is the same for all types of electromagnetic radiation?

What kinds of friction do you know and explain with suitable example?

Heliocentric means ... sun-centered. moon-centered. Earth-centered. galaxy-centered.

Which of the following statements are true? a. A satellite's motion is independent of its mass. b. A satellite's velocity and orbital radius are independent of each other. c. A geosynchronous satellite has a period of approximately 28 days. d.

Latent heat of vaporization refers to which changes of state? liquid to gas or gas to liquid solid to gas or gas to solid solid to liquid or gas to liquid gas to liquid or liquid to solid

In what part of the scientific method do you record data? a. Conclusion b. Experiment c. Analysis d. Hypothesis

What is the basic definition of a black hole? a. any compact mass that emits no light b. a dead star that has faded from view any object from which the escape velocity exceeds c. the speed of light any object made from dark matter d.