If you're looking for an instrument that tells what stars are made of, look for a

a. stethoscope.

b. spectroscope.

c. telescope.

d. stellar microscope.

A tiger runs one kilometer. The tiger does 15,000 j of work and has a total power output of 500 w. How many seconds soes it take the tigar to run the distance?

What is the energy source of the convection cells in the earth's mantle? A. magma pushing through the crust at hot spots B. radioactive decay in the earth's interior C. gravity acting on the edge of the plates D.

If an insulator replaces a conductor in an electrical circuit, the flow of electrons in the circuit will be A) less B) greater C) the same

Which of these has the most chemical energy? A. a candy bar B. a gold brick C. a gallon of milk D. a gallon of gasoline

A 15 kg tv sots on a shelf at a height of 0.3 m. how much gravitational potential energy is added to the television when it is lifted to a shelf of height 1.0 m?

Critical thinking! Applying Concepts A desk exerts an upward force to support a computer resting on it. Does this force do work? Explain.

When an inclined plane is used, A. the mechanical advantage increases as the height increases. B. a smaller force is exerted over a longer distance. C. a negative mechanical advantage can result. D. a greater force is exerted over a shorter distance

A 4-kg cat is resting on a bookshelf that is 3m high. What is the cats gravitational potential energy relative to the floor if the acceleration due to gravity is 9.8m/s squared

If a 100 N net force act on a 50-kg car, what will the acceleration be

According to the modern classification system, which list is written correctly from least specific to most specific?