State the objects in the universe that give out their own light

Why can light travel through outer space, but sound cannot?

Do cars get better gas mileage with clean air filters? Gas mileage for 10 cars with dirty air filters and clean air filters was studied.

Suppose you took a trip to the moon. Write a paragraph describing how and why your weight would change. Would your mass change too?

Which statement is true? A. A resistor alters current and a switch turns current on and off B. A resistor measures voltage, and a switch changes AC to DC or DC to AC C. A resistor alters current and a switch measures voltage D.

Why was the inclusion of sketches in his notes important to Galileo's studies

About how much energy is transferred between a producer and primary consumer? A. 90% of the original energy from the Sun is transferred B. 10% of the original energy from the Sun is transferred C. 10% of the plant's energy is transferred D. 0.

If you exert a force of 500 n to walk 4 m up a flight of stairs in 4 s, how much power do you use?

The concepts of a "particle" and a "wave"

If a particle undergoes shm with amplitude 0.10 m, what is the total distance it travels in one period?

If the length of one side of a square is 12.0 m, what is the perimeter of the square?