A racehorse runs 1500m full circle in a racetrack and returning to start. What is the displacement of the horse?

According to the law of conservation of matter, which chemical equation represents a possible chemical reaction? A. CaCO3 Fe2O3 B. 2Na + Cl2 2NaCl C. 4Fe + 3O2 C6H12O6 + 6O2 D. C6H12O6 + 6O2 CaO + CO2

In what ways is an understanding of thermodynamics useful in everyday life

Which of the following is a unit of speed? A) h B) nm C) cm/y D) km/s^2

3. A 3.0 * 10-3 kg copper penny drops a distance of 50.0 m to the ground. If 65 percent of the initial potential energy goes into increasing the internal energy of the penny, determine the magnitude of that increase.

If a ceiling fan is meant for the ceiling, then why do we put it together not on the ceiling?

Which of the following would be considered basic science questions? A. How can cars be made safer? B. What is the best way to improve a gas engine? C. Why do many birds have colorful feathers? D. What are the stages in the life cycle of a star?

Which description does the phrase "mechanical advantage" most closely relate to?

The breaker of a certain circuit installed in a house shuts down at 10 amps. Can we connect a water heat of 2 kW to a power outlet of 240 V in this circuit?

What happens to the lights in a series circuit?

Which elements would you expect to be similar to technetium