Which of the following laws best define this statement?

The total amount of energy in a closed system stays the same

OA) Kepler's law

OB) Avogadro's law

OC) The law of negative energy

D) The law of conservation of energy

Which of the following causes a precipitate to form? A. Atoms combining in a solution to form a solid B. Volcanoes erupting and magma cooling C. Lava crystallizing D. Minerals undergoing changes in pressure

What is an oscillator?

What is the weight of an object that has a mass of 3.5kg

A swimmer can swim 4.00 km/h in still water. He heads south across a river that flows east at 2.00 km/h. The river is 0.500 km wide. His velocity wih respect to the ground is

In order to useful, a variable must be measurable as a numeric value. True False

During which period did the first large herbivores and carnivores appear?

What is the reason behind the tail of a comet moving away from the Sun? A The gravity of Jupiter pulls it away from the Sun. The nucleus of the comet propels it away from the Sun. C. The radiation pressure and solar wind propels it away from the Sun.

Calculate the energy released as heat when 51.60 g Cu 2 O (s) undergo oxidation at constant pressure.

During summer vacation, Juan traveled a total distance of 400 miles. His trip took 8 hours. What was the average speed during his trip?

Where Pabs is absolute pressurePg, is gauge pressure, and Patm is atmospheric pressure. For example, if your tire gauge reads 34 lb/incz (pounds per square inch), then the absolute pressure is ...