Which of the following is a characteristic of a mixture? A. It has varying properties. B. It has a fixed composition. C. It only contains pure substances. D. It has both varying properties and a fixed composition?

What is the unit for measuring electric current? volt ampere ohm coulomb

Prot9ns and neutrona are in the. Of an atom; electrons surround the nucleus

Squaw Valley ski area in California claims that its lifts can move 49800 people per hour. If the average lift carries people about 190 m (vertically) higher, estimate the maximum total power needed. (Assume an average mass per person of 70 kg.) W

A car travels at a velocity of 10 m/s north for 50 s. Which of the following equations correctly determines the car's displacement?

2. In a series circuit, all resistors have identical currents. a) What is the relationship between the power and resistance of these resistors? b) In a parallel circuit, all resistors have identical voltages.

Why does the percentage of water vapor vary?

A situation that restricts something

Why is the sky blue all the time

Where did the rotational kinetic energy of the earth come from?

What is the mass in kg of a leopard in a tree if the tree branch is 36 m up and the leopard's gravitational potential energy is 29988 J?