What must differ between the atom of 2 different elements? protons in the atom electrons in the atom neutrons in the atom protons and neutrons in the nucleus

An example for non periodic motion.

These type of winds are located between 30 and 60 degrees latitude on the globe. A. Trade Winds B. Westerlies C. Polar Easterlies D. None of the above

How does Earth get energy from the sun?

Which of the following is true of our current knowledge of electrons?

Work done by a constant force equal the magnitude of that is force multiplied by what?

A two stage rocket leaves its launch pad moving vertically with an average acceleration of 4 m/s2. at 10 s after launch the first stage of the rocket (now without fuel) is released.

A liquid filled sealed system has cylinders with movable pistons on each end. The face of one piston has an area of 5 cm². The other piston has an area of 500 cm² and is supporting a weight of 2 kN on it.

A turntable is spinning on a frictionless axle when a ball of putty is dropped onto it from above. The putty sticks to the turntable when it lands. Is angular momentum conserved for the turntable and putty (the system) during this process?

A cheetah can run from 0 to 70 mph in 2.2 seconds. what is the cheetah's top speed in m/s?

Which statement about how light travels is true? A Light waves need a medium to travel, and they travel at the same speed even if the light source is moving.