Isotopes of an element have a different number of: protons neutrons electrons all of the above

What are 3 common sources of voltage difference?

Refrigerant 134a enters an insulated diffuser as a saturated vapor at 80°f with a velocity of 1453.4 ft/s. at the exit, the temperature is 280°f and the velocity is negligible.

What's the a chicken nugget

Protons are made up of ___ up quark (s) and ___ down quark (s). a. 1, 1 b. 1, 2 c. 2, 1 d. 2, 2

A train travels 79 kilometers in 2 hours, and then 77 kilometers in 3 hours. What is its average speed? Answers? and Units?

Does aliens exist in this world

An olympic sprinter can go from a state of rest to 11 meters per second in 10 seconds. What is the sprinter's average acceleration?

If a construction worker drops a wrench from the top of a building 375 feet high the wrench will be s (t) = - 16t2 + 375 feet above the ground after t seconds. Determine the velocity of the wrench 4 seonds after it was was dropped.

Astronomical methods that have provided insights about universe

What is an ethical vacuum?