What is the sum of protons and neutrons in an atomic nucleus?

balance number

atomic number

charge number

atomic mass

Boiling water in a pan is a good example of convection because___. A. The warm water rises and the cooler water sinks. B. The water is touching the bottom of the pan, but not the heat source. C. Boiling water can cook hard boiled eggs. D.

Since groundwater is largely unseen from the surface, how might you monitor how humans are affecting the amount of groundwater in a aquifer

Un autobuz merge prin oras patru statii drumul total fiind de 4 km. Prima statie reprezinta doua zecimi (2/10) din drumul total, a doua statie mai mica cu 3 hm decat prima, a treia estr cu 2 dam mai mult de cat jum din restul drumului.

A 3.00 kg object undergoes an acceleration given by a = (2.00 i + 5.00 j) m/s^2 find the resultant force acting on the object and the magnitude of the resultant force

A. Calculate the diffraction limit of the human eye, assuming a wide-open pupil so that your eye acts like a lens with diameter 0.8 centimeter, for visible light of 500-nanometer wavelength. Express your answer using two significant figures. B.

A student throws a 5.0-newton ball straight up. What is the net force on the ball at its maximum height? (1) 0.0 N (3) 5.0 N, down (2) 5.0 N, up (4) 9.8 N, down

An object starts from rest and falls freely for 40. meters near the surface of planet P. If the time of fall is 4.0 seconds, what is the magnitude of the acceleration due to gravity on planet P?

Consider two metallic rods mounted on insulated supports. One is neutral, another positively charged. The charged rod is brought close to the neutral one (no touching!

Which term identifies the dark smooth areas on the surface of the moon? craters terrae maria regolith

1. work is a transfer of 2. a small 20-killogram canoe is floating downriver at a speed of 2 m/s. what is the caanoes kinetic energy?