A system consists of electrons, protons, and neutrons. It contains 250 neutrons and 150 protons.

Explain why Einsteins general relativity theory is important to the makers of GPS system

What are 4 things that can happen to a light wave when it hits an object?

Inside a star the force of gravity is balanced by

A metal block weights in air and 460gf when completely immersed in water. calculate the upthurst on the block?

You spray your sister with water from a garden hose. The water is supplied to the hose at a rate of 0.111 liters per second and the diameter of the nozzle you hold is 5.79 mm. At what speed does the water exit the nozzle

Which solution has the greatest number of hydroxide ions? baking soda, pH = 9 milk, pH = 6 tomato juice, pH = 3.5 vinegar, pH = 2A substance is boiled repeatedly and stirred, but the solute never mixes with the solvent.

Part of the suns energy that reaches the Earths surface is absorbed by land and water as heat. The earths surface then releases heat back into the atmosphere Which of the following is true about this solar energy that is absorbed and released by

When Emeka was first training his dog, Smooches, to heel he would give Smooches a treat when she stayed close during walks. Now Smooches stays right by Emeka's side, even when she is not on her leash. In this case, a.

What must vectors have in common in order to be added?

After one species disappears the other species in the ecosystem ...