What is made of two protons and two neutrons?

What does the stomach acid have in protein digestion

A radiation detector measures the radioactivity of a piece of radium by catching and counting alpha particles it emits. According to quantum physics, making this measurement affects the ___.

A 55.0-kg woman stands at the rim of a horizontal turntable having a moment of inertia of 480 kg · m^2 and a radius of 2.00 m. The turntable is initially at rest and is free to rotate about a frictionless vertical axle through its center.

The capacity of the air to hold water vapor: Group of answer choices 1. decreases with an increase in temperature. 2. increases with a decrease in temperature. 3. increases with an increase in temperature. 4. increases with an increase in pressure.

What is hemispheric specialization?

Which element is most likely to carry electric current easily?

What is energy? it's from my physics book

An object is thrown upward with a speed of 12 m/s on the surface of planet x where the acceleration due to gravity is 1.5 m/s2. how long does it take for the object to reach the maximum height?

How fast must a 0.142-kg baseball move in order to have the same momentum as the bus?

What is resistance? Difference between resistance and resistivity.