What is a pulsar?

a. the remains of a low-mass star after it explodes
b. a spinning neutron star emitted radio waves
c. another name for a protostar
d. the stage before a dying star becomes a supernova

Find v1, the speed of the fluid in the left end of the main pipe. express your answer in terms of h1, h2, g, and either a1 and a2 or γ, which is equal to a1a2.

X-ray crystallography is used to see the structure of molecules. scientists have used the technique to find the structure of cholesterol an important biological molecules knowledge of a structure of cholesterol is because it may affect?

Cereal plants gain chemical potential energy as they grow. which form of energy is converted to create the chemical potential energy?