What information does a star's spectrum offer about the star?

While scuba diving with some friends, Deshawn notices that the air bubbles exhaled by his friends increase in size as they get closer to the surface of the water. Why does this occur and which gas law explains it?

A natural solid formed from elements and compounds in earth's crust is

If silicic rock is found in a core sample. What evidence does this provide about the rocks location?

Does observing a physical property of a substance change the identity of the substance? Explain your answer.

Two asteroids of equal mass in the asteroid belt between mars and jupiter collide with a glancing blow. asteroid a, which was initially traveling at va1 = 40.0 m/s with respect to an inertial frame in which asteroid b was at rest, is deflected 30.

An exhausted bicyclist pedals somewhat erratically when exercising on a static bicycle. The angular velocity of the wheels follows the equation? (t) = at? bsin (ct) fort?0, where t represents time (measured in seconds), a = 0.500 rad/s2, b = 0.

This boy uses a force to lift a heavy rock. (He is carrying it.) What can the boy do if he wants to lift the same rock more quickly? A. use greater upward force B. use greater downward force C. decrease the force of gravity D.

The difference in electronegativity values between H and O is 1.4. What type of bond will these elements form?

True or false. when light passes from one medium to another the speed changes.

Examples of a scalar