What scientific term is a well-tested explanation for a set of observations or experimental results? a.) law b.) theory c.) conclusion d.) method

Which of the following correctly describes the early view of catastrophism?

In all trials, the magnitude of the final velocity for g1 + g2 was less than the magnitude of any initial velocity. as mass increased, what happened to the velocity? the velocity decreased. the velocity increased. the velocity of g1 + g2 could not be measured. the velocity was not affected by the mass increase.

What is special about a dc circuit ?