The spectra of Type II supernova contain no hydrogen lines
a. True
b. False
Indicate whether the statement is true or false
False
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What is Newton's First law of motion?
A. Every mass exerts a force on any other mass that is proportional to the product of the masses divided by the square of the distance between them. B. A body continues in a state of rest or uniform motion in a straight line unless made to change that state by forces acting on it. C. When two bodies interact, they create equal and opposite forces on each other. D. Force equals mass times acceleration, F=ma.
A radian unit of angle (defined as arc length divided by radius) has what dimensions?
A) meters B) m-1 C) degrees D) dimensionless E) grads
As an artillery shell travels from the gun to the target, the projectile's vertical speed changes, but its horizontal speed stays constant
a. True b. False Indicate whether the statement is true or false
A simple series circuit consists of just a 3.4-µF capacitor and an 80-mH inductor, with no appreciable resistance. At t = 0 the capacitor has charge 5.4 µC and the current in the inductor is zero
(a) How long after t = 0 will the current in the circuit be maximum? (b) What will be this maximum current?