A mass on a spring is observed to complete 15 oscillations in 30 seconds. What are the period and the frequency of motion?

If we see a supernova of a star that is 25 light years away from us, we know it exploded 25 years ago. True False

A paper clip is pushed horizontally off a table with speed 1.5m/s. If the table has a height of 1.1m how far from the table does the paper clip land? A. 1.4m B. 1.1m C. 0.47m D. 0.71m

Which of these diagrams best represents the steps in the formation of planets? A) The sun is born > The clouds rotate at high speed > The clouds flatten into an elliptical disc > The planets are born B) The clouds flatten into a disc > The sun is

An ideal blackbody in physics and astronomy is an object that

What causes an ion to have a net negative charge

Eli rolled a ball down the cement sidewalk as hard as he could. The ball rolled for less than a minute before it came to a stop. What force acted to slow and finally stop the ball? A.

Which of the following statements best explains why a book resting on a table is in equilibrium? a. The acceleration due to gravity is 9.8 m/s 2 for both the book and the table. b. There is a net force acting downward on the book. c.

About how long does it take for sound to travel 1 Km?

You can increase the capacitance of a capacitor by

What is Hook's law in elasticity