A 55 kg person moves at the constant speed of 7 m/s along a straight stretch of track for 20s. How far does he travel in this time?

What would be the average luminosity of the accretion disk, if it continuously radiated that energy over a period of 12 billion years?

What is the route number for (697 and 129)

The two stars in a certain binary star system move in circular orbits. The first star, Alpha, has an orbital speed of 36 km/s. The second star, Beta, has an orbital speed of 12 km/s. The orbital period is 137 d.

Terry says that if an object has no acceleration, then no forces are exerted on it. Sherry doesn't agree, but can't provide an explanation. They both look at you. What do you say?

True or false Destructive interference takes place when the crest of one wave balances out or cancels out the trough of an interfering wave.

How does mass affect the speed of an object

Which of the following tools can be used to determine humidity? Select all that apply. Barometer Hygrometers Anemometer Hair Thermometer [can use more than one answer]

For a cars speedometer what is the calculated speed over an entire trip

How does gravity influence our annual calendar?

A 0.500 kg block is sitting on a horizontal, frictionless surface. The block is connected to a horizontal spring with a force constant of 124 N/m. The other end of the horizontal spring rests against a wall. When a 100.