What instrument is used routinely to check a person's exposure to radiation?

How many significant digits are measurement 0.00210 mg?

Explain why a parachute would be useless if you went to the Moon?

The main difference between speed and velocity involves A. gravity. B. weight. C. distance. D. direction.

If a body goes from 10 m/s to 50 m/s in 8 seconds, what is it's acceleration?

Which of the following account for the difference between radio waves, infrared waves, and ultraviolet rays? A. speed B. frequency C. amplitude D. wavelength

The element that is most abundant in earth is

What is true about coal as an energy source

A car is moving with a speed of 22 m/s. The driver then brakes, and the car comes to a halt after 6.5 s. What is the distance covered by the car after the driver brakes, until it comes to a stop? A) 36 m B) 72 m C) 140 m D) 210 m

Which of the following best explains why an explosive charge in a cannon can cause a cannonball to fly out of the cannon with a high velocity? A. because chemical potential energy can convert to gravitational potential energy B.

Distance divided by time what is velocity