What two things must a measurement include?

The first one is a number but what is the second one?

Acceleration of a car increases its velocity from 0 m/s to 20 m/s in 6 seconds

A 55 kg block needs to be lifted 30m. Once lifted, what is the block's potential energy?

Which of the following is an example of radiation? a. A metal spoon becomes warm after being set in a pot of boiling water. b. Warm water rises because it is less dense than cool water. c.

A dc motor uses what to move wires A. Differences in electric resistance B. static electricity C. An electromagnetic field D. Flowing protons

What type of collision is it if it bouunces of of each oyher?

On his fishing trip Justin takes the boat 25 km south. The fish aren't biting so he goes 10 km west. He follows a school of fish 15 km north. What distance did he cover? What was his displacement?

n open rectangular tank is filled to a depth of 2 m with water (density 1000 kg/m3). On top of the water there is a 1 m deep layer of gasoline (density 700 kg/m3). The width of the tank is 1 m (the direction perpendicular to the paper).

Is the sun considered a star?

If I get a spare in one frame and then roll a 1 and 5 in the next frame, what would my score for the spare be? A 10 B 11 C 16 D17

2x^2:3=dg solve for x