If the vector represents velocity this number represents the speed

A book with a mass of 1.5kg was lifted 2 meters. How much work was done

Which object has more heat energy, a hot cup or a cold cup? why

Why is it not possible to see the other waves on the electromagnetic spectrum?

If an object is moving with constant velocity, what do you know about its acceleration?

The increase in the volume of 10cm³ of mecury when the temperature rises by 100°C is 0.8 cm³. What is the cubic expansivity of mecury?

Can a machine be more than 100% efficient? yes no impossible to determine

A 290-kg flatcar 25 m long is moving with a speed of 7.0 m/s along horizontal frictionless rails. A 80-kg worker starts walking from one end of the car to the other in the direction of motion, with speed 3.0 m/s with respect to the car.

The electric field across the plates of a capacitor will decrease if the plate separation ___ and the potential is not changed. decreases increases

A crystalline substance that contains water

If his truck pulls forward with a force of 2,750 newtons and the weight of the trailer pulls backward with a force of 2,790 newtons, which of the following statement is true?