An object with a mass of 100 g is in free fall. What is the speed of the object after it has fallen for 4 seconds?

A. 39 m/s

B. 9.8 m/s

C. 25 m/s

D. 96 m/s

A transformer is used to convert mechanical energy to electrical energy. answer true false

Ways the Magnitude of force can be Harmful?

Dimensionless quantity has unit or not

3. An object thrown vertically upwards reached a maximum height of 5.0 m. Calculate: (a) the velocity of the object when thrown Ignore air resistance. [g = 9.81 m s-2]

Which of the following is analogous to the pipes in an electrical circuit? A. capacitors storing the incoming charge from the battery B. large resistors causing restrictions to the flow of charge C.

What do you think swarming locusts affect planted crops?

What happens when a hydrogen atom acts like a nonmetal in a chemical reaction?

Which set of numbers best describes the displayed weights on a digital scale that shows each weight to the nearest half pound?

What is the equivalent volume occupied by three milliliters of water? three kilograms three cubic centimeters three centigrams three centimeters

Which list gives the proper sequence of energy changes that occur in a hydroelectric plant? The mechanical energy of the turbine rotates the generator parts The turbine blades capture the kinetic energy of the water Electrical energy is transferred