1. Define the term 'centre of gravity of a body'.

Which of these best describe why Earths inner core is a solid

a boat is traveling a distance of 90 km at a speed of 30 km/s, how long will it take to reach its destination?

The voltage (or electric potential) of battery determines a. how much net electric charge is in the battery b. how much work the battery can do on an electric charge c. how much electric field is around

A cetain car weighs 25,000 N. Calculate the mass of the car. 245.000 kg 25,000 kg 9.81 m/s2 2,500 kg

Which law is being demonstrated when a swimmer moves forward through the water?

At what temperature did the substance in the test tube into a solid?

What occurs when the velocity of Earth is doubled? a. The orbit of Earth around the Sun becomes smaller b. The orbit of Earth does not change c. The Earth escapes the Sun d. The orbit becomes more elliptical

When is a body said to be at rest

27. Calculate the impulse when an average force of 10 N acts on a cart for 5.0 s.

A boy on a bicycle is resting at the top of a hill then he rides his bicycle down the hill describe how the boy potential and kineti energy differ at the top middle and bottom of the him