A solid body weighs 30 kg. When placed on the floor, the area of contact is found to be 15 m2 . Find the pressure exerted by the solid body on the floor. pls answer i need the answer quick

Calculate the amount of heat produced when 18000 coulombs of charge is transferred in one hour through a potential difference of 50v

Polly is pushing a box across the floor with a force of 30 n. the force of gravity is –8 n, and the normal force is 8 n. which value could describe the force of friction if polly could not move the box?

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest