4. Suppose a man places an insulating slab on the ground and puts a large aluminium sheet on top. Will he get an electric shock if he touches the aluminium sheet next morning? Support your answer with reason.

Using a wheel and axle, a farmer is trying to lift a bucket of water from the bottom of a well. the larger wheel has a radius of 40 cm compared to the axle that has a radius of 10 cm. if a bucket of water is 50 n, then how much effort is required to raise it? 12.5 n 200 n 2 n 500 n

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

Which statement is the best definition of an atom? a) anything that has mass and occupies space. b) the smallest particle that has the properties of an element. c) a substance that cannot be broken down chemically into simpler substances. eliminate d) the smallest unit of a substance that exhibits all of the properties characteristic of that substance.