Calculate the resistance of a piece of wire of length 200cm given that its resistivity is 5.4×10^-6. If the cross sectional area of the wire is 9.5×10^-5cm^2

If steel is more dense that lake water, why can a boat float

Imagine that someone pushes one marble toward a motionless marble. would there still be action-reaction forces involved in the collision? how might the marbles’ motions be changed? ?

Agraduated cylinder contains 63.0 ml of water. a piece of gold, which has a density of 19.3 g/ cm3, is added to the water and the volume goes up to 64.5 ml. calculate the mass in grams of the gold that was added to the water. explain how you got your answer.