How many hectopascals corresponds to the pressure of a 15 mm high column of mercury?

You performed an experiment to find out how strong the net below a trapeze should be to safely catch a performer of mass 80 kg. Which of the following is a new scientific question that can be investigated in the laboratory? A.

A boat sailed for 7 hours at the speed of 80 km/h. It changed its speed to 95 km/h for the next 6 hours. How far had boat sailed in km.

Metamorphic rocks are formed from: deposition cooling magma eroded land heat and pressure

What was the name of the first steam-powered locomotive that was developed by george stephenson?

Quarks are thought to be the basic component of

How do you find the number of valence electrons in one atom of magnesium?

A ball on a cart is moving at a rate of 2 m/s. The cart suddenly stops and the ball continues to travel in the same direction at the same speed. This is an example of which Newton's Laws?

What causes nickel and certain other metals to be magnetic? A. the motion of protons in their atoms B. the pattern of electrons in their atoms C. their atoms have more electrons than protons D.

Elaborate on the reason why heating water up will increase the rate of dissolving for a solute.

An astronaut throws a rock. the rock travels through outer space at a constant velocity. which statement applies to the motion of this rock? A - an unbalanced force is acting on the rock, causing it to accelerate.