Lord Kelvin's calculations for dating the earth were correct, but his assumption that earth was undergoing radiant cooling from combustion of the sun was incorrect, thus he arrived at an incorrect age of 15-20 million years old.

a) true

b) false

For a star with the mass and size of our sun and having a planet with three times the mass of jupiter, where would the center of mass of this system be located, relative to the center of the star, if the distance from the star to the planet was the

The diagram shows changes of state between solid, liquid, and gas. The atoms of a substance gain energy during a change of state. Before the change, the atoms are close together and cannot slide past one another.

In a battery electrons flow from the what terminal to the what terminal

A river is flowing south at a rate of 3 m/s. Steven can roe directly across the river if he aims the raft 30 degrees. What rate is Steven rowing at

A stuntman drives a car with a mass of 1500 kg on a drawbridge. The car accelerates with a constant force of 10,000 N. While he is driving, the drawbridge is raised to an incline of 30°.

Which of the following is an example of the strong nuclear force acting in an atom? A. A proton repelling a proton B. A neutron attracting a neutron C. A neutron repelling an electron D. An electron attracting a proton

Does the air in our atmosphere have mass?

Your instructor hands you a closed flask partly filled with room-temperature water. When you hold it, the heat transfer between your bare hands and the flask causes the water to boil. Quite impressive! How is this accomplished?

Drag each label to the correct location on the chart. Sort the items based on whether they are simple machines or compound machines. sewing machine pair of tongs fishing rod and reel seesaw wheelbarrow crane Reset Next

How long do you stay in school here in Auburn schools