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

Technician A says that a flexible coupling may be used to connect the steering shaft to the gear input shaft. Technician B says that if the coupling breaks the steering will have a loose feel. Which technician is correct? A) Technician A.

A sample of a substance has a high density, yet a low particle motion. This sample must be a A) gas. B) liquid. C) plasma. D) solid.

What two variables are multiplied together to calculate mass?

On a road with two or more lanes of traffic going in the same direction, you approach an emergency vehicle that is stopped with its warning lights on. you must:

Why dont we use a power water engine

Determine the amount of potential energy of a 5 Newton's book that is moved to three different shelves on a bookcase. The height of the shelves is 1.0 meter, 1.5 meter, and 2.0 meter

Which atom is involved in giving your heart energy to beat? carbon gold oxygen iron

Which of the following is the most accurate statement concerning the properties of matter? a. they can be written as symbols b. they can be observed and measured c. they cannot be tested or verified d. they change with the amount of matter present

Danilo is sliding down a slide. What forces are acting on him as he slides

If you want your investment or savings account to be easily turned into cash without losing its value, you should consider the?