The insulation in an old house is able to hold in 12,000 J of the 36,000 J that were used to heat it up. How energy efficient is this insulation?

Which two issues have increased the need for alternatives to fossil fuels?

A sailboat is heading directly north at a speed of 20 knots (1 knot 50.514 m/s). the wind is blowing toward the east with a speed of 17 knots. (a) determine the magnitude and direction of the wind velocity as measured on the boat.

How are breeder reactors different from nuclear reactors

In the following situations, which one does not have kinetic energy? A. a baseball in a catcher's glove B. a lady walking slowly across the street C. a hockey puck sliding on the ice D. a man running around a track

What does a map scale 1:25,000 mean

Stephen buys a new mop he travels 3 km south and the. 4 km east and then 3km north how far does he need to go to get back. To where he started

The elements with the largest atomic radii are found in the

Students will explain, distinguish the difference between the 4 states of matter

Name one way that a mixture can be separated

The Huka Falls on the Waikato River is one of New Zealand's most visited natural tourist attractions. On average, the river has a flow rate of about 300,000 L/s. At the gorge, the river narrows to 20-m wide and averages 20-m deep.