Suggest and explain two ways to reduce heat loss through the doors of the house.

Which type of sedimentary rock is formed from rock and mineral fragments weathered from rocks at earth's surface?

A 42 kg is lifted to a height of 9 m. What is the gravitational potential energy?

Which part of a mountain would have the lowest temp?

Which of the following is not true about the open ocean? Scientists have identified all the species in the ocean. There are billions of plankton that provide over half of the earth's oxygen.

Which would ultimately cause the armature in an electric motor to spin?

An astronaut weighs 104 newtons on the moon, where the strength of gravity is 1.6 newtons per kilogram. What would she weigh on Mars?

A chemical bond formed when Adams share three pairs of electrons is A. an ionic bond B. a single bond C. a double bond D. a Triple bond

A 1100 kg car rounds a circular turn of radius 24.6 m. Of the road is flat and the coefficient of static friction between the tires and the road is 0.59, how fast can the car go without skidding

What is the momentum of a 15 kg tire rolling down a hill at 3 m/s? 5 kg • m/s 18 kg • m/s 45 kg • m/s 60 kg • m/s

Which of Newton's laws, when combined algebraically with his law of universal gravitation, can be used to calculate Earth's mass? A) first B) second C) third