Meg lifted a box of books with a mass of 20 kg from the floor to a shelf 1.4 m off the ground. The applied force was equal to the weight of the box of books. How much work did Meg do?

A total distance of 4.5km. The overall journey takes 0.62h, whats the average velocity

What is an incomplete metamorfisis

Explain why science can answer some questions, but not others?

State one difference between solar cells and solar heating systems?

What is the desnity of a material that has 2500 grams and a volume of 500 cubic centimeters in grams per cubic centimeter

Kara is writing a science-fiction story. In the story, Earth no longer experiences day and night. To return Earth to normal, which action should the heroine of the story take? A. She should get the Sun to travel around Earth again. B.

What is the kinetic energy of a 55-kilogram skier traveling at 9.0 meters per second

A force is applied to a 2.8 kg mass and produces 3.9 m/s 2 acceleration. what acceleration would be produced by the same force applied to a 8.2 kg mass? answer in units of m/s 2.

When 2 objects collide and stick together this is referred to as

Fill in the blanks to complete each statement about the heating of Earth's surface. Earth takes in thermal energy from the Sun in a process called Sunlight strikes Earth's surface at different angles. This angle is called the angle of Done Intro