Ja-Anna, has a mass of 45 kg, climbed 3m up a ladder to rescue her cat from a tree. how much work against gravity did she do?

A relationship that benefits one but does not harm or benefit another would be considered

Mrs. Adams class decides to try an experiment. She rubs a blown up balloon on Sandy's head. After this, she takes the balloon and places it on the side of the wall, where it sticks, instead of falling to the ground.

Which of the following best describes the gas trapped in a sealed balloon? A) The particles move slowly. B) The particles do not often collide with one another. C) The movement of the gas particles keeps the balloon inflated.

If a train is slowing down it is accelerating

What was the greatest contribution of the monasteries? A. Illuminated manuscripts. B. Cloisters. C. Sculpture. d. Transepts

Which type of mass movement makes a pattern of wrinkles, or terraces, on hillsides? landside mudflow soil creep rock slide

How is sun related to nuclear, electromagnetic, and heat energy?

Studies of gymnasts show that their high rate of injuries to the Achilles tendon is due to tensions in the tendon that typically reach 12 times body weight.

The total mechanical energy of a system: A) can never be negative. B) is constant, if only conservative forces act. C) is either all kinetic energy or all potential energy, at any one instant.

If the torque on an object adds up to zero: A) the object could be accelerating linearly but it could not be turning. B) the object is at rest. C) the object cannot be turning. D) the object could be both turning and accelerating linearly.