A physics student is standing on an icy pond in her ice skates. The ice has very little friction and she needs to move to the north shore of the pond, and is having trouble moving. She has a very heavy physics book in her arms and decides to throw it parallel to the ice. Which way should she throw it to enable her to get closer to the north shore, and which physics principle explains what happens after the book is thrown?

Samir watches a 100-minute movie on his spaceship. maria's spaceshipe flies in the same direction as samir's spaceship but she observes his move to last 125 minutes and his spaceship to be 40 m long. how long does samir observe his own spaceship to be? according to an observer on earth, planet x is stationary. maria and samir depart earth on their spaceships at the same time, each flying at 0.5c. maria flies toward planet x and samir flies in the opposite direction. according to maria, her voyage to planet x takes 9 years. how many years does marias voyage take according to samir?

Which two particles are found in the center of an atom

How much energy must a refrigerator absorb from 225 g of water so that the temperature of the water will drop from 35°c to 5°c