What is the definition of physical change

What was the main view how the world worked geologically prior to the 1960s? It was generally believed that continents and oceans moved. It was generally believed that mountains were produced by vertical forces.

The angular size of the smallest features that a telescope can see is called the angular

How much effort force would be needed to roll a barrel with a resistance force of 100N up an inclined plane with a height of 2m and an inclined plane of 8m?

A hockey goalie is standing on ice. Another player fires a puck (m = 0.170 kg) at the goalie with a velocity of + 44.6 m/s. (a) If the goalie catches the puck with his glove in a time of 5.

If you could chooses between to nearly identical products the one that is free and the other you have to pay for which would you choose why

What is a unit of mass?

Which is not an era of the Phanerozoic eon

Newton's third law states that when an object exerts a force on another object, the second object exerts an equal but opposite force on the first object. Which of the following shows an example of this? a.

A car is moving 14.4 m/s when it hits the brakes. It slow from 78.8 m, which take 9.92s. It then accelerates at 1.83 m/s 2 for 4.50 s. What is the total displacement?

Select all of the answers that apply. What conditions on Earth are unique from other planets in our solar system?