About 100 years ago a lot of people couldn’t turn on the lights, use a microwave to heat up your dinner, no hot water for a shower and no bus or car to get to school. Today, where does most of the electricity required to do all these things come from ?

The diagrams show objects’ gravitational pull toward each other. which statement describes the relationship between diagram x and y? gravity attracts only larger objects toward one another. gravity attracts larger objects only if they are close to one another. if the masses of the objects increase, then the force between them also increases. if distance between the objects increases, then the amount of force also increases.

Complete each row of the table below by filling in the missing prefix or missing exponent.

Alidded glass container is filled with a colored gas. after a period of time, it is observed that the gas is uniformly spread throughout the box and that the movement has slowed considerably. next, a warm iron plate is carefully placed under the box. why is there resumed movement of the gas in the container?