James is driving north, at 100km/hour. He uses cruise contrast speed, and the road is straight. What is his rate of acceleration?

A cart is pushed at a supermarket for a distance of 30 m South, then 15 m West and finally 5 m West. This entire motion lasts for 30 minutes.

Which is an example of a chemical reaction? A: paper folded into tiny pieces B: paper burned and turned into smoke C: paper soaked in water D: paper shredded and turned into pulp

True or false a microchip lets computers process infomation very quickly

A 4 kg vase sits on a shelf at a height of 1.2m. How much gravitational potential energy is added tot eh base when it is lifted to a shelf of height 1.4 m?

Warm air and water rise because ...

Copernicus and Kepler were astronomers who had proposed theories about the solar system. Copernicus believed that Earth and other planets circled a stationary sun. Kepler believed that the sun rotated like planets.

In which one of the following locations can a person hear the echo of a sound? *A. * Less than 16.6 meters in front of the reflecting surface *B. * At least 33.2 meters behind the reflecting surface *C. * Less than 33.

A hot-air balloon is 150 feet above the ground when a motorcycle passes directly beneath it (traveling in a straight line on a horizontal road). The motorcycle is traveling at 40 mph.

When is a body said to be at rest

What should i put on a greeting card for the birth of quartzite