If the slope of a position versus time graph is downward what kind of motion produced the graph

How do plants and animals rely on each other to maintain the atmospheric oxygen and carbon dioxide content?

At a construction site a pipe wrench struck the ground with a speed of 31 m/s. (a) From what height was it inadvertently dropped? (b) How long was it falling?

If a raindrop is 0.05 cm3 in volume, what would the volume of an avogadro number of raindrops be?

Compare the magnitude and range of the four basic forces - gravitational, electromagnetic, weak nuclear and strong nuclear.

Can anyone explain what weak force could do? I've been reading comics and I don't understand what they can do when it says "they could manipulate the weak force." All I know that it's about the four fundamental forces

What would you be most likely to find if you returned to the solar system in 10 billion years?

Opposite chargers and like charges

A distance - time graph indicates that an object moves 100 m in 4 s and then remains at rest for 6s what is the average speed of the object

A scientist is conducting research to determine how much pressure a dam can withstand. Why are good observations important to his research?

What is the ratio of escape speed from earth to circular orbital speed? ignore air resistance.