How are the troposphere, stratosphere, and thermosphere important for supporting life on Earth? Which layer of the atmosphere is likely the most important for life on Earth?

What unit must be used what measuring mass?

Work and Energy: If a simple machine provides an increased output force, what happens to the output distance?

How is lightning related to static electricity?

A 5.4 g lead bullet moving at 261 m/s strikes a steel plate and stops. If all its kinetic energy is converted to thermal energy and none leaves the bullet, what is its temperature change? Assume the specific heat of lead is 128 J/kg · ◦ C.

A hot air balloon is ascending at a rate of 12 m/s. when it is 80m above the ground, a package is dropped over the side of he passenger basket. What is the speed of the package just before it hits the ground?

a fast ball travels at about 161kilometers/hr if this fast ball could keep its speed how long would it take this ball to travel 0.15 terameters?

You are traveling upstream on a river at dusk. you see a buoy with the number 4 and a flashing red light. what should you do?

If it takes 42 minutes to load 3 1/2 trucks, how many minutes will it take to load 6 1/2 trucks?

Which property of gold is a physical property? A. ability to bond B. reactivity C. ability to rust D. malleability

On a spring break vacation you decide to visit the grand canyon near flagstaff, arizona. then you head south to visit some friends in phoenix, arizona. while on the drive you notice that the temperature is increasing along the route.