What is a likely consequence of preventing prescribed burns to forest ecosystems?
a. natural wildfires will burn longer and hotter when they occur because there is more underbrush and fuel available.
b. forest ecosystems will remain healthier overall, due to retention of habitats.
c. home owners will be better protected against damage from natural wildfires.
d. natural wildfires will occur less frequentl?

During your summer internship for an aerospace company, you are asked to design a small research rocket. the rocket is to be launched from rest from the earth's surface and is to reach a maximum height of 910 m above the earth's surface. the rocket's engines give the rocket an upward acceleration so it moves with acceleration of 16.0 m/s2 during the time t that they fire. after the engines shut off, the rocket is in free fall. ignore air resistance.

Alarge truck is moving 22.0 m/s. if it’s momentum is 125,000 kg • m/s, what is the trucks mass

Mike walks 100 meter north, then walks 30 meters south. after this, he walks another 10 meters north. what is the magnitude of his total displacement during this walk,in meters?