(double points) a mechanic used a wrench 0.6 meters long to loosen rusted lug nuts on a truck wheel. by standing on the end of the wrench, he was able to apply his entire 100 kg weight to the wrench. how much torque did he apply?

Torque,

Explanation:

It is given that,

Length of the wrench, l = 0.6 m

Mass of the wrench, m = 100 kg

We know that the torque applied by mechanic is given by :

So, the torque applied by the mechanic is 588 N-m. Hence, this is the required solution.

answer: the exterior temperature of commercial jet planes as they leave the stratosphere and return to the ground increases steadily.

explanation:

the lower most layer of atmosphere is troposphere which extends from 0 to 12 km above the surface of the earth. the temperature initially decreases as distance is increased from the earth's surface. commercial jets fly in lower part of the stratosphere. the stratosphere extends upto 50 km. the temperature in stratosphere starts rising again due to presence of ozone which traps the uv rays.

thus, when the planes leave the stratosphere and return to the ground, the exterior temperature increases steadily.

grav forces affect all objects magnetic forces affect magnetic objects and electric currents