Two trucks with equal mass are attracted to each other with a gravitational force of 5.3 x 10 -4 n. the trucks are separated by a distance of 2.6 m. what is the mass of either of the trucks?

7327 kg or 7.3 tons

Explanation:

We have Newton formula for attraction force between 2 objects with mass and a distance between them:

where is the gravitational constant on Earth. is the masses of the 2 objects. and R = 2.6m is the distance between them.

is the attraction force.

or 7.3 tons

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.