Elephants are loaded into containers that are pulled up a ramp an inclined plane at 15 degrees to the ground .the container is held stationery by rope with a tension of 5000 newtons. if the mass of a container is 800kg , calculate the mass of the elephant

Given:

Inclined at 15 degrees

Tension of 5000N

Mass of container 800kg

Required:

Mass of elephant

Solution:

F = mgcos(theta)

5000 = m (9.8m/s2)cos(15)

M = 528.2kg

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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.