What is the length of the x-component of the vector shown below? A. 65.8 B. 90.6 C. 112 D. 33.2

The correct answer is - option b. 90.6

Explanation:

The scalar x-component of a vector can be expressed as the product of its magnitude with the cosine of its direction angle

If you shine a light straight down onto that vector, then the length of its shadow on the x-axis is  -

x-component = 112· cosine(36°)

x-component = 112 · (0.8090)

x-component = 90.60

Thus, The correct answer is - option b. 90.6

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.