Let A= (3.0 m, 20 0 south of east), B = (2.0 m, north), and C= (5.0 m, 70 0 south of west).
a. Draw and label A , B, and C with their tails at the origin. Use a coordinate system
with the x-axis to the east.
b. b. Write A, B, and C in component form, using unit vectors.
c. c. Find the magnitude and the direction of D = A + B+ C.

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.

ice to water 1 water to vapour 2 latent heat

the small 0.38-kg slider is known to move from position a to position b along the vertical-plane slot. determine (a) the work done on the body by its weight and (b) the work done on the body by the spring. the distance r = 0.70 m, the spring modulus k = 154 n/m, and the unstretched length of the spring is 0.53 m

explanation:

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