Ashort-wave radio antenna is supported by two guy wires, 150 ft and 170 ft long. each wire is attached to the top of the antenna and anchored to the ground at two anchor points on opposite sides of the antenna. the shorter wire makes an angle of 65â° with the ground. how far apart are the anchor points?

The anchor point is 166.86 ft apart

Explanation:

The antenna and 2 wire from traingle ABC ( figure given below). we can immediately apply the law of sines

there are two angles for which this happens c = 52.18 or c = 127.81 degree

But 127.81 + 65 > 180 so the only valid angle for c is 52.18 degree.

that mean A = 180 - B - C = 62.82 DEGREE

THUS required distance a is by the law of sines

d) physical means can be used to separate the components of air.

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.