subject
Physics, 23.04.2020 15:51 birdman6360

A construction crew wants to hoist a heavy beam so that it is standing up straight, perpendicular with the ground. They tie a rope to the beam, secure the base, and pull the rope through a pulley to raise one end of the beam from the ground. When the beam makes an angle of 40° with the ground, the top of the beam is 8 ft above the ground. The construction site has some telephone wires crossing it. The workers are concerned that the beam may hit the wires. When the beam makes an angle of 60° with the ground, the wires are 2 ft above the top of the beam. Will the beam clear the wires on its way to standing up straight? Explain.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 07:20
Use the information presented in the graph to answer the questions. which segments show acceleration? which segment indicates that the object is slowing down? what is the velocity of segment b? what is the acceleration of segment b?
Answers: 3
question
Physics, 23.06.2019 00:50
Which sentences describe point source pollution? in this type of pollution, the source of the pollution is single and easily identifiable. when runoff water from the melting of snow mixes with debris, it creates pollution. the runoff water, mixed with pollutants, reaches large areas with disastrous effects. alternatively, when a wastewater treatment plant releases harmful chemicals into a stream, the chemicals pollute the stream water because they are not treated for safety.
Answers: 2
question
Physics, 23.06.2019 08:30
(asap) uneven heating of the earth's surface is due primarily to the position of the equator, north pole, sun, or moon?
Answers: 1
question
Physics, 23.06.2019 10:50
In the graph, each sinusoidal curve shows the shape of a vibrating string at a different moment. for which values of x does a node occur? (let k = an integer from -2 to +2.) k + 0.5 0.5k k 2k + 1.5
Answers: 1
You know the right answer?
A construction crew wants to hoist a heavy beam so that it is standing up straight, perpendicular wi...
Questions
question
Mathematics, 14.01.2020 03:31
question
Mathematics, 14.01.2020 03:31
question
Mathematics, 14.01.2020 03:31