Physics, 18.09.2021 14:00 airiyannag0113
The drawing shows a person looking at a building on top of which an antenna is mounted. The horizontal distance between the personβs eyes and the building is 85.5 m. In part a the person is looking at the base of the antenna, and his line of sight makes an angle of 38.9o with the horizontal. In part b the person is looking at the top of the antenna, and his line of sight makes an angle of 41.6o with the horizontal. How tall is the antenna?
Answers: 2
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Kate is working on a project in her tech education class. she plans to assemble a fan motor. which form of energy does the motor convert most of its electric energy into? a. light energy b. motion energy c. sound energy d. thermal energy
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Physics, 22.06.2019 10:00
In a heat engine if 1000 j of heat enters the system the piston does 500 j of work, what is the final internal energy of the system if the initial energy was 2000 j? 1. write the equation 2.list out your known variables 3.plug the numbers into the equations 4.solve 5.write your solution statement that includes initial energy and final
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What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?
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The drawing shows a person looking at a building on top of which an antenna is mounted. The horizont...
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