or approximately 
to two significant figures
. Using basic. trig for a right triangle, the vertical component of that force is 
, in the y-direction. At the very end of the pole where the string is attached, however, the pole is creating a torque, given by 
. In this case, 
(distance from center of pole to the end) and 
, so the torque from the pole is 
.
. From right triangle trigonometry, the vertical component of the tension in the rope is 
. Because the rope is also creating a torque of 
(length of pole), the force is 
:
A man is attempting to raise a 7.5-m-long,
...
Answers: 3
Another question on Physics
Physics, 22.06.2019 01:30
In a thunderstorm, charge builds up on the water droplets or ice crystals in a cloud. thus, the charge can be considered to be distributed uniformly throughout the cloud. for the purposes of this problem, take the cloud to be a sphere of diameter 1.00 kilometer. the point of this problem is to estimate the maximum amount of charge that this cloud can contain, assuming that the charge builds up until the electric field at the surface of the cloud reaches the value at which the surrounding air breaks down. this breakdown means that the air becomes highly ionized, enabling it to conduct the charge from the cloud to the ground or another nearby cloud. the ionized air will then emit light due to the recombination of the electrons and atoms to form excited molecules that radiate light. in addition, the large current will heat up the air, resulting in its rapid expansion. these two phenomena account for the appearance of lightning and the sound of thunder. take the breakdown electric field of air to be eb=3.00ă—106n/c. part a estimate the total charge q on the cloud when the breakdown of the surrounding air is reached. express your answer numerically, to three significant figures, using ďµ0=8.85ă—10â’12c2/(nâ‹…m2) .
Answers: 2
Physics, 22.06.2019 11:00
Afisherman notices that his boat is moving up and down periodically without any horizontal motion, owing to waves on the surface of the water. it takes a time of 2.20 s for the boat to travel from its highest point to its lowest, a total distance of 0.670 m . the fisherman sees that the wave crests are spaced a horizontal distance of 5.80 m apart. (a) how much is the wavelength? (b) find the period of the wave. (c) how fast are the waves traveling? (d) what is the amplitude a of each wave?
Answers: 3
Physics, 22.06.2019 21:00
Give me a example of a decomposer. explain what would happen if decomposers were absent from a forest ecosystem
Answers: 1
Physics, 22.06.2019 22:30
Use the drop-down menus to answer each question. which line represents the movement of a cart with a constant acceleration? a which line represents the movement of a cart with a constant velocity? c which lines represents a cart with no velocity or acceleration? b
Answers: 1
You know the right answer?
Questions
Physics, 10.12.2020 06:10
Mathematics, 10.12.2020 06:10
Advanced Placement (AP), 10.12.2020 06:10
Mathematics, 10.12.2020 06:10
Social Studies, 10.12.2020 06:10
Chemistry, 10.12.2020 06:10
Social Studies, 10.12.2020 06:10
Biology, 10.12.2020 06:10
Mathematics, 10.12.2020 06:10
Mathematics, 10.12.2020 06:10
Mathematics, 10.12.2020 06:10
Chemistry, 10.12.2020 06:10
Mathematics, 10.12.2020 06:10
English, 10.12.2020 06:10
