Physics, 04.07.2019 23:10 tennispro154
(a) the intensity of sound coming from a speaker 2 m away is 80 db. how far away must you stand for the intensity to be reduced to 40 db? (b) the earth has a radius of r = 6.4 106 m. it orbits the sun in a nearly circular orbit at an average distance of 1.5 101m. the solar intensity at the upper atmosphere is 1367 w/m2. how much energy does the sun radiate per second?
Answers: 2
Physics, 22.06.2019 05:20
A3.9 g aluminum foil ball with a charge of +4.1×10−9 c is suspended on a string in a uniform horizontal e⃗ field. the string deviates to the right and makes an angle of 30∘ with the vertical. part a part complete what information about the e⃗ field can you determine for this situation? what information about the field can you determine for this situation? only the magnitude of e⃗ only the direction of e⃗ both the magnitude and the direction of e⃗ none of the above previous answers correct part b determine the magnitude of the electric field. express your answer with the appropriate units. e e = nothing nothing request answer part c determine the direction of the electric field. determine the direction of the electric field. to the right to the left away from you toward you
Answers: 3
Physics, 22.06.2019 08:30
An automobile steering wheel is shown. what is the ideal mechanical advantage? if the ama is 8, what is the efficiency of the steering wheel?
Answers: 1
Physics, 23.06.2019 04:50
How does the motion of an airplane compare to the motion of a rocket ?
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Physics, 23.06.2019 08:40
Question 1 of 10multiple choice: select the best answer and click "submit."what method of forecasting predicts the arrival time of a storm based on itscurrent speed and other starting variableso a. climatology methodo b. trends methodo c. analog methodod. persistence method
Answers: 2
(a) the intensity of sound coming from a speaker 2 m away is 80 db. how far away must you stand for...
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