Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.00 W/m2.2.00 W/m2. If a radar unit leaks 10.0 W10.0 W of microwaves (other than those sent by its antenna) uniformly in all directions, how far away, rmin, rmin, must you be to be exposed to an average intensity considered to be safe? Assume that the power spreads uniformly over the area of a sphere with no complications from absorption or reflection.
Answers: 3
Physics, 21.06.2019 19:30
A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?
Answers: 1
Physics, 21.06.2019 22:30
Abug is 12 cm from the center of a turntable that is rotating with a frequency of 45 rev/min . what minimum coefficient friction is required so that the bug stays on the turntable?
Answers: 1
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
Answers: 3
Suppose the maximum safe average intensity of microwaves for human exposure is taken to be 2.00 W/m2...
English, 12.03.2020 06:58
Chemistry, 12.03.2020 06:58
Mathematics, 12.03.2020 06:58
History, 12.03.2020 06:58
History, 12.03.2020 06:58
History, 12.03.2020 06:58
Mathematics, 12.03.2020 06:58