subject
Physics, 06.08.2019 20:10 musicaljay8320

Model the electromagnetic wave in a microwave oven as a plane traveling wave moving to the left, with an intensity of 27.5 kw/m2. an oven contains two cubical containers of small mass, each full of water. one has an edge length of 5.46 cm, and the other, 11.9 cm. energy falls perpendicularly on one face of each container. the water in the smaller container absorbs 70.0% of the energy that falls on it. the water in the larger container absorbs 91.0%. that is, the fraction 0.300 of the incoming microwave energy passes through a 5.46-cm thickness of water, and the fraction (0.300)(0.300) = 0.090 passes through a 11.9-cm thickness. assume a negligible amount of energy leaves either container by heat. find the temperature change of the water in each container over a time interval of 524 s.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 19:10
Global warming will produce rising sea levels partly due to melting ice caps but also due to the expansion of water as average ocean temperatures rise. to get some idea of the size of this effect, calculate the change in length (in m) of a column of water 1.45 km high for a temperature increase of 1.12°c. assume the column is not free to expand sideways. as a model of the ocean, that is a reasonable approximation, as only parts of the ocean very close to
Answers: 3
question
Physics, 22.06.2019 20:10
Consider two less-than-desirable options. in the first you are driving 30 mph and crash head-on into an identical car also going 30 mph. in the second option you are driving 30 mph and crash head-on into a stationary brick wall. in neither case does your car bounce off the thing it hits, and the collision time is the same in both cases. which of these two situations would result in the greatest impact force?
Answers: 1
question
Physics, 23.06.2019 01:10
The path of a satellite orbiting the earth causes it to pass directly over two tracking stations a and b, which are 51 miles apart. when the satellite is on one side of the two stations, the angles of elevation at a and b are measured to be 87 degrees and 84 degrees, respectively. (a) how far is the satellite from station a? (b) how high is the satellite above the ground?
Answers: 3
question
Physics, 23.06.2019 02:30
What are two examples of phase changes that skip a phase during transition?
Answers: 1
You know the right answer?
Model the electromagnetic wave in a microwave oven as a plane traveling wave moving to the left, wit...
Questions
question
History, 21.10.2020 17:01
Questions on the website: 13722367