Answers: 1
Physics, 20.06.2019 18:02, kamya47
1. most waves are caused by vibrations. what motion in a transmitting antenna causes the vibrations that produce radio waves? 2. name two common household appliances that produce electromagnetic waves other than radio waves. what kind of electromagnetic waves do they produce? 3. when you are in a car and it passes through a tunnel, the radio signal is sometimes lost. why do you think this happens?
Answers: 1
Physics, 21.06.2019 19:10, shazanah95
Athin, square metal plate measures 14 cm on each side and has emissivity of 0.60. the plate is heated to a temperature of 745°c. what is the rate at which the plate radiates energy ? the stefan-boltzmann constant is 5.67 × 10-8 w/(m2 ? k4). remember that the plate will radiate energy from both its top and bottom surfaces.
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Physics, 22.06.2019 05:30, GreenHerbz206
Could someone . i have tried to solve myself but my calculation is off
Answers: 3
Physics, 22.06.2019 14:00, smkw04p3ao0n
If element x has 99 protons how many electrons does it have
Answers: 1
Explain why there is total internal reflection in an optical fibres...
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