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Which of the following forms of electromagnetic waves is used mostly in communication?
a)x-rays
b)infrared
c)radio waves
d)gamma rays
Answers: 1
Physics, 21.06.2019 18:30
Which of these describe conduction transfer of heat between two objects that are touching transfer of heat by the actual movement of war matter the process in which energy is imitated by one of the object transmitted through space and absorbed by another a process in which energy is released by the molecules breaking apart
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Physics, 22.06.2019 11:00
A2.00-m long piano wire with a mass per unit length of 12.0 g/m is under a tension of 8.00 kn. what is the frequency of the fundamental mode of vibration of this wire?
Answers: 3
Physics, 22.06.2019 12:30
Aboy with a mass 25 kg climbs into a small tree. he sits on a branch that is 2.o m above to the ground.what is his gravitational potential energy above the ground?
Answers: 1
Physics, 22.06.2019 12:50
The heliocentric and the geocentric models of the solar system included these central principles
Answers: 1
Which of the following forms of electromagnetic waves is used mostly in communication?
a)x-ray...
a)x-ray...
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