Physics, 03.12.2019 09:31 janellesteele7498
Bluetooth is a technology that allows wireless devices to communicate data and information to each other. for example, a wireless pair of headphones can play music from a smart phone without a physical connection. however, the technology must be low energy enough not to cause damage to the people using the device. additionally, the wavelengths used in bluetooth technologies should not be visible. the waves associated with bluetooth technology are most similar to which wave type below?
a) x-rays
b) red light
c) radio waves
d) uv radiation
Answers: 1
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Red light strikes a metal surface and electrons are ejected. if violet light is now used with a 10% greater intensity, what will happen to the ejection rate (number of ejected electrons per second) and the maximum energy of the electrons? a) greater ejection rate; same maximum energyb) same ejection rate; greater maximum energyc) greater ejection rate; greater maximum energyd) same ejection rate; same maximum energye) none of the above answers are correct
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The charge on an electron is 1.60218 × 10−19 c and its mass is 9.10939 × 10−31 kg. how strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.5 cm? answer in units of t.
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Bluetooth is a technology that allows wireless devices to communicate data and information to each o...
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