This seems like a question from an electrical course, and is probably best answered by your course materials. It's your test question, not ours, and there won't always be someone to ask the answer of. Earn your diploma.
10 Hz 10 Hz
There is no inherent disadvantage of 50 Hz compared with 60 Hz, bearing in mind that systems that run at 50 Hz are designed to run at 50 Hz.
60 Hz in North America, 50 Hz in Europe.
Answer 1000 RPM or 16.667 HZ, 50 Hz * 60 = 3000 RPM 3000 / 3 = 1000 RPM, or 50 HZ / 20 (1/3 of 50 Hz) * 60 seconds. Or Hz * 20 ( converts to RPM) For 4 pole then, Hz * 30 = RPM For 8 pole, Hz * 15 = RPM
the maximum rating is 60 hz . it is work in50hz
An X-ray has a frequency in the range 30 petahertz to 30 exahertz, that is 30×1015 Hz to 30×1018 Hz.
If the change in energy of electron is totally exhibited as a photon then the energy = h times frequency. h = 6.626 x 10 to -34 J s Simply multiply h and frequency you would get the energy in joule
4x 1015 Hz The electron lost 2.6 x 10-18 J of energy.
6.6´1015 Hz, ultraviolet
A photon with energy 3.0 x 10-19 J A photon with wavelength 525 nm A photon with frequency 7.6 x 1014 Hz A photon with frequency 2 x 1015 Hz
Use this formula. Hydrogen's Z number is 1. Frequency = (3.29 X 1015 Hz) * Z2 * (1/Nf2 - 1/Ni2) Frequency = (3.29 X 1015 Hz) * 12 * (1/52 - 1/12) = - 3.16 X 1015 Hertz ------------------------------can discard negative sign as this is usually used to find drops in orbital level
6.4x10^14 [Hz]
The term Hz stands for Hertz which means cycles per second; the normal alternating current is 60 Hz, it alternates 60 times per second.
1.5k hz is a frequency measured in Hertz (hz). 1.5k means the wave cycle is completed 1,500 times per second (not terribly high). The average teenager can hear from 20 hz to 13k-14k hz if that gives you any perspective.
Wavelength = (speed)/(frequency) = 299,792,458/4 x 1015 = 7.4948 x 10-8 meter = 74.95 nm (rounded)
The 'k' in kHz probably stands for kilo, meaning a thousand times Hz, like kilogram and gram.
Kilo means times 1000, mega means times 1,000,000. So 0.005 megahertz = 5000 Hz = 5 kiloHz. Hertz (not Herz) is abbreviated to Hz