Distance/ time = 100/5 = 20 km per hour
The average speed at 5hrs is 20 km per hour.
For a radio station broadcasts at a frequency of 83.8 MHz with a power of 16.5 kW, the number of photons is mathematically given as
P=6.92*10^{29}photon/sec
<h3>What is the number of photons does the antenna of the station emit in each second?</h3>
Generally, the equation for the energy is mathematically given as
E=hf
Therefore
E=6.63*10^{34}*83*10^6
E=5.561*10^26J
In conclusion, the number of photons
P=dN/dt
P=38500/5.561*10^{26}
P=6.92*10^{29}photon/sec
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We have to speed up the watch so we need to decrease time period of pendulum. So we hv to reduce the length.
Physiology is the study of all living creatures
Answer:
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