Explanation:
The fluctuating sound heard when two objects vibrate with different frequencies is called beats. It is given that guitar string produces 3 beats/s when sounded with a 352 Hz tuning fork and 8 beats/s when sounded with a 357 Hz tuning fork.
It is assumed to find the vibrational frequency of the string.
For 3 beats/s, beat frequency can be :
352 - 3 or 352 + 3 = 349 Hz or 355 Hz
For 8 beats/s, beat frequency can be :
357 - 8 or 357 + 8 = 349 Hz or 365 Hz
It means that the vibrational frequency is 349 Hz.
Answer:
Well I think that 16 year olds should get a job because this could benefit them. They can learn to save and manage there own money. And I think that 16 yrs olds should get a job because this can help them in positive way.
Explanation:
Hope this made sense and help!!!
Well let's analyse.
First we know Ohm's law of resistance that states:
Where R is resistance, U is voltage and I is current.
If we express current we get:
Because resistance cannot be equal to 0 (violation of mathematical law) the only thing that may cause current being zero is voltage.
Which means that as long as your voltage is bigger than 0V then there will be current (if we are talking about AC).
So to answer the question: Electric current is caused by voltage and regulated by resistance.
Hope this helps.
r3t40
I think the anser is B ::::::::::::;:;;;;;;;;;;;;;;;;;;;;;;;;;
Explanation:
10km/h = 10×10/36=25/9m/sec
160km/h= 160×10/36=400/9
v=a×t
t=v/a
t=(400/9-25/9)/5
t=(125/3)/5=25/3=
