The formula for the period of wave is: wave period is equals to 1 over the frequency.

To get the value of period of wave you need to divide 1 by 200 Hz. However, beforehand, you have to convert 200 Hz to cycles per second. So that would be, 200 cyles per second or 200/s.
By then, you can start the computation by dividing 1 by 200/s. Since 200/s is in fractional form, you have to find its reciprocal form and multiply it to one which would give you 1 (one) second over 200. This would then lead us to the value
0.005 seconds as the wave period.
wave period= 1/200 Hz
Convert Hz to cycles per second first
200 Hz x 1/s= 200/second
Make 200/second as your divisor, so:
wave period= 1/ 200/s
get the reciprocal form of 200/s which is s/200
then you can start the actual computation:
wave period= 1 x s divided by 200
this would give us an answer of
0.005 s.
Answer:103 pounds
Explanation:
Given
width of window 
height of window 
standard atmospheric pressure 
Also 
Thus Net Force on the window will be the algebraic sum of Force due to outside and inside Pressure .



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Explanation:
Answer:

Explanation:
The <em>3N force </em>must be attributed to electrostatic attraction between both charges.
The formula is known as Coulomb's law:

Where:
is the elecrostatic force: 3 N- k is the constant for Coulomb's law ≈ 9.00 × 10⁹ N . m² / C²
- d is the distance that separate the centers of the charges
are the values of the charges: ≈ ± 1.6 × 10⁻¹⁹ C
When you are not interested in the direction of the electrostatic force you just use the magnitudes of the charges.
Substitute in the formula and solve for d:


That can be converted to angstroms with the conversion factor:
