Answer:
21
Explanation:
21 is x because 211211 1 1 1 1 1aghh
Answer:
-6N
Explanation:
The force to the east is acting in the positive x-direction therefore it is positive. The force to the east is in the negative x-direction therefore it is negative. The net force is just the sum of the two so 3-9=-6
When the glasses or contact lenses are used to correct
nearsightedness, the corrective lens forms the image of the object that is
located at the infinity in order, in order for the eye to form a clear image of
the object, the lens will be able to form the image at far point.
<h2>
Answer: None of the above choices are correct.</h2>
Explanation:
Here we are talking about the vibration frequency of an object:
(1)
The frequency 
is defined as the inverse of the period 
(time):
(2)
Therefore the Period is:
(3)
Now, if we want to find the period we have to substitute equation (1) in equation (3):
<u>Finally:</u>
>>>>This is the value of the <u>period</u>, which does not match with any of the options given.
Hence:
None of the above choices are correct.
