Answer:
Explanation:
Since Force, F= ma where m is the mass of the body and a is the acceleration of the object. Making acceleration the subject of the formula we obtain that
a=\frac {F}{m}
Substituting 1.8 N for F and 0.43 kg for m then we obtain that
Answer:
1.5454 meters
Explanation:
Hz =
wavelength is measured as
or sometimes just meters with the understanding that it means meters per cycle
340
220
=
= 1.5454
Answer:
Explanation:
Force between two charged conducting sphere
= k x Q₁ x Q₂ / r² , k is a constant Q₁ and Q₂ are charges and r is distance between them .
= 9 x 10⁹ x 12 x 10⁻⁹ x 18 x 10⁻⁹ / .30²
= 21600 x 10⁻⁹
= 2.16 x 10⁻⁵ N .
b )
After the spheres are joined together , there is redistribution of charge and remaining charge will be equally shared by them .
Charge on each sphere = (12 - 18 ) x 10⁻⁹ / 2
= - 3 x 10⁻⁹ C .
Force = 9 x 10⁹ x 3 x 10⁻⁹ x 3 x 10⁻⁹ / .30²
= 900 x 10⁻⁹ N .
This is the answer :)))))