The kilogram is the Standard International System of Units unit of mass. It is defined as the mass of a particular international prototype made of platinum-iridium and kept at the International Bureau of Weights and Measures.
Answer:
X=92.49 m
Explanation:
Given that
u= 21 m/s
h= 97 m
Time taken to cover vertical distance h
h= 1/2 g t²
By putting the values
97 = 1/2 x 10 x t² ( g = 10 m/s²)
t= 4.4 s
The horizontal distance
X= u .t
X= 21 x 4.4
X=92.49 m
Answer: This is not easy lol
Explanation:
Small tracks of water are left on the ice as kinetic energy is transformed into thermal energy
Answer:
1.72 x 10³ N.
Explanation:
When a charge is split equally and placed at a certain distance , maximum electrostatic force is possible.
So the charges will be each equal to
31/2 = 15.5 x 10⁻⁶ C
F = K Q q / r²
= ![\frac{9\times10^9\times(10.5)^2\times10^{-12}}{(24\times10^{-3})^2}](https://tex.z-dn.net/?f=%5Cfrac%7B9%5Ctimes10%5E9%5Ctimes%2810.5%29%5E2%5Ctimes10%5E%7B-12%7D%7D%7B%2824%5Ctimes10%5E%7B-3%7D%29%5E2%7D)
= 1.72 x 10³ N.