Answer:
The magnitude of charge is
with a positive charge.
Explanation:
Given that,
The potential due to a point charge, 
Distance, d = 15.7 m
The potential due to a point charge is given by :

q is charge
k is electrostatic constant
Here, the potential is positive, then the magnitude of charge is
with a positive charge.
The major winds for the cities that are located at latitudes of 35 degrees north are prevailing winds and westerlies. Prevailing winds are winds that blow in a single direction. Westerlies are prevailing winds that blow towards the west side of the Earth.
Answer:

Explanation:
Given:
- Initial temperature of water,

- final temperature of water,

- energy spent in one hour of walk,

- volumetric capacity of stomach,

<em>Now, let </em><em>m </em><em>be the mass of water at zero degree Celsius to be drank to spend 450 kilo-calories of energy.</em>
We know:
.....................................(1)
where:
m = mass of water
Q = heat energy
temperature difference
= specific heat capacity of water
<u>Putting values in the eq. (1):</u>


Since water has a density of 1 kilogram per liter, therefore the volume of water will be:

A. because everything is balanced.
Density=mass÷volume
density=40.5÷15=2.7