Answer:
Explanation:
Solar energy production encompasses several power sources, both passive and active. It’s important to differentiate among the different types of solar energy production systems since it’s not uncommon for the average homeowner to confuse them. We’ll start with a diagram of solar energy hitting the earth surface.
Then we’ll present diagrams and discuss photovoltaic solar, solar hot water, and concentrated solar power. The easiest way to think about these is: am I using solar energy to heat water (solar hot water and CSP) or am I converting sunlight directly into electricity (photovoltaic cells)?
Answer:
An attractive force between the magnets. A is the correct answer if it was the north pole facing another north pole magnet the answer would have been a repulsive force between the magnets because the north pole of a magnet does not attract instead it separates from each other which is a repulsive force the best answer is A.
Explanation:
the southern pole of a magnet is a positive force while the northern pole of a magnet is negative .
Note: Magnet can attract each other only when they are facing the opposite directions a north pole will attract a south pole; the magnets pull on each other. But the two north poles will push each other away.
Answer:
The velocity is 
Explanation:
From the question we are told that
The diameter of the pipe is 
The magnetic field is 
The hall voltage is 
Generally the average fluid velocity is mathematically represented as
=> 
=>
Answer:
110 meters is the distance where they will intersect
Explanation:
given,
liquid density = 1900 kg/m³
distance of upper hole = 19 m
distance of lower hole = 117 m
acceleration due to gravity = 9.8 m/s²
the speed at each point
for upper hole 
v = 19.29 m/s
lower hole 
v = 47.88 m/s
The path for each is parabolic
x = v t
we get
upper hole
lower hole
y for upper hole = 80 + y for lower hole
x = 109.32 meters
110 meters is the distance where they will intersect
Answer:
B. IT should have a very broad focus with many variables.
