The figure shown below illustrates a lever being used to lift a weight W.
The applied force is F.
In order to lift the weight, the minimum applied force is
F*b = W*a
F = (a/b)W
When the ratio a/b < 1, then the applied force is less than the weight.
The principle behind the use of a lever is to keep the ratio a/b small in order to decrease the effort force.
Answer: A
A lever is used to decrease effort force.
Answer:
The energy E is 1603.008 J.
Explanation:
Given that,
Capacitor = 18.4 μF
Voltage = 13.2 kV
We need to calculate the energy
Using formula of energy
.....(I)
We know that,
Put the value of Q in equation (I)
On integration
Put the value into the formula
Hence, The energy E is 1603.008 J.
The units of velocity is :
meter per second (m/s)
Answer:
Dry or unsaturated air
Explanation:
Virga is defined as a type of precipitation that falls from the lower side of a cloud and before it strikes the ground surface, it gets evaporated.
This type of precipitation usually occurs when the rain falls through a region of dry or unsaturated air, which absorbs the water vapour (or moisture content), thereby resulting in a formation of a falling liquid shaft (ice particles).
This type of precipitation generates microbursts that are dangerous for the aircraft and planes. These microbursts help in the elimination of heat from the prevailing air, as a result of which the cold air sinks causing severe turbulence.
Solids are just vibrating and they cannot move past each other
the liquids they move freely and move past each other