Almost all methods of generating electricity depend on using
some other form of energy to spin an electrical generator.
If the other form of energy is kinetic energy robbed from wind,
then the wind turns the blades of a big 'fan', and the blades
spin the electrical generator.
In a commercial windmill, the electrical generator is in that 'box'
on top of the pole, right behind the hub of the blades.
The SI unit for mass is the kilogram, the Imperial unit is the slug, and the unit used in the US is the pound.
Answer:
The tension is
Explanation:
From the question we are told that
The total mass is
The radius is
The density of air is
Generally the upward force acting on the balloon is mathematically represented as
=>
=>
Here V is the volume of the spherical helium filled balloon which is mathematically represented as
=>
=>
So
<span>Newton established his three laws of motion to understand the motion of objects in a systematic way [ same thing as all Scientists did for human's curiosity ].
His three laws of motion are as follows:
First Law: - </span><span> An object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
Second Law: - </span><span> The acceleration of an object as produced by a net force is directly proportional to the magnitude of the net force, in the same direction as the net force, and inversely proportional to the mass of the object.
Third Law: - </span><span>For every action, there is an equal and opposite reaction
Hope this helps!</span>
Answer:
W from -ve x-axis
Explanation:
electrostatic force is given by
if both charge have different signs, Force will be attractive, and if both charge have same signs, force will be repulsive .
Now Net force will be
force between q1 and q3 is repulsive and towards -ve x-axis, which is
where q3 = 5.0nC {GIVEN}
force between q2 and q3 is attractive and towards +ve y-axis, which is
Now given that
q_1 = 6 nC, q_2 = -1 nC, q_3 = 5.0 nC
r_13 = 0.30 m
r_23 = 0.10 m
total force will be
F_3 =
magnitude of force can be calculated as
Direction W from -ve x-axis
Direction = 180 - 56.31 = 123.69 anti- Clockwise from +ve x-axis