B) power.
C) form of energy.
D) form of electricity.
Answer: The correct answer is "force".
Explanation:
Magnet has two poles: South pole and North pole.
Magnetic field lines are the surrounding around the magnet in which magnetic force can be experienced.
Like poles repel each other. There is force of repulsion between like poles. Unlike poles attract each other. There is force of attraction between the opposite poles.
Magnetism is a force. It is not a power. The power is the rate of doing work.
Magnetism is not a form energy.
Therefore, the correct option is (A).
212*f....... as that kid tried to explain the combustion process, and failed... the process isn't exactly the same for all heat engines... therefore, there has to be a universal heat that of in which has a standard heat of 212 degrees fahrenheit
the mechanical advantage of a wheel and axle can be calculated.
the mechanical advantage of a pulley can be calculated.
the mechanical advantage of a wedge can be calculated.
Answer:
The mechanical advantage of a lever can be calculated.
Explanation:
If the length of the effort arm and the length of the resistance arm are given we can calculated the mechanical advantage of a lever. It is also defined as the ratio of output force to the input force. Mathematically, it is given by :
Where
is the output force
is the input force
A lever is a simple machine in which there is a Plank that is free to free to rotate around a pivot. So, the correct option is (a) "the mechanical advantage of a lever can be calculated".
Answer:
Explanation:
Given the expression , we are to find the value of Δt from the expression. To find Δt, we will make Δt the subject of the formula from the given expression as shown;
Hence the equivalent expression for.