Answer:
Explanation:
To summarize, potential energy is the energy that is stored in an object due to its position relative to some zero position. An object possesses gravitational potential energy if it is positioned at a height above (or below) the zero height.
Answer: a particle smaller than an atom
Explanation:
This device is a transformer.
A transformer is made of two coils. An alternating current in the first coil produces a varying magnetic field and so a varying magnetic flux through the second coil. The varying magnetic flux creates an electromotive force in the second coil, for the Faraday's law of induction, that is proportional to the variation of the flux, and this electromotive force corresponds to the new voltage on the second coil.
The relationship between the voltage in the first coil (Vp) and the voltage in the second coil (Vs) is given by
where Np and Ns are the number of turns in the primary and secondary coil, respectively.
A. CORRECT.
A very thin rotor decreases the effectiveness in the braking system. It cannot withstand heat and can cause quick wearing and fading of brake parts.
B. INCORRECT
Air in the hydraulic system can only make brake pedal soft and spongy. Pulsation in brake pedals is as a result of worn out or unevenly brake pads.