Answer:
if the frequency of the wave if tripled then period of wave gets tripled
When the winch is pulling it up it's first hill, it is losing it's energy to give it to the coaster. It starts gaining energy because its height. Then when it goes down the hill, gravity kicks in and the potential energy turns into kinetic energy.
The plastic jars of the air capacitor represent the parallel conducting plates.
<h3>What is Air capacitor?</h3>
Air capacitor is a type of capacitor that uses air as its dielectric. The simplest air capacitors will contain two conductive plates separated by an air gap.
This capacitor stores and releases electricity in the circuit using;
- air as the electrical source,
- balloon as the insulator and
- the plastic jar as the parallel conducting plates.
Thus, the plastic jars of the air capacitor represent the parallel conducting plates.
Learn more about air capacitor here: brainly.com/question/15755974
Answer:
Explanation:
Far point = 17 cm . That means he can not see beyond this distance .
He wants to see at an object at 65 cm away . That means object placed at 65 has image at 17 cm by concave lens . Using lens formula
1 / v - 1 / u = 1 / f
1 / - 17 - 1 / - 65 = 1 / f
= 1 / 65 - 1 / 17
= - .0434 = 1 / f
power = - 100 / f
= - 100 x .0434
= - 4.34 D .
