The change in velocity is v – u, which is 30 – 10 = 20 m/s.
The acceleration is the change in velocity ÷ time, which is 20 m/s ÷ 4 s = 5 m/s2.
Answer:
Explanation:
Possible causes for overcurrent include short circuits, excessive load, incorrect design, an arc fault, or a ground fault. Fuses, circuit breakers, and current limiters are commonly used overcurrent protection (OCP) mechanisms to control the risks
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The correct answer would be false. The less internal heat a jovian planet emits the lesser it stirs up its clouds making the atmosphere hotter. All of the four Jovian planets have unique atmospheres. They have more or less the same structures but they differ in their average temperature. As the distance of the planet is closer to the sun the atmosphere would be cooler. These planets are Jupiter, Saturn, Uranus and Neptune. They do not have a solid structure instead they are primarily composed of helium and hydrogen which makes them gas giants or ice planets. They are larger in size than the remaining planets in the solar system.
Explanation:
The capacitance in two parallel-plate capacitors is:
For air, we have 
For plastic, we have 
Hence:
a) Recall that the potential difference between the plates is the same (
). The electric field is given by:
The potential difference is defined as:
Replacing:
b) The energy is defined as:
So:
