The body will take 20 seconds to cover a distance of 1000 m i.e. 1 km
Answer:
c...........................
The label means that the bulb will consume 75 joules of electrical energy in 1 sec
Answer:
64 ohms =R
Explanation:
R is directly proportional to V
R is inversely proportional to I(Current
<h2>Answer: Medium
</h2>
The medium is the main factor that differentiates a mechanical wave from an electromagnetic wave, since the first can not propagate without its existence, while the second can propagate regardless of whether the medium exists or not.
In addition, it is the medium that will define, the propagation speed of the wave, according to its specific physical characteristics.
Therefore, the <u>correct answer</u> is a.
