Answer : The correct option is, (4)
Solution :
The relation between the frequency and time period is that the frequency is inversely proportional to the time period.
It is written as,
where,
= frequency of the sound wave = 340 Hz =
T = time period of a sound wave = ?
Now put all the given values in the above expression, we get the time period of the a sound wave.
Therefore, the period of a sound wave is,
Answer:
C. Remains of living things
Explanation:
They are made up of dead animals or plants. Coal, Oil, and Natural Gas are the three types of fossil fuels and all of them come from dead organisms. Even the name Fossil Fuels, sounds like a name for something like this.
Hope this Helps ʕ•ᴥ•ʔ
Answer:
Yes
Explanation:
A body can possess velocity at the same time in horizontal and vertical direction
For example
A projectile
Answer:
False. The net force is Zero
Explanation:
To answer this question we propose the solution of the problem.
We have a toy where balls come in and out after crashes between them, this toy forms our system, so all the balls are parts of the system, when the balls collide with each other according to Newton's third law force and action and reaction, so it has the same magnitude, but opposite direction, this is each is applied to some of the objects.
In conclusion of the previous one for the system the net force is Zero, all are internal. Therefore, the only thing that happens is a redistribution of speeds according to the conservation of the moment.
Let's review the answer.
False. The net force is Zero