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Lemur [1.5K]
3 years ago
15

It is easier to drive In sharp nails in a piece of wood than the blunt ones why?

Physics
1 answer:
murzikaleks [220]3 years ago
5 0

The sharp nail has a less surface area in comparison to a blunt nail and pressure is inversely proportional to area so it is easier to Hamer a sharp  nail into a wood rather than having a blunt nail in wood


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With a diameter that's 11 times larger than Earth's, _______ is the largest planet.
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With a diameter that's 11 times larger than Earth's, Jupiter is the largest planet

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Geologists have evidence that the continents were once a single giant landmass that land mass eventually split apart and the ind
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You are watching a wave with a frequency of 512 Hz go past. How many peaks of the wave go past you each minute?
inna [77]

Answer:

61440 peaks

Explanation:

A hertz represents one cycle for every second:

f= Hz=\frac{1}{s}

So if a wave have frequency of 2Hz for example, this means the wave does two cycles per second.

Normally the waves are represented by cosine or sine waves. These kind of waves have two peaks in each cycle, one positive and one negative. With this in mind, let's calculate how many peaks of the wave pass each minute.

A minute has 60 seconds, hence:

60*512=30720\hspace{3}cycles\hspace{3}per\hspace{3}minute

And we know already that every cycle has two peaks, so:

30720*2=61440\hspace{3}peaks\hspace{3}per\hspace{3}minute

4 0
3 years ago
Read 2 more answers
Pls answer this ,today is last day of classes then I got finals soon lol
KIM [24]

Answer and Explanation:

The law of conversation of energy states that energy cannot be created or destroyed. The pendulum slows down and stops eventually not because the kinetic energy is destroyed, but it is transferred into sound and heat energy instead because there is air resistance and friction.

Kinetic energy => Gravitational potential energy (Loop but some energy transferring to heat and sound each time)

4 0
2 years ago
A student is using a frequency generator set to 440 Hz. Another student has an identical generator playing an unknown frequency.
Anna71 [15]

Answer:

The unknown frequency is either 438 Hz or 442 Hz.

Explanation:

The frequency of a beat heard when two sounds with frequencies f₁ and f₂, are played simultaneously, is simply the difference between two frequencies.

b = |f₁ - f₂|

b = 2 Hz

f₁ = 440 Hz

f₂ = ?

440 - f₂ = 2 or 440 - f₂ = -2

f₂ = 438 Hz or 442 Hz

The unknown frequency is either 438 Hz or 442 Hz.

Hope this Helps!!!

5 0
3 years ago
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