Based on the data in the table, what will happen when a sound wave travels

Physics

2 answers:

scoundrel [369]3 years ago

7 0

Answer:

D . The wave will speed up

Explanation:

notka56 [123]3 years ago

4 0

Answer:c

Explanation:

Did the quiz

You might be interested in

Sprinting near the end of a race, a runner with a mass 63 kg accelerates from a speed of 25 m/s to a speed of 26 m/s in 54 s. To

gavmur [86]

Answer:

1.1655 N

Explanation:

Given that,

Initial speed, u = 25 m/s

Final speed, v = 26 m/s

Time taken, t = 54 s

So, Applying equation of motion as:

$v=u+at\\\Rightarrow a=\frac{v-u}{t}\\\Rightarrow a=\frac{26-25}{54}\ m/s^2\\\Rightarrow a=0.0185\ m/s^2$

According to the Newton's second law of motion:-

$Force=Mass\times Acceleration$

Mass = 63 kg

So,

$Force=63\times 0.0185\ kgm/s^2$

Force = 1.1655 N

5 0

4 years ago

What happens when polar molecules are between oppositely charged metal plates

KatRina [158]

Answer:

They will become aligned according to the charges on the metal plate.

Explanation:

When Polar molecules are placed between oppositely charged metal plates the molecules will tend to be attracted by their corresponding oppositely charged plates that is the positive and negative plates,

A polar molecule is one which has opposite charges on its ends. Non-polar molecules however do not have charges on their end

7 0

3 years ago

Calculate the amount of heat (in kj) required to convert 74.6 g of water to steam at 100°c

Kryger [21]

You just need the energy of turning of water in to steam. Water is a little funny because once water gets to 100 degrees C, it stops changing in temperature whilst it all turns to steam. The amount of energy required to turn 1 gram of water into steam is 2257 Joules. We call this the latent heat of vaporisation. So to turn 74.6 grams of water to steam, you would need:

2257J/gram x 74.6g = 168,372.2 J = 168.4 kJ

(latent heat of vaporisation: 2257 J/gram)

7 0

3 years ago

An electric hoist does 56,447 J of work in raising 115 kg load. How high (in meters) was the load lifted?

Ugo [173]

$\\ \rm\rightarrowtail W=mgh$