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3 years ago

As the temperature of a medium increases, the speed of the sound wave ....

Physics

1 answer:

alina1380 [7]3 years ago

3 0

Answer:

Increases

Explanation:

Due to an increase in temperature, molecules within the medium will vibrate more vigorously, meaning that the rate of chemical reactions generally increases with temperature due to an increase in kinetic energy. Because sound is a form of kinetic energy, it is safe to assume that the speed of sound waves increases with temperature.

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A labor push a crate through 12m and 720 J of work .The magnitude of force was

Harrizon [31]

Answer:

Explanation:

The magnitude of the force can be found by using the formula

$f = \frac{w}{d} \\$

w is the workdone

d is the distance

From the question we have

$f = \frac{720}{12} = 60 \\$

We have the final answer as

Hope this helps you

6 0

3 years ago

A gas bottle contains 0.650 mol of gas at 730 mm Hg pressure. If the final pressure is 1.15 atm, how many moles of gas were adde

AlekseyPX

Answer:

0.779 mol

Explanation:

Since the gas is in a bottle, the volume of the gas is constant. Assuming the temperature remains constant as well, then the gas pressure is proportional to the number of moles:

$p \propto n$

so we can write

$\frac{p_1}{n_1}=\frac{p_2}{n_2}$

where

p1 = 730 mm Hg = 0.96 atm is the initial pressure

n1 = 0.650 mol is the initial number of moles

p2 = 1.15 atm is the final pressure

n2 is the final number of moles

Solving for n2,

$n_2 = n_1 \frac{p_2}{p_1}=(0.650 mol)\frac{1.15 atm}{0.96 atm}=0.779 mol$

6 0

3 years ago

Read 2 more answers

Calculate the potential at the center of curvature of the arc if the potential is assumed to be zero at infinity.

yan [13]

the potential at the center of curvature of the arc = v = Q ∕ (4πε∘a) or $\frac{kQ}{a}$

ATQ,

We have density of charge,

λ = $\frac{Q}{L}$

Where L is the rod's length, in this case the semicircle's length L = πr

Q is the charge on the rod

The potential created at the center by an differential element of charge is:

$k = \frac{dQ}{r}$

where k is the coulomb's constant

r is the distance from dQ to center of the circle

v = ∫ $\frac{K dQ}{a}$ , Where a = radius, k = 1 / 4πε∘

v = $\frac{kQ}{a}$ or Q ∕ (4πε∘a)

To learn more about potential from the given link

brainly.com/question/25923373

#SPJ4

6 0

2 years ago

The speed of light in vinegar is 2.30 x 10^8 m/s. Determine the index of refraction. (2

pantera1 [17]

Answer:

$n _{v} = \frac{c}{v} \\ = \frac{3 \times {10}^{8} }{2.30 \times {10}^{8} } \\ = 1.30$

6 0

3 years ago

Some metals have a molecular structure that makes them good conductors. Explain how understanding this relationship can help eng

erastova [34]

Answer:

Explained below.

Explanation:

Conductors can be defined as materials that permit electricity to flow through them easily.

Now, metals have a molecular structure that makes them good conductors because electrons in the atoms of these conductors tend to move freely from one atom to the other. So a majority of metals make good conductors because these metals tend to hold their electrons loosely. In short, it can help engineers make powerful batteries because then it means that they are capable of giving much more electrical energy since nowadays, advanced batteries make use of ion charges for the batteries.

7 0

3 years ago