3 years ago

When sound is created it travels to the ear through a

Physics

2 answers:

kaheart [24]3 years ago

6 0

Sound travels through the ear via compression

Slav-nsk [51]3 years ago

5 0

Answer:

medium

Explanation:

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A 243 mL cup of whole milk contains about 45 mg of cholesterol. Express the cholesterol concentration of the milk in kilograms p

timama [110]

Answer: $0.1851 \frac{kg}{m^{3}}$

Explanation:

We have this concentration in units of $mg/ml$ :

$\frac{45 mg}{243 ml}$

And we need to express it in $kg/m^{3}$ , knowing:

$1 ml= 1 cm^{3}$

$1 m^{3}= (100 cm) ^{3}$

$1g = 1000 mg$

$1 kg = 1000 g$

Hence:

$\frac{45 mg}{243 cm^{3}} \frac{1 g}{1000 mg} \frac{1 kg}{1000 g} \frac{(100 cm) ^{3}}{1 m^{3}}=0.1851 \frac{kg}{m^{3}}$

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4 years ago

When a phase change of a substance occurs what happens to the temperature of the substance?

Maurinko [17]

<span>C) It does not change. At the point where the phase of a substance changes, there is no temperature change but only the phase change. After this, the temperature then goes up or down depending on the type of phase change occurring. </span>

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3 years ago

Two resistors, A and B, are connected in a series circuit with a battery. The resistance of A is twice that of B. Which resistor

IgorC [24]

Answer:

A dissipates more power.

Explanation:

In a series circuit, the current is the same at any point in it.
The power dissipated in any resistor follows Joule's law, as follows:

$P = I^{2} * R$

So, for a given current, the power is directly proportional to the resistance of the resistor.
In this case, as resistor A has twice the resistance of resistor B, A dissipates twice more power than B.

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4 years ago

What is the other main factor used to determine climate

Scorpion4ik [409]

Temperature & amount

Hope I helped! ( Smiles )

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4 years ago

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Track and field is an individual sport question 4 options: true false

Oxana [17]

Answer:

Yes