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sergiy2304 [10]
3 years ago
9

A radio wave travels 186,000 miles per second. How many kilometers will the wave travel in one microsecond? (1 mile = 1.61 km)

Chemistry
1 answer:
Komok [63]3 years ago
6 0
1) 1 second = 1000000 microseconds

2) 186000 / 1.61 = 115527.9503 Km

3) We use the equation:
Speed = distance / time

4) rearrange for distance by multiplying both sides by time to get;

Distance = speed x time


5) plug in the values:

Distance = 115527.9503 x 0.000001
= 0.1155279503 Km
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What kind of exercise does not require the use of oxygen to metabolize energy? strength aerobic stretching anaerobic
MatroZZZ [7]

Answer:

See Below

Explanation:

'an aerobic ' means it does not use oxygen

7 0
2 years ago
For the reaction 2A + 4B ----> 2C + 2D, at a particular instant in time, the rate of the reaction is 0.0352 M/s. What is the
viva [34]

Explanation:

The given chemical equation is:

2A + 4B -> 2C + 2D

The rate of the reaction is 0.0352 M/s.

During the course of the reaction, the rate of reactants decreases, and the rate of products increases.

The rate of disappearance of B is shown below:

rate=-\frac{1}{4} \frac{d[B]}{dt}

So, rate of change of B is :

rate of change of B =- rate * 4\\=-0.0352 M/s * 4\\=-0.1408M/s\\\\=-0.141M/s

Option C.

6 0
3 years ago
2. How much force will this car experience if it collides with a wall and the collision lasts for
Pepsi [2]

The momentum of the body is 12 m/s.

<h3>What is momentum?</h3>

Momentum is the product of the mass of a body and velocity. According to Newton's second law, the rate  of change of momentum is equal to the impressed force.

The details required to answer the first two questions are missing hence we can't answer those questions. For the last question;

p = mv

m = mass

v = velocity

p = momentum

v = p/m

v =  72,000 kgm/s/6,000 kg

v = 12 m/s

Learn more about momentum: brainly.com/question/904448

6 0
2 years ago
Please answer the question and explain
Sindrei [870]

Answer:

x=30

Explanation:

I will try to explain with a drawing.

This is a rule of three.

If you are wondering what the rule of three is. It's when u have 3 informations and you solve.

4 0
3 years ago
A sample of chlorine gas fills a vessel at a temperature of 37oC. The vessel has a volume of 3L and experiences a pressure of 3a
Iteru [2.4K]

Answer:

25.1 g is the mass of chlorine in the sample

Explanation:

P . V = n . R . T

We apply the Ideal Gases Law to solve the excersise.

We need to convert the T°C to T°K → 37°C + 273 = 310K

We replace data: 3 atm . 3L = n . 0.082 L.atm /mol.K . 310K

9 atm.L / (0.082 L.atm /mol.K . 310K) = n → 0.354 moles

We convert the moles to mass, to reach the answer

0.345 mol . 70.9g / 1mol = 25.1 g

7 0
3 years ago
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