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3 years ago

Poverty and backwardness are also considered as the cause of rapid population growth. Why????

1 answer:

6 0

because poor and people of back places may not have enough knowledge about contraceptive devices and may not have enough money to buy it.That's why poverty and backwardness are considered to be a cause of population growth

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What do u do if ur baby sitting and the kid falls down the stairs and breaks his nose. Should I tell the parents or no? What do

igor_vitrenko [27]

Answer:

Call the parent's for the safety of the baby

Explanation:

5 0

4 years ago

Read 2 more answers

If a guitar string has a fundamental frequency of 500 hz, which one of the following frequencies can set the string into resonan

Sav [38]

I had to look for the options and here is my answer:

Given that a guitar string has a basic frequency of 500hz, the frequency that can be set for this into resonant vibration would be 1500 Hz. The resonant vibration here is necessary in musical instruments because it delivers a vibrating system which leads to a higher amplitude at a particular frequency.

3 0

3 years ago

which is warmer -30 degrees Celcius or -30 degrees Fahrenheit? And how would i show my work for this question?

Alenkasestr [34]

Convert the temperature scales:

-> TC (Celsius Temperature)
-> TF (Fahrenheit Temperature)

->TC/5 = TF - 32/9

-30/5 = TF - 32/9

-270 = 5TF - 160

5TF = -270 + 160

5TF = -110

TF = -110/5

TF = -22 Fahrenheit

- 30 °C = -22 °F

So, -30°C is warmer than -30°F.

-30°F is lower than (30°C) -22°F.

4 0

3 years ago

A lamp has a current of 2.17 A. In hours, how long does it take for 1 mole of electrons to pass through the lamp?

Gennadij [26K]

<u>Answer:</u> The amount of time needed for 1 mole of electrons to pass through the lamp is 12.33 hrs.

<u>Explanation:</u>

We are given:

Moles of electron = 1 mole

According to mole concept:

1 mole of an atom contains $6.022\times 10^{23}$ number of particles.

We know that:

Charge on 1 electron = $1.6\times 10^{-19}C$

Charge on 1 mole of electrons = $1.6\times 10^{-19}\times 6.022\times 10^{23}=9.6352\times 10^4C$

To calculate the time required, we use the equation:

$I=\frac{q}{t}$

where,

I = current passed = 2.17 A

q = total charge = $9.6352\times 10^4C$

t = time required = ?

Putting values in above equation, we get:

$2.17A=\frac{9.6352\times 10^4C}{t}\\\\t=\frac{9.6352\times 10^4C}{2.17A}=44402s$

Converting this into hours, we use the conversion factor:

1 hr = 3600 seconds

So, $44402s\times \frac{1hr}{3600s}=12.33hr$

Hence, the amount of time needed for 1 mole of electrons to pass through the lamp is 12.33 hrs.

3 0

3 years ago

Assuming the input of energy continues for another 2.5 seconds, where will the particle be?

VladimirAG [237]

Well i had the same question on my test, and when the graph in 2.5 seconds goes up from the equilibrium it reaches a positive maximum, so that would be your answer.

b. positive maximum

3 0

3 years ago