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3 years ago

If you move 50 meters in 10 seconds, what is your speed

Physics

1 answer:

iogann1982 [59]3 years ago

8 0

Explanation:

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A 5kg baby is asleep in a 5kg stroller. The mom is speed walking in the park at 3m/s. How much momentum does she generate with t

lesya [120]

Answer:

The correct solution is "15 kgm/s". A further explanation is given below.

Explanation:

The given values are:

Mass,

m = 5 kg

Velocity,

v = 3 m/s

By applying the formula of momentum, we get

⇒ $P=m v$

On substituting the given values, we get

⇒ $=5\times 3$

⇒ $=15 \ kgm/s$

6 0

3 years ago

A 40.0-μFcapacitor is connected across a 60.0 Hz generator. An inductor is then connected in parallel with the capacitor. What i

amm1812

Answer:

The value of the inductance is 175.9 mH.

Explanation:

Given that,

Capacitor $C= 40.0\ \muF$

Frequency = 60.0 Hz

The inductor and capacitor is connected in parallel, the voltage across each of these elements is the same.

We have,

$V_{L}=V_{C}$

Using ohm's law

$I_{rms}\times X_{L}=I_{rms}\times X_{C}$

$X_{L}=X_{C}$

$2\pi f L=\dfrac{1}{2\pi f C}$

$L=\dfrac{1}{4\pi^2\times f^2\times C}$

Put the value into the formula

$L=\dfrac{1}{4\times\pi^2\times60.0^2\times40\times10^{-6}}$

$L=0.1759\ H$

$L=175.9\times10^{-3}\ H$

$L=175.9\ mH$

Hence, The value of the inductance is 175.9 mH.

5 0

4 years ago

How many protons are in one kg of lead? b) How many electrons are in one kg of lead? c) What is the total negative charge of the

mina [271]

Answer:

Number of protons = $2.3836\times 10^{26}$

Number of electrons = $2.3836\times 10^{26}$

Charge on these electrons = - $3.8185\times 10^{7}\ C$

Explanation:

1 atom of lead contains 82 protons and 82 electrons

1 mole = $6.023\times 10^{23}$ atoms

Thus,

1 mole of lead contains $82\times 6.023\times 10^{23}$ protons

Also, 1 mole of lead weighs 207.2 g

So,

207.2 g of lead contains $82\times 6.023\times 10^{23}$ protons

1 kg = 1000 g

So,

1000 g or 1 kg of lead contains $\frac {82\times 6.023\times 10^{23}}{207.2}\times 1000$ protons

Number of protons = $2.3836\times 10^{26}$

Also, for neutral atom, number of protons = number of electrons.

Thus,

Number of electrons = $2.3836\times 10^{26}$

Also,

Charge of 1 electron = - $1.602\times 10^{-19}\ C$

Charge on these electrons = - $2.3836\times 10^{26}\times 1.602\times 10^{-19}\ C$

Charge on these electrons = - $3.8185\times 10^{7}\ C$

3 0

3 years ago

An object can be moving from 10 seconds and still have zero displacement true or false

Tasya [4]

It is True :) :( :) :(

8 0

3 years ago

Please help on this one?

Roman55 [17]

it is A.

Because B. Is just way off

C. Is just straight

And D. Is just....yea

5 0

3 years ago

If you move 50 meters in 10 seconds, what is your speed ​

If you move 50 meters in 10 seconds, what is your speed