2 years ago

Please help

1 answer:

4 0

A punta la kk bien echo

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yKpoI14uk [10]

C is the answer hope the answer is right

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2 years ago

givi [52]

Answer: 51.9961 g/mol, don't know if it helps :)

Explanation:

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2 years ago

Dmitry_Shevchenko [17]

So it can break down the egg’s exterior and enter

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1 year ago

andre [41]

Atoms because electrons, neutrons and protons are in a atom

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2 years ago

jeka57 [31]

Answer : The correct answer is 74.83 m/s .

The kinetic energy is energy possessed by any mass which is moving or have some speed . It is product of mass and velocity . It is expressed as :

$KE = \frac{1}{2} * m* v^2$

Where KE = kinetic energy in J or $kg\frac{m^2}{s^2}$ m = mass in Kg v = speed in m/s²

Unit of KE is Joules (J) .

Givne : KE = 2100 J mass = 0.75 kg v = ?

Plugging value in KE formula =>

$2100 J = \frac{1}{2} * 0.75 Kg * v^2$

$2100 J = 0.375 Kg * v^2$

Dividing both side by 0.375 kg =>

$\frac{2100 J}{0.375 Kg} = \frac{0.375 Kg}{0.375 Kg } * v^2$

$v^2 = 5600 \frac{m^2}{s^2}$

$v= 74.83 \frac{m}{s}$

8 0

2 years ago