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3 years ago

What is the kinetic energy of a body with a mass of 0.500 kg that moves at a speed of 20.0 m/s?

Chemistry

1 answer:

Norma-Jean [14]3 years ago

6 0

Answer:

100J = K.E

Explanation:

K.E =1/2 *m*v^2

= 1/2*0.500*(20.0)^2

= 1/2 *500/1000 *400

So here 2will cancel with 400,and it will be reduced to 200 then the zeros of 200 will cancel with 1000's zeroes and then when the zeros of 200 get cancelled with the zeroes of 1000 u will be left with 500/10 *2 then cancel 2 with 10 then u get 500/5 then reduce that u get 100.

Hope it helps pls mark as brainliest!!!

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IceJOKER [234]

Answer:

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Explanation:

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3 years ago

25. Which answer best describes the continental rise? area of land that drops toward deep ocean basins 75 mile shallow flat area

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Answer:

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Explanation:

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Answer:

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3 years ago

How much sodium bicarbonate to raise alkalinity in pool.

almond37 [142]

Answer:

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2 years ago

How many liters of 1.75 M solution could be made using 35 grams of NaCl?

dolphi86 [110]

Data:
M (molarity) = 1.75 M (mol/L)
m (mass) = 35 g
MM (molar Mass) of NaCl = 58.44 g/mol
V (volume) = ? (in liters)

Formula:
$M = \frac{m}{MM*V}$

Solving:
$M = \frac{m}{MM*V}$
$1.75 = \frac{35}{58.44*V}$
$1.75*58.44V = 35$
$102.27V = 35$
$V = \frac{35}{102.27}$
$\boxed{\boxed{V \approx 0.34\:L}}\end{array}}\qquad\quad\checkmark$

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3 years ago