3 years ago

Jacob eats a snack, and then plays basketball with his friends. When he shoots the basketball at the hoop, he is changing _____.

Chemistry

1 answer:

olchik [2.2K]3 years ago

3 0

A because it requires energy from food to move which is mechanical

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3 years ago

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What is the mass of an object with a density of 3.4 g/mL and a volume of 500.0 mL

umka2103 [35]

Formula:
$mass=density *volume$

Given:
Density=3.4
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Plug them into the formula:
$mass=3.4 *500.0=1700$

Final answer: 1700g

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3 years ago

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3 years ago

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Rasek [7]

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3 years ago

A virus has a mass of ×9.010−12mg and an oil tanker has a mass of ×3.0107kg . Use this information to answer the questions below

puteri [66]

Answer: Mass of one mole of viruses in grams is $54\times 10^{8}$

Explanation:

According to avogadro's law, 1 mole of every substance weighs equal to molecular mass and contains avogadro's number $6.023\times 10^{23}$ of particles.

Given : One virus has mass of = $9.0\times 10^{-12}mg=9.0\times 10^{-15}g$ $1mg=10^{-3}g$

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3 years ago