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pishuonlain [190]
2 years ago
5

Why is Newton's first law of motion is sometimes called the law of inertia

Chemistry
1 answer:
zimovet [89]2 years ago
6 0

Answer:

The reason why Newtons first law of motion is sometimes called the law of inertia is because it states that if the object is in motion, it will not rest unless an unbalanced force acts on the object.

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A piece of iron metal is heated to 155 degrees C and placed into a calorimeter that contains 50.0 mL of water at 18.7 degrees C.
Korvikt [17]

Answer:

D = 28.2g

Explanation:

Initial temperature of metal (T1) = 155°C

Initial Temperature of calorimeter (T2) = 18.7°C

Final temperature of solution (T3) = 26.4°C

Specific heat capacity of water (C2) = 4.184J/g°C

Specific heat capacity of metal (C1) = 0.444J/g°C

Volume of water = 50.0mL

Assuming no heat loss

Heat energy lost by metal = heat energy gain by water + calorimeter

Heat energy (Q) = MC∇T

M = mass

C = specific heat capacity

∇T = change in temperature

Mass of metal = M1

Mass of water = M2

Density = mass / volume

Mass = density * volume

Density of water = 1g/mL

Mass(M2) = 1 * 50

Mass = 50g

Heat loss by the metal = heat gain by water + calorimeter

M1C1(T1 - T3) = M2C2(T3 - T2)

M1 * 0.444 * (155 - 26.4) = 50 * 4.184 * (26.4 - 18.7)

0.444M1 * 128.6 = 209.2 * 7.7

57.0984M1 = 1610.84

M1 = 1610.84 / 57.0984

M1 = 28.21g

The mass of the metal is 28.21g

3 0
3 years ago
scientists believe that differences in __ cause her, plastic like rock in the asthenosphere to rise towards Earth's surface
Vsevolod [243]
Temperature? Magma at different temps has different densities, less dense magmas rise to the top
3 0
3 years ago
Which of these processes are chemical reactions? 1. boiling an egg 2. crushing spices 3. vegetables rotting 4. chopping vegetabl
ivolga24 [154]
Boiling an egg and vegetables rotting . It is because chemical reaction are reactions where new substances are formed and the reaction are usually irreversible .
Hope this helps.
8 0
3 years ago
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What element is stored in the shells and skeltyons of living organisims?
kykrilka [37]

Answer:

carbon

Explanation:

Many organisms use carbon to make calcium carbonate, a building material of shells and skeletons. Other chemical processes create calcium carbonate in the water. The using up of carbon by biological and chemical processes allows more carbon dioxide to enter the water from the atmosphere.

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3 years ago
Name the 6 different Phase changes present here on Earth.
spin [16.1K]
Freezing,condensation,vaporization,sublimation
7 0
3 years ago
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