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a_sh-v [17]
3 years ago
7

An iron nail is made up of particles. What is true about the particles?Why does ice float on water?

Physics
1 answer:
Archy [21]3 years ago
4 0

Answer: i know that ice is denser than water because of the reason why ice is expanding:air. ice has tiny air packets inside that make it bigger than the original state(the state which a substance is at at room temperature.

Explanation:

Iron is an element that has been known in its pure form for at least 5,000 years. The name "iron" comes from the...

The element symbol for iron is Fe, which comes from the Latin word for iron, "ferrum."

Iron is one of the most plentiful elements. It comprises about 5.6 percent of the Earth's crust and almost all of its core

Iron is a transition metal.

Animals and plants require iron. Plants use iron in chlorophyll, the pigment used in photosynthesis. Humans use iron in hemoglobin molecules in blood to allow for the transport of oxygen to tissues throughout the body.

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1) How is density different than mass?
elixir [45]
Mass is a measure of how much matter there is within an object, typically given in grams. Mass is not affected by gravity, so a given object would have the same mass on earth as in outer space. Density is the amount of mass in an object per a certain amount of volume
3 0
3 years ago
What are some climate facts
aleksley [76]
The greenhouse effect is a warming effect caused by certain gases that retain heat from sunlight. Without such gases, the average surface temperature of the Earth would be below freezing, and as explained by the Encyclopedia of Environmental Science, “life, as we know it, would not exist.” 
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5 0
3 years ago
If a 375 watt heater has a current of 5.0 A, what is the resistance of the heating element?
liberstina [14]
P=IV
V=IR

P=I(IR)
P=I²R
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R=15
7 0
4 years ago
A stone is thrown horizontally with an initial speed of 10 m/s from the edge of a cliff. A stopwatch measures the stone's trajec
olga2289 [7]

Answer:

The height of the cliff is 90.60 meters.

Explanation:

It is given that,

Initial horizontal speed of the stone, u = 10 m/s

Initial vertical speed of the stone, u' = 0 (as there is no motion in vertical direction)

The time taken by the stone from the top of the cliff to the bottom to be 4.3 s, t = 4.3 s

Let h is the height of the cliff. Using the second equation of motion in vertical direction to find it. It is given by :

h=u't+\dfrac{1}{2}gt^2

h=\dfrac{1}{2}gt^2

h=\dfrac{1}{2}\times 9.8\times (4.3)^2

h = 90.60 meters

So, the height of the cliff is 90.60 meters. Hence, this is the required solution.

5 0
3 years ago
HELPP ILL GIVE BRIANLISG
STatiana [176]

Answer:

31. Respiratory System

32. Excretory System

33. Nervous System

34. Reproductive system

35. Skeleton System

Explanation:

Hope it helps you.^_^

6 0
3 years ago
Read 2 more answers
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