3 years ago

Just how small do you think an individual atom is

Physics

2 answers:

jok3333 [9.3K]3 years ago

8 0

An atom is probably less than 1 nano-meter in size

harina [27]3 years ago

8 0

An atom is so miniscule that you can't even see a single atom. Think of the smallest thing in the world and know that possibly millions of atoms form that object

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On a cold winter day, a penny (mass 2.50 g) and a nickel (mass 5.00 g) are lying on the smooth (frictionless) surface of a froze

aleksklad [387]

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3 years ago

Which best describes most covalent compounds? O soft O brittle 3 O cold O warm

LUCKY_DIMON [66]

Answer: Brittle

Explanation:

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3 years ago

If the mass of an object is 8 kg and its momentum is -80 kgm/s, what is its velocity?

Dimas [21]

An object's momentum is the product of its mass and its velocity:

p = mv

p is its momentum, m is its mass, and v is its velocity.

Given values:

p = -80kg×m/s

m = 8kg

Plug in these values and solve for v:

-80 = 8v

v = -10m/s

Choice D

4 0

3 years ago

A ship's propeller of diameter 3 m makes 10.6 revolutions in 30s. What is the angular velocity of the propeller?

ycow [4]

Answer:

The angular velocity of the propeller is 2.22 rad/s.

Explanation:

The angular velocity (ω) of the propeller is:

$\omega = \frac{\Delta \theta}{\Delta t}$

Where:

θ: is the angular displacement = 10.6 revolutions

t: is the time = 30 s

$\omega = \frac{\Delta \theta}{\Delta t} = \frac{10.6 rev*\frac{2\pi rad}{1 rev}}{30 s} = 2.22 rad/s$

Therefore, the angular velocity of the propeller is 2.22 rad/s.

I hope it helps you!

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3 years ago