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Phantasy [73]
3 years ago
8

I need help with this problem​

Physics
1 answer:
ki77a [65]3 years ago
6 0

Answer:

use science and math

Explanation:

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Gnoma [55]

Answer:

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3 0
3 years ago
PLEASE HELP The United States spends over $20 billion a year on space exploration through NASA. Do you think that this has been
lukranit [14]

Answer: I think $20 billion a year it’s worth the cost. The reasoning behind that is because we can conduct research on various things that could help out humanity. Therefore we can conclude that’s spending billions of dollars every year is worth it.

Explanation:

4 0
3 years ago
Give an example of each element,compound, and mixture
maria [59]

Answer:An element cannot be broken down into any other substance. ... Compounds are substances made from atoms of different elements joined by chemical bonds. They can only be separated by a chemical reaction. Common examples are water (H2O), salt (sodium chloride, NaCl), methane (CH4).

Explanation:I hope this helps

3 0
3 years ago
Read 2 more answers
What are physical characteristics of roundworms? Hint: There are two stages of reproduction.
IgorC [24]

Answer:

Roundworms:

The size of roundworms ranges from microscopic to as long as a meter long. Most roundworms have a hard, sharp lance on their head, and some have bristles on the head. Most of the roundworms are protected by an adaptable yet solid, furrowed body covering.  

Roundworms are very primitive living beings, having no respiratory or circulatory system of a host. They have an empty body with two openings at the closures. Be that as it may, the head isn't particular or recognizable to the unaided eye.  

Roundworms reproduce sexually and can finish their life cycle in immature puppies, however as the little pupps immunity system develops (for the most part by a half-year-old enough), the larval phases of the roundworm will become captured and will encyst (become encased in a sore) in the puppy's muscles. They can stay encysted in the pooch's tissues for a considerable length of time or years.

6 0
4 years ago
What is the total translational kinetic energy of the air in an empty room that has dimensions 9.00m×14.0m×5.00m if the air is t
Lera25 [3.4K]

Answer:3.92475J

Explanation:

ideal gas equation

PV=nrT

P=pressure

V=volume 9*5*14=630m^3

n=mole

Mole=mass/molecular mass

molecular mass of air=28.1g/mol

R=gas constant

T=temperature in kelvin

1.01*10^5*630=(m/28)*8.314j/molK *273K

784959.5677356082g

784.95kg

Kinetic energy=0.5*m*v^2

Velocity of air

0.5*784.95kg*0.1^2

K.E=3.92475J

6

8 0
3 years ago
Read 2 more answers
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