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Elena-2011 [213]
3 years ago
10

Green light shines through a 100-mm-diameter hole and is observed on a screen. If the hole diameter is increased by 20%, does th

e circular spot of lig
Physics
1 answer:
Sergio [31]3 years ago
6 0
I think it’s by 17 percent
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A ball is dropped from the ceiling and free falls to the floor. Which one of the
Alex73 [517]

Answer:

A

Explanation:

Gravity

5 0
3 years ago
At standard temperature and pressure, carbon dioxide has a density of 1.98 kg/m3. What volume does 1.70 kg of carbon dioxide occ
nikitadnepr [17]

Answer:

<h2>volume= 0.85m^3</h2>

Explanation:

<em>The density of a substance is defined as the mass per unit volume of the substance, the unit is in kg/m^3 and it is represented by the greek letter rho</em>

Step one:

given data

we are told that the density  of Co2=  1.98 kg/m3

and the mass of Co2 is= 1.70 kg

we know the relation between mass, volume and density is

density=mass/volume

make volume subject of formula we have

volume=mass/density

substitute we have

volume=1.7/1.98\\\\volume= 0.85m^3

8 0
3 years ago
If a reaction occurs when a piece of metal is placed in a solution, what can you conclude about the solution?
Tju [1.3M]
You can conclude that the solution is probably acidic because bases rarely react with metals.
5 0
2 years ago
What's the value of 1,152 Btu in joules? A. 1,964,445 J B. 2,485,664 J C. 987,875 J D. 1,215,360 J
OLga [1]

Answer: Option (d) is correct.

Explanation:

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Hence, from the given options the closest answer is of option (d). So, option (d) is correct.

4 0
3 years ago
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Can an object have two types of energy at one time?
Digiron [165]
Yes, of course, a good example would be us.

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3 years ago
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