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Gwar [14]
4 years ago
14

Lenses can be found in a variety of objects which example does not have a lens?

Physics
2 answers:
Burka [1]4 years ago
4 0
Tbh ! All of them have lens but I would go with B.) Smart Phone 

Hope This Helps !!!
Aleksandr [31]4 years ago
4 0

Answer:

The correct option is B). Smart phone.

Explanation:

Consider the provided options:

Diving masks and night vision goggles have a lens.

Electron microscopes have electromagnetic lenses or electron optical lens systems.

Which means diving mask, electron microscope and night vision goggles have a lens.

Thus, the correct option is B). Smart phone.

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The MSDS for glacial acetic acid says that it is a flammable liquid that can severely burn any human tissue it comes in contact
Alex777 [14]

Answer: D) It should be handled in a fume hood, away from open flames.

3 0
3 years ago
Hydrogen gas is generated when acids come into contact with certain metals. When excess hydrochloric acid reacts with 2.2 g of (
CaHeK987 [17]

To solve the problem it is necessary to apply the concepts related to Byle's Law and Avogadro's Law.

The ideal gas equation would help us find the final solution to the problem, defined by

PV = nRT

Where,

T= Temperature of the gas

R = Universal as constant

n = number of moles

V = Volume

P = Pressure

For our case we have that the mass of Zn is 2.2g in moles would be

[tex]Zn = \frac{2.2}{65}[/tex]

Zn = 0.0338

We know that 1 mole of hydrogen gas is proceed by 1 mole of zinc and the result is Zn^{2+}, then Hydrogen can produce the same quantity,

H_2 = 0.0338

Applying the previous equation we have that

V= \frac{nRT}{P}

V = \frac{0.0338*0.08206*293.15}{0.98}

V = 0.829L

Therefore the volume of hydrogen gas is collected is 0.829L

6 0
3 years ago
A certain fluid (with properties listed below) is heated from 25 to 75 °C as it moves at 0.2 m/s through a straight thin-walled
dexar [7]

Answer:

not sure. I'll try answering this later

Explanation:

I'm not sure. I'll try answering this later .

3 0
3 years ago
How to tell if a circuit is connected in.a series.or parallel?
stepladder [879]

Series circuits split the voltage of resistors, so if you see several diodes connected <em>in series </em>or all next to each other, just a complete loop, it will be in series.

Parallel circuits split the current of resistors, so if you see several diodes connected along different branches or pathways, it will be in parallel.

7 0
3 years ago
a car is moving with a constant speed of 20 meters per second.What total distance does the car travel in 2 minutes
N76 [4]
There are 120 seconds in two minutes, so to find the answer, you multiply 20 x 120 to get 2400 meters.
8 0
3 years ago
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