CHEMISTRY MIDDLE SCHOOL

How do light technologies typically produce color images?A) by manipulating the angles at which light enters a lens
B) by energizing light waves with electric currents
C) by combining light of different frequencies
D) by concentrating light into a very small range of wavelength

Answers

Answer 1
Answer: How do light technologies typically produce color images? Light technologies typically produce color images by manipulating the angles at which light enters a lens. The answer is letter A.
Answer 2
Answer:

Answer:

C) By combining light of different frequencies. Hope this helps!

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What type of bond is methane?

Answers

It has 1 carbon atom and 4 hydrogen atoms, it is also know as a saturated chemical due to all bonds being used.

The center of an atom is called the

Answers

The center of an atom is called the nucleus where the protons and neutrons are.  Hope it helps!! 

When an animal behaviriost attempts to explain or interpret her observations, she is ___________.

Answers

Answer:

B.) Possibly making an infrence.

Explanation:

Judging on what sshe saw, she can try to infer or come up with an answer. [based on what she observed.]

6. What is SEAgel?a lightweight foam insulation
a skin conditioner made from seaweed
a semi-liquid semiconductor

Answers

The answer that you are looking for would be a

Answer:

a lightweight foam insulation

Explanation:

A 3.90L sample of gas at STP is cooled to -55oC at 808mmHg. What is the new volume?

Answers

Answer:

3.72L

Explanation:

Given parameters:

Initial volume V₁ = 3.9L

Condition  = STP

Final temperature T₂ = -550°C

Final pressure P₂  = 880mmHg

Unknown:

Final volume V₂  = ?

Solution.

At standard temperature and pressure(STP), the:

           Pressure  = 1atm   = 760mmHg

            Temperature  = 273K

Therefore, P₁  = 760mmHg

                  T₁  = 273K

The general gas law, is best to solve this problem. It is mathematically given as:

           (P_(1) V_(1) )/(T_(1) ) = (P_(2) V_(2) )/(T_(2) )

Let us take the units to the appropriate one;

      -550°C  = 273 + (-550) = -277K

Input the variables;

             (760 x 3.9)/(273) = (808 x V_(2) )/(-277)

        V₂  = 3.72L

           

A force of 12.5 N is appiled to 10 kg mass

Answers

To find the acceleration, use the formula: force= mass x acceleration.12.5 N = 10 x AccelerationAcceleration = 12.5 / 10Acceleration = 1.25Hope this helps :)
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