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vesna_86 [32]
3 years ago
15

Help me please :3 :3 :3 ;3

Chemistry
2 answers:
tester [92]3 years ago
7 0
I think the correct answer is b
bekas [8.4K]3 years ago
6 0
I think the correct answer would be B) Suggestion 1
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I need the answer for this question
ch4aika [34]
I want to say A only... Hope I helped!!
5 0
3 years ago
If you pump air into cycle tyre a slight warming effect is noticed at valve stem why
SSSSS [86.1K]
Probably the kinetic energy of rubbing the pump against the valve, combined with the increase in gas pressure in the tire itself.
8 0
3 years ago
1. a.) Calculate the wavelength of light which has a frequency of 5.25 x 10 14 Hz.
Scilla [17]
<h3>Answer:</h3>

5.71 × 10² nm

<h3>Explanation:</h3>

The product of wavelength and frequency of a wave gives the speed of the wave.

Therefore;

Velocity of wave = Wavelength × Frequency

c = f ×λ

In our case;

Frequency = 5.25 × 10^14 Hz

Speed of light = 2.998 × 10^8m/s

But;

λ = c ÷ f

  = 2.998 × 10^8m/s ÷  5.25 × 10^14 Hz

  = 5.71 × 10^-7 m

But; 1 M = 10^9 nm

Therefore;

wavelength = 5.71 × 10^-7 × 10^9

                  = 5.71 × 10² nm

The wavelength of light wave 5.71 × 10² nm

3 0
3 years ago
How is thermal energy transferred during conduction? Check all that apply.
Dvinal [7]

Answer:

Thermal energy is transferred between particles that are in direct contact with each other.

Thermal energy is transferred between objects of different temperatures.

Thermal energy is transferred from fast-moving particles to slow-moving particles.

Explanation:

5 0
3 years ago
I'm in a rush please help
Alexeev081 [22]

16) <

17) >

18) =

19) =

20) <

21) >

4 0
4 years ago
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