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hichkok12 [17]
4 years ago
14

After walking across a carpet, a boy feels a spark between his hand and a doorknob.

Physics
1 answer:
Inessa05 [86]4 years ago
4 0
B I think I'm not sure
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Cosmic Microwave Background radiation is one piece of supporting evidence for the Big Band Theory. Are these microwaves at the l
dolphi86 [110]

Answer:

it is long.

Explanation:

I know the answer but I don't know how to explain it

3 0
3 years ago
A wave has a speed of 50 m/s and a frequency of 100 Hz. Calculate its wavelength.
Allisa [31]

Answer:

1/2m or 0.5m

Explanation:

The formula to find the speed of a wave is given by:

V = frequency x wavelength

To find the wavelength, make the wavelength the subject of the formula

Therefore, wavelength = velocity ÷ frequency

8 0
3 years ago
A rocket ship has several engines and thrusters. While the Solid Rocket Booster (SRB) and main engines only work together during
Alexeev081 [22]

The acceleration of the SRB and main engine during the first 2.0 minutes of flight is 52.16 m/s².

The given parameters;

  • <em>initial velocity of the engine, u = 1341 m/s</em>
  • <em>final velocity of the engine, v = 7600 m/s</em>
  • <em>time of motion, t = 2 minutes = 2 x 60 s = 120 s</em>

The acceleration of the SRB and main engine is calculated as follows;

a = \frac{\Delta v}{\Delta t } \\\\a = \frac{7600 - 1341}{2 \times 60  s} \\\\a = 52.16 \ m/s^2

Thus, the acceleration of the SRB and main engine during the first 2.0 minutes of flight is 52.16 m/s².

Learn more here:brainly.com/question/17067013

4 0
3 years ago
Which of the following is a subatomic particle?
mr Goodwill [35]

Answer:

neutron.

Explanation:

subatomic particles include,

neutron.

proton.

electron.

hope it helps. :)

4 0
3 years ago
Why is the scientific method described as cyclic?
Troyanec [42]
Because the scientific method can go around in a circle as many times as neccisary to get the results you need
8 0
4 years ago
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