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3 years ago

What is the same for all types of electromagnetic radiation?

1 answer:

5 0

Radio Waves, Microwaves, infra-Red, Visible spectrum, Ultraviolet radiation, x-rays, Gamma Rays. Then again I could be wrong.

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In an electrical circuit, "_____" refers to the rate at which electrical energy is transformed into another kind of energy.

Tems11 [23]

Answer:

Electrical power

Explanation:

Electrical power: Electric power (P) is defined as the energy (W) used or produced or transformed per seconds.

Power = Energy produced/transformed/time taken.

P = W/t................................ Equation 1

Where t = time taken

But,

W = VIt................................ Equation 2

Substituting equation 2 into equation 1

P = VIt/t

P = VI............................ Equation 3

P = V²/R or P = I²R.

The unit of power is J/s or Volt-ampere is called watt (W).

Large amount of electric power are required in the industry

1 kW = 1000 W

1 MW = 1000000 W

1 h.p = 3/4 kW.

8 0

3 years ago

A 550 N physics student stands on a bathroom scale in an elevator that is supported by a cable. The combined mass of student plu

mario62 [17]

Answer:

(a) The elevator has an acceleration of 2.14 m/s² and direction is downward

(b) The acceleration is a=2.14 m/s²

Explanation:

Let +y be upward direction

For Part (a)

The mass of student (whose weight is 550N) is:

ms=w/g

ms=550/9.8=56.1 kg

Apply ∑Fy=ma

$n-m_{s}g=m_{s}a\\$

Solve for acceleration a

$a=\frac{n-m_{s}g}{m_{s}}\\ a=\frac{430N-550N}{56.1kg} \\a=-2.14m/s^{2}$

The elevator has an acceleration of 2.14 m/s² and direction is downward

Part(b)

For the acceleration is the scale reads 670 N

For n=670N

$a=\frac{n-m_{s}g}{m_{s}}\\ a=\frac{670N-550N}{56.1kg}\\ a=2.14m/s^{2}$

3 0

3 years ago

What are the components of vector b

Afina-wow [57]

Answer:

Explanation:

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3 years ago

What is meant by the term law of conservation?

GalinKa [24]

Answer:

Explanation:

any law stating that some quantity or property remains constant during and after an interaction or process, as conservation of charge or conservation of linear momentum.

4 0

3 years ago

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If you do 200 joules of work using a force of 50 newtons, over what distance was the force applied ?

harina [27]

By using the formula for work, we can derive the force

W = Fd
F= $\frac{W}{d} = \frac{200}{50} = 4 N$

If you found that helpful, please rate this as "Brainiest"

5 0

3 years ago

Read 2 more answers