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3 years ago

Which three forms of light are invisible light?

Physics

2 answers:

Snowcat [4.5K]3 years ago

8 0

Answer:

infrared rays, microwaves and X rays

Explanation:

The visible part of the electromagnetic waves contains the following

1. Violet

2. Indigo

3. Blue

4. Green

5. Yellow

6. Orange

7. Red

So, Infrared rays, radio waves and X rays are invisible part of the electromagnetic radiations.

Korvikt [17]3 years ago

6 0

I would say radio waves infared rays and xray

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An electron with a charge e and mass m is accelerated from rest for a time T by a uniform electric field that exerts a force F o

Basile [38]

Answer:

$E =\frac{F}{e}$

Explanation:

charge of the electron = e

mass of the electron = m

Force due to electric field = F

initial velocity = 0

time taken = T

Electric field is the region around a particle which is charge where in a force is exerted on another particle which is charged.

Force on electron due to presence of uniform electric field (E):

F = e E

⇒ $E =\frac{F}{e}$

5 0

3 years ago

help plz! what vibrates in following types of wave motion 1)light wave 2)sound waves 3)x-rays 4)water waves

Alecsey [184]

Answer:

I believe it's 2) sound waves

Explanation:

With sound waves, the energy travels along in the same direction as the particles vibrate. This type of wave is known as a longitudinal wave, so named because the energy travels along the direction of vibration of the particles.

7 0

2 years ago

The free body diagram represents Silly Sally hanging from a trapeze bar. Sally weighs 660 Newtons. What is the force in each of

Y_Kistochka [10]

A) 330 N

Explanation: Her weight must be evenly distributed between the chains (assuming they are at an even level), so you divide 660 by 2 and get 330

7 0

3 years ago

A solar panel measures 0.57 m by 1.3 m. In direct sunlight, the panel delivers 6.6 A at 6 V. If the intensity of sunlight is 300

zheka24 [161]

Answer:

efficiency of solar panel is 18%

Explanation:

Energy received by the sunlight is given as

$Power = intensity \times area$

here we know the dimensions of the plate as

$L = 0.57 m$

$W = 1.3 m$

now we have

$Area = (0.57)(1.3) m^2$

$A = 0.741 m^2$

now the power received by the sun light is given as

$P_1 = 0.741(300) = 222.3 W$

now the output power due to solar panel is given as

$P_{out} = V i$

$P_{out} = (6.6 A)(6 V)$

$P_{out} = 39.6 Watt$

now the efficiency is given as

$\eta = \frac{P_{out}}{P_{in}}$

$\eta = \frac{39.6}{222.3}$

$\eta = 0.18$

8 0

3 years ago

An object is acted upon by a force of 22 newtons to the right and a force of 13 newtons to the left. What is the magnitude and d

ale4655 [162]

<span>An object is acted upon by a force of 22 newtons to the right and a force of 13 newtons to the left.

(1) 22 N to the right
(2) 13 N to the left.

magnitude = 22 - 13
magnitude = 9

Direction would be to the right.

So magnitude is 9N direction to the right.</span>

8 0

3 years ago