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Anestetic [448]
3 years ago
7

Which type of electromagnetic radiation is responsible for the colors of objects?

Physics
1 answer:
Svetllana [295]3 years ago
4 0

Visible light or electromagnetic radiation within 400nm to 700nm is responsible for colour of the spectrum.

Explanation:

The electromagnetic spectrum contains radiations of varying wavelength. The radiations with the lowest energy are characterised by the longest wavelength.

Within this spectrum lies the visible light which enables us to see a different colour. The radiations within the range 400nm to 700nm are included in the visible spectrum.

While violet lies at the 400nm spectrum part red colour lies at 700nm part. As the wavelength of the radiation transverses between 400-700 nm, the colour of the object changes accordingly.

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What is the dimension symbols for energy​
Alex_Xolod [135]

Answer:

The formula of energy is mv^{2}. So, energy is ML^{2}T^{-2}. Since velocity = displacement/time.

Explanation:

If you have any questions feel free to ask in the comments - Mark

3 0
4 years ago
A 4.0 kg block is resting on a rough horizontal table. The
Novosadov [1.4K]

Answer:

I have made a mistake in my answer

6 0
3 years ago
Calculate the power of a crane if it lifts a load of 2400N through a height of 10m in 15 seconds.Also express the power in horse
dem82 [27]

Answer:

<h2>2.08 hp</h2>

Explanation:

The power of the crane can be found by using the formula

p =  \frac{f \times d}{t}  \\

f is the Force

d is the distance

t is the time taken

From the question we have

p =  \frac{2400 \times 10}{15}  =  \frac{24000}{15}  \\

We have

power = 1600 W

But 1 W = 0.0013 hp

So 1600 = 2.08 hp

We have the final answer as

<h3>2.08 hp</h3>

Hope this helps you

3 0
3 years ago
A hummingbird flies 2.0 m along a straight path at a height of 5.3 m above the ground. Upon spotting a flower below, the humming
stepan [7]

To solve this problem we will apply the concepts of Pythagoras to find the net path. An easy way is to graph the path to trace the path, which resembles that of a right triangle. The information provided is equivalent to that of the two short sides of the triangle, so we will find the longest side by the Pythagorean theorem. In this way,

OC = \sqrt{2^2+2.4^2}

OC = 3.12m

Therefore the magnitude of the hummingbird’s total displacement is 3.12m

6 0
4 years ago
What is the square root of 25x10^12
kirill115 [55]

\sqrt{25 \times 10^{12} }

In order to find it's square root, we could make it into two square roots.

\sqrt{25 \times 10^{12} } = \sqrt{25} \times \sqrt{10^{12}}

Let us find the square roots of both radicals seprately.

\sqrt{25} =\sqrt{5*5}=5

Each  pair  of a number inside square root gives a number out .

\sqrt{10^{12}} = \sqrt{10*10*10*10*10*10*10*10*10*10*10*10}   \ \ ( \ makes \ 6 \ pairs \ of \ 10 )

\sqrt{10*10*10*10*10*10*10*10*10*10*10*10} = 10*10*10*10*10*10

= 10^6.

Therefore,

\sqrt{25 \times 10^{12} }=\sqrt{25} \times \sqrt{10^{12}}={5 \times 10^6}

\sqrt{25 \times 10^{12} } = {5 \times 10^6}

7 0
3 years ago
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