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3 years ago

13

Describe the shape of the light waves that would be created from a single uncovered light bulb

2 answers:

aliya0001 [1]3 years ago

4 0

The shape of the wave will be like that of a sine curve, and it will repeat periodically over a time interval.
Its wavelength will be between 400 nm and 700 nm.

dem82 [27]3 years ago

3 0

The light emitted by the bulb is a visible light spectrum where a monochromatic ray is subdivided into multiple rays that have different colors.

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An astronaut stands by the rim of a crater on the Moon, where the acceleration of gravity is 1.62 m/s2 and there is no air. To d

Nesterboy [21]

Answer:

12.1 seconds

Explanation:

t = Time taken

u = Initial velocity

v = Final velocity = 0

s = Displacement = 120 m

a = Acceleration due to gravity on Moon = 1.67 m/s²

Equation of motion

$v^2-u^2=2as\\\Rightarrow -u^2=2as-v^2\\\Rightarrow -u^2=2\times -1.67\times 120-0^2\\\Rightarrow u=\sqrt{2\times 1.67\times 120}\\\Rightarrow u=20.02\ m/s$

$v=u+at\\\Rightarrow t=\frac{v-u}{a}\\\Rightarrow t=\frac{0-20.2}{-1.67}\\\Rightarrow t=12.1\ s$

Time taken by the rock to hit the bottom of the crater is 12.1 seconds

5 0

3 years ago

A bicycle has a mass of 10kg and an acceleration of 2m/s². What is the net force of the bicycle?

kobusy [5.1K]

Answer:

<h3>The answer is 20 N</h3>

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

<h3>Force = mass × acceleration</h3>

From the question

mass = 10 kg

acceleration = 2 m/s²

We have

Force = 10 × 2

We have the final answer as

<h3>20 N</h3>

Hope this helps you

4 0

3 years ago

URGENT! PLEASE ANSWER!!

Marrrta [24]

Answer:

C

Explanation:

The answer is obvious from the given figure

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3 years ago

is it possible for the thermal energy in a bowl of cold water equal to the thermal energy in a bowl of hot water

iris [78.8K]

No, it is not possible for thermal energy to be equal in both bowls.

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3 years ago

The ability to react with air is a

seraphim [82]

I already said it but its reactivity

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3 years ago

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