All categories

3 years ago

The wavelength of some green light is 530.0 nm. what is the frequency of this green light?

1 answer:

3 0

<span>Frequency is calculated by dividing the speed of light by the wavelength. Using the normal constant of 3x10^8 m/s divided by 530 nm you can calculate it. You need to convert nm to m so it is 5.3x10^-7. Divide the constant of light by that and you get 5.66 x10^14 hz, where hz is the function 1/s.</span>

You might be interested in

A positively charged glass rod attracts object X. The net charge of object X:A.may be zero or negative.B.may be zero or positive

Damm [24]

Answer:A

Explanation:

A positively charged glass rod attracts object x. So, object x must be negatively charged or uncharged.

This occurs because opposite charges attract each other or either object x is uncharged and a negative charge is induced in it as glass rod approach the object x.

So option A is correct

8 0

3 years ago

A 3-kg block is observed to accelerate at a rate twice that of a 6-kg block. is the net force acting on the 3-kg block twice as

Ahat [919]

................................................................................

4 0

3 years ago

How is the mechanical efficiency of a machine usually expressed?

coldgirl [10]

Answer:

As a percentage

Explanation:

The mechanical efficiency of a machine is the percentage of energy in input to the machine that is converted into useful work.

Mathematically, the efficiency of a machine is given by:

$\eta=\frac{W}{E}\cdot 100$

where:

W is the useful work in output from the machine

E is the energy in input to the machine

For example, a machine with 80% efficiency means that it converts 80% of the input energy into work.

A machine can never be 100% efficient, since part of the input energy is wasted due to the presence of frictional forces.

So, the efficiency of a machine is expressed as a percentage.

3 0

3 years ago

_SF4 + _H2O -> _H2SO3 + _HE

satela [25.4K]

Answer:

SF4 + 3H2O → H2SO3 + 4HF

Explanation:

I found it

6 0

3 years ago

A body's current radiation rate is 30% higher than it was an hour ago. Calculate the percentage by which your temperature increa

AlekseyPX

Answer:

6.8%

Explanation:

According to Stefan-Boltzmann law, radiation is directly proportional with temperature raised to the fourth power:

P ∝ T⁴

Writing a proportion:

P₁ / P₂ = T₁⁴ / T₂⁴

1.3P / P = (T₁ / T₂)⁴

T₁ / T₂ = ∜1.3

T₁ = 1.068 T₂

The temperature increased by 6.8%.

5 0

3 years ago