Answer:
497.143 nm.
Explanation:
Diffraction grating experiment is actually done by passing light through diffraction glasses, the passage of the light causes some patterns which can be seen on the screen. This is because light is a wave and it can spread.
The solution to the question is through the use of the formula in the equation (1) below;
Sin θ = m × λ. ---------------------------------(1).
Where m takes values from 0, 1, 2, ...(that is the diffraction grating principal maxima).
Also, m × λ = dc/ B -------------------------------------------(2).
We are to find the second wavelength, therefore;
λ2 =( m1/c1) × (c2/m2) × λ1 ------------------------(3).
Where c1 and c2 are the order maximum and m = order numbers. Hence;
λ2 = (1/ .350) × (.870/3) × 600 = 497.143 nm.
1) The electric field between the two plates is
. The potential difference between the plates is given by
where d is the separation between the plates. By using
we find
2) The work done by the electric field to move the electron by that distance is equal to the variation of electric potential energy of the electron:
where e is the electron charge. By substituting numbers, we find
Answer:
Explanation:
Behind the second car , no of cars = 13
total mass of 13 cars = 13 x 37000 Kg
acceleration = .46 m /s²
If T be the tension
This tension is pulling 13 cars
force = mass x acceleration.
T = 13 x 37000 x .46
= 221260 N .
The volume of an object that has a mass of 16 g and a density of 12 g/cm³ is 1.33cm³.
<h3>How to calculate density?</h3>
Density is a measure of a substance mass in relation with it's volume, which means that it can be calculated by dividing the mass of the substance by volume as follows:
Density = mass ÷ volume
According to this question, an object has a mass of 16 g and a density of 12 g/cm³. The volume can be calculated as follows:
Volume = 16g ÷ 12g/cm³
Volume = 1.33cm³
Therefore, the volume of an object that has a mass of 16 g and a density of 12 g/cm³ is 1.33cm³.
Learn more about volume at: brainly.com/question/952755
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Answer:
Newton's second law of motion is also known as law of acceleration.
Force, mass and acceleration are the three factors needed two explain the law.
Explanation:
This law states that if there is an unbalanced force acted upon an object (either in rest or in motion ) the force causes an acceleration. The acceleration is directly proportional to the force.
F(net)α a, the proportionality constant is the mass of the object.
Another definition for the law is
F(net)= m.a where m stands for mass and a is acceleration.