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Firdavs [7]
3 years ago
10

What distance does electromagnetic radiation travel in 55.0 μs ?

Physics
1 answer:
Komok [63]3 years ago
4 0
Electromagnetic radiation is an energy that is known as light. so electromagnetic radiation will have the same speed as the speed of light which is 3 x 10^8 m/s. so the distance it travel at 55 x 10^-6 s is:
D = ( 3 x 10^8 m/s ) (  55 x 10^-6 s )
D = 16500 m
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Newton’s Third Law describes two different bodies acting on each other.
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5 0
3 years ago
What is the difference between a spring tide and a neap tide
kkurt [141]

Answer:

Spring tide is a tide with largest difference between the high and tide and the  low tide on the earth on a solar day.

Neap tide is the tide with the least difference between the high and low tides on the earth in a solar day.

Explanation: Tide is the rise or fall in the level of water bodies which is easily detectable on the shore of the water bodies. This rise and fall is caused by the gravitational pull of the moon and sun in resultant.

Gravitational force between the 2 masses is mathematically given as:

F=\frac{G. M_1.M_2}{r^2}

where:

  • G= gravitational constant =6.67 \times 10^{-11} N.m^2.kg^{-2}
  • M_1=mass of body 1
  • M_2= mass of body 2
  • r= distance between the center of the masses.

The water on the earth acts as a membrane sue to the gravity of earth and its own surface tension.

During spring tide the earth, the moon and the sun are in a starlight line developing a greater net force on the earth due to which the membrane of the water present on the earth gets stretched by the maximum force in such condition when it is a new moon day or a full moon day.

During Neap tide the moon, and the sun are at right angles with respect to the earth developing a lesser net force on the earth due to which the membrane of the water present on the earth gets a lesser pull by the force components in such condition when it is a first quarter moon or a third quarter moon .

5 0
3 years ago
2. Elements in a family have the same
pochemuha

Answer:

Elements in a family have the same

Ans C. number of valence electrons

3 0
2 years ago
A charge Q is transferred from an initially uncharged plastic ball to an identical ball 24 cm away.The force of attraction is th
xxMikexx [17]

Answer:

The number of electrons transferred from one ball to the other is 2.06 x 10¹² electrons

Explanation:

Given;

magnitude of the attractive force, F = 17 mN = 0.017 N

distance between the two objects, r = 24 cm = 0.24 m

The attractive force is given by Coulomb's law;

F = \frac{1}{4\pi \epsilon _0} \times \frac{Q^2}{r^2} = \frac{kQ^2}{r^2} \\\\Q^2 = \frac{Fr^2}{k} \\\\Q = \sqrt{ \frac{Fr^2}{k}} \\\\Q = \sqrt{ \frac{(0.017)(0.24)^2}{9\times 10^9}} \\\\Q = 3.298 \times 10^{-7} \ C

The charge of 1 electron = 1.602 x 10⁻¹⁹ C

n(1.602 x 10⁻¹⁹ C) = 3.298 x 10⁻⁷

n = \frac{3.298 \times 10^{-7}}{1.602 \times 10^{-19}} = 2.06 \times 10^{12} \ electrons

Therefore, the number of electrons transferred from one ball to the other is 2.06 x 10¹² electrons

4 0
2 years ago
What is the major limitation to the light microscope?
Degger [83]
The wavelength of visible light ranges from about 400 to 700 nanometers.
4 0
3 years ago
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