Given the index of refraction, n and speed of light in the vacuum, c, we can solve for the speed of light in the transparent substance by the equation below.
n = c / v
where v is our unknown.
Substituting the known values,
1.7 = (3 x 10^8 m/s) / v
The value of v is equal to 1.76 x 10^8 m/s.
Sample Response: How can magnetic and electric fields be demonstrated?
Permanent magnets are important for their industrial uses especially when it comes to power generation and electric motors. The induction process for turbines and generators needs permanent magnets to turn mechanical motion into energy.
Exposing magnetized magnets to opposing external fields produces a demagnetizing effect. This effect is most apparent in permanent magnet materials having a non-linear demagnetization curve, such as Alnico. ... Other factors such as SHOCK and VIBRATION have very little effect on today's permanent magnet materials.
Weight is the force applied on the planet by its mass. The weight of an object is 6 times lighter than that of the earth. Option C is correct.
What is Wight?
- It is the product of the mass and the gravitational acceleration.
- Weight is the force applied on the planet by its mass.
The formula of weight is,
Where,
- weight
- mass
- gravitational acceleration
In the question given here the gravitational acceleration of the moon is 6 times less than that of the earth.
Therefore, the weight of an object is 6 times lighter than that of the earth.
Learn more about gravitational acceleration:
brainly.com/question/10888182
