Answer:
W = 76 N
Explanation:
In this exercise you are asked to find the weight of the body.
Mass is a quantity that is invariant, it measures the same everywhere, the weight depends on where it is measured, a simple way to find the weight of a body is
W = g m
where g is the constant of the place, in this case we have the weight of the body on Mars and its mass which is constant on Earth and on Mars
W = 3.8 20
W = 76 N
Answer:
Explanation:
The principle of energy conservation states that energy is transformed from one form to another, in this case, the potential energy will be transformed into kinetic energy. When the Rock is at the highest point, its potential energy is maximum and, as the rock falls, its potential energy decreases as it increases its kinetic energy, the kinetic energy will be maximum at the time that the rock hits the ground, the value of this energy is equal to that of the rock at the time it is located in the top of the mountain.
10pi is the answer. i believe. i hope this helps.
Answer:
Gases and particles in Earth's atmosphere scatter sunlight in all directions. Blue light is scattered more than other colors because it travels as shorter, smaller waves. This is why we see a blue sky most of the time.
Answer:
The ratio of the refractive indices of the liquids is 1.22
Solution:
Critical angle for A and B interface,
Critical angle for A and B interface,
Now,
From the relation in between the critical angle and refractive index:
(1)
where
n = rafractive index
= critical angle
Thus
For AB interface:
For AC interface:
Thus the ratio of the refractive indices of these liquids can be given as: