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Alona [7]
4 years ago
12

Stars do not exist as separate entities in space, but instead belong to large groups of other stars that are held together by th

e force of gravity. what is the term describing a large grouping of stars in space?
Physics
1 answer:
vlabodo [156]4 years ago
8 0
I think the answer to your question is a galaxy. 
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The amount of light lost within a fiber-optic system is known as
densk [106]
Attenuation is the correct answer. 
6 0
3 years ago
A wooden block is pulled at a constant acceleration of 1.4 m/s2. Find the net applied force on the block if its mass is 0.6 kg.
neonofarm [45]

Answer:

F = 0.84 [N]

Explanation:

In order to solve this problem we must take into account Newton's second law, which tells us that the sum of all forces applied on a body must be equal to the product of the mass of the body by its acceleration.

F = m*a

where:

F = force [N]

a = acceleration = 1.4[m/s^2]

m = mass = 0.6 [kg]

F = 0.6*1.4

F = 0.84 [N]

7 0
4 years ago
At takeoff, the horizontal and vertical velocity of long jumper are 57.8 m/s and 5.6 m/s respectively. What is the resultant vel
Lady bird [3.3K]

Apply the Pythagorean theorem to get the resultant velocity:

V = \sqrt{Vx^{2}+Vy^{2}}

Given values:

Vx = 57.8m/s

Vy = 5.6m/s

Plug in and solve for V:

V = 58.1m/s

EDIT: Let's get the direction of the resultant velocity as well.

This equation will give the angle of the velocity as measured off of the ground:

θ = tan⁻¹(Vy/Vx)

Again, the given values are:

Vx = 57.8m/s

Vy = 5.6m/s

Plug in the values and solve for the angle θ:

θ = tan⁻¹(5.6/57.8)

θ = 5.5°

The resultant velocity is oriented 5.5° off the ground.

5 0
3 years ago
What does grit mean in psychology
andrew11 [14]

Answer:

The meaning of grit in psychology is a positive, non-cognitive trait based on an individual's perseverance of effort combined with the passion for a particular long-term goal or end state.

8 0
3 years ago
according to adam smith and other classical economists, why is the economic theory supporting market economies(or capitalism) mu
grin007 [14]
Classical economics is a branch of the economics that states that economy is always moving towards equilibrium, which means that a change in supply will eventually be matched by a change in demand. The father of classical economics  is Adam Smith with his book<span> The Wealth of Nations in 1776.</span>
The economic theory supporting market economies (or capitalism) is much more realistic than theories supporting command economiesIt is based on self interest.
3 0
4 years ago
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