Answer:
KE = 100 J
Explanation: Should be correct
Answer:
Balanced forces are responsible for unchanging motion. Balanced forces are forces where the effect of one force is cancelled out by another. A tug of war, where each team is pulling equally on the rope, is an example of balanced forces. The forces exerted on the rope are equal in size and opposite in direction.
Explanation:
<em>The correct option is </em><em>A</em>. The information we know about the known exoplanets is estimates of orbits and masses.
<h3>What is exoplanets?</h3>
An exoplanet or extrasolar planet is a planet outside the Solar System.
In other words, exoplanet is any planet beyond our solar system.
<h3>Characteristics of exoplanets</h3>
exoplanets are known for the following characteristics;
- they are usually hot
- they can orbit their stars so tightly that a “year” lasts only a few days
- they can orbit two suns at once
Thus, the information we know about the known exoplanets is estimates of orbits and masses.
Learn more about exoplanets here: brainly.com/question/1514493
#SPJ1
-- The lenses of eyeglasses work because of refraction.
-- A pencil standing in a half-glass of water looks broken because of refraction.
-- The lenses and mirrors in telescopes and microscopes work because of refraction.
-- When the sun is setting and it looks squashed ... shorter and wider than a true circle ... that's caused by refraction of the sunlight through Earth's atmosphere.
Answer:
The equilibrium points include
x₁ = - 1.177
x₂ = 0
x₃ = 1.177
Explanation:
At equilibrium, the sum of forces acting on a body is equal to zero.
F(x) = ax (b − cx²) [a = 8.97, b = 7.83, c = 5.65]
F(x) = (abx - acx³)
= (8.97×7.83)x - (8.97×5.65)x³
F(x) = 70.2351x - 50.6805x³
At equilibrium, F(x) = 0
70.2351x - 50.6805x³ = 0
x(70.2351 - 50.6805x²) = 0
x = 0 or (70.2351 - 50.6805x²) = 0
70.2351 - 50.6805x² = 0
50.6805x² = 70.2351
x² = (70.2351/50.6805)
x² = 1.385840708
x = ± 1.177
So, x = -1.177, 0 and 1.177
x₁ = - 1.177
x₂ = 0
x₃ = 1.177
Hope this Helps!!!
