The first time we read this, we think that we'll have to go look up a bunch of stuff about the gravitational constant, centripetal force, orbital mechanics, the Moon's period of revolution, and who knows whut owl !
But you know whut ? The only thing we need is Newton's 2nd law:
F = m A
Divide each side by m :
Acceleration = Force / mass
Acceleration = (2.03 x 10²⁰ Newtons) / (7.35 x 10²² kg)
Acceleration = (2.03 x 10²⁰ / 7.35 x 10²² kg) (m/s²)
<em>Acceleration = 0.00276 m/s²</em>
Because once you use oil you can not reuse it but the sun you can because it is always here and it has solar energy
Answer:
c. 70 Ω
Explanation:
The R and R resistors are in parallel. The 2R and 2R resistors are in parallel. The 4R and 4R resistors are in parallel. Each parallel combination is in series with each other. Therefore, the equivalent resistance is:
Req = 1/(1/R + 1/R) + 1/(1/2R + 1/2R) + 1/(1/4R + 1/4R)
Req = R/2 + 2R/2 + 4R/2
Req = 3.5R
Req = 70Ω
Answer:
Explanation:
Work done is defined as the product of force and the displacement in the direction of force.
W = F x d x Cos θ
Where, θ be the angle between force and the displacement.
The force of gravity acts downwards and the displacement is in upward, so the angle is 180. cos 180 = -1 , so the work done by the force of gravity is negative.
The force of rope acting in upwards direction and displacement also in upwards direction.
So, the work done is positive
Given what we know, the statement that "if the part you are designing is completely symmetric, you can complete the part by designing just half of the part and using one mirror feature" is true.
<h3>Why is this statement true?</h3>
Symmetry is when something is exactly the same on either side.
This line can be drawn anywhere but is most commonly a vertical line splitting the object in question down the middle.
Since the object is identical on both sides, using a mirror to flip the completed half to the other side, will effectively give you the finished product.
Therefore, given that when something is entirely and perfectly symmetric it will be exactly the same on either side, it is true to say that by designing half of the end product and using a mirror effect to flip it to the other side, you can complete it.
To learn more about symmetry visit:
brainly.com/question/1597409?referrer=searchResults
