Answer:
Explanation:
To solve this problem we need to apply Kepler's third law.
Kepler's third law tells us that
Where
T= 320Days ( Period)
r = radius
G = Gravitational constant
M = Mass of the object, sun in this case
Then,
We need to re-arrange for R, so
Replacing
Therefore the radius of the star is
solutions:
-50kg
-32kg
-2kg
its 50 kg because as a result of being more heavy the force that is applied to him don't makes hi go as fast as the other one
Yes because the fly would be going faster because of the wind
Answer:i think they do i dont understand your question it does not make sence
Explanation:
Answer: B
Explanation:
Newton's first law it's law of inertia.
An object at rest will remain at rest (or an object in motion in a straight line at a constant velocity will remain that way) unless it is acted by an unbalanced force.
In A for the ball to slow down and stop, an external force (like friction with air or the floor) needs to be taken in consideration.
In B we can see how we need to make a force on the wagon to make it move.
In C we have an other Newton 's law, force equals mass times acceleration (2nd law)
In D we can see how it does not move because the forces on the box are balanced.