Answer:
5/1
Explanation:
Kinetic energy is energy from a moving object and if a pendulum is at the highest point it will go faster.
We have two equation for the mirror:
Index i denotes an image, and index 0 denotes the object.
In our case, magnification is 0.25:
We plug this back into the first equation:
Yes.
-- 'Acceleration' does NOT mean 'speeding up'.
It means ANY change in the speed OR direction of motion ...
speeding up, slowing down, or turning.
-- If an object is NOT moving in straight line at constant speed,
then its motion is accelerated.
-- In circular motion, or even just going around a curve,
the object is accelerating, because its direction is constantly
changing, even if its speed is constant.
Answer:
Explanation:
Since the centripetal force F_C is, in this case, the gravitational force F_G exerted by the planet, we can say that:
In the case of the satellite A we have:
And in the case of the satellite B:
Finally, using these two expressions, we obtain :
In words, the centripetal acceleration a_b is equal to one fourth of a_0.