Answer:
-4.769x
Explanation:
In order to develop the problem it is necessary to bring up the concepts related to Eyepiece or Focal Length of an ocular lens, i. e, the distance from the principal plane of the eyepiece where parallel rays of light converges to a single point. The equation is given by,
Where,
N= Near point
Magnification
Focal length
By replacing the values we can obtain that:
It is then possible to find the magnification of the telescope with the previous data found through
Answer:
-11776.36 N
This force is attractive since both charges are of opposite sign
Explanation:
Given that
Distance between the spheres = 2.73 cm =0.0273 m
where K is Coulomb's constant =
According to coulombs law we know that force between two charges is given by
This force is attractive since both charges are of opposite sign
Properly input current above 40 voltage or 100 for example elecrical fan machine is used to perform a task, work output is always more than work
Answer:
v = 0.363 m/s
Explanation:
Given that,
The table is 0.55m tall and the tennis ball lands 0.12m away from the table.
Here, u = 0 (at rest) for initial vertical velocity as it rolls off the edge of a table.
Let t is the time to fall from the vertical height. So,
It can be assumed to find the initial horizontal velocity of the tennis ball. It can be given by :
Hence, the initial horizontal velocity is 0.363 m/s.
The moon is moving away from Earth at a rate of approximately 3.78 cm per year.
This migration of the Moon from the Earth is mainly due to the action of the Earth tides. It can be explained as follows:
- the Moon exerts a gravitational force on the Earth, which is stronger at the Equator (since the Equator is closer to the Moon), creating the tides
- However, the Earth rotates faster on its axis (one rotation every 24 hours) than the Moon (one rotation every 27 days), therefore the tidal bulge on Earth tries to pull the Moon "ahead" in its orbit. As a result, the Moon tends to sped up.
<span>- As opposite reaction, the Earth tends to slow down in its rotation, with a loss of angular momentum. Since the angular momentum must be conserved, the radius of the orbit of the Moon becomes larger, and this explains why the Moon is moving away from the Earth.</span>