Answer:
c
Explanation:
Since he shells of scallops make them denser than water, they normally rest on the ocean floor, which means there is a force needed to overcome the gravitational pull, which pullls them towards the ocean flootr. To hover in the water they must use their yet propulsion to push upwards ( otherwise they sink to the floor again).
To be able to create an upward force, the yet propulsion needs to eject water downwards. Every action has the same and opposite reaction (Third law of Newton).
Answer: 1.57
Explanation:
This described situation is known as Refraction, a phenomenon in which light bends or changes its direction when passing through a medium with a index of refraction different from the other medium.
In this context, the index of refraction is a number that describes how fast light propagates through a medium or material.
According to Snell’s Law:
(1)
Where:
is the first medium index of refraction (the value we want to know)
is the second medium index of refraction (air)
is the angle of incidence
is the angle of refraction
Now, let's find from (1):
(2)
Substituting the known values:
Finally:
The total charge transferred is
. This total charge consists of N electrons, each one with charge
. To find N, the number of electrons transferred, we must simply divide the total charge by the charge of a single electron:
- Mass of the truck (m) = 30000 Kg
- Velocity (v) = 25 m/s
- Let the momentum be p.
- We know, momentum = mass × velocity
- Therefore, the momentum of the truck (p)
- = mv
- = (30000 × 25) Kg m/s
- = 750000 Kg m/s
<u>Answer</u><u>:</u>
<u>The </u><u>momentum</u><u> </u><u>of </u><u>the </u><u>truck </u><u>is </u><u>7</u><u>5</u><u>0</u><u>0</u><u>0</u><u>0</u><u> </u><u>Kg </u><u>m/</u><u>s.</u>
Hope you could understand.
If you have any query, feel free to ask.
Answer with Explanation:
Kailangan nating sumunod sa batas dahil<em> ito'y para sa ating kapakanan at kaligtasan.</em> Ginawa ang batas <em>upang maging mapayapa ang ating pamayanan</em> kaya tungkulin nating sundin ito. Pinipigilan ng batas na abusuhin ang ating mga karapatan. Sinisiguro nito na <em>ligtas tayong maninirahan nang walang takot</em> at <em>patuloy nating itataguyod ang ating buhay nang walang inaapakang tao.</em> Dahil dito, nararapat lang na kilalanin ng tao ang batas at taos-pusong sundin ito.