Answer:
Science and technology have had a major impact on society, and their impact is growing. By drastically changing our means of communication, the way we work, our housing, clothes, even the length, and quality of life itself, science has generated changes in the moral values and basic philosophies of mankind.
Explanation:
Answer:
Option C
Explanation:
v= u + at
20 = 5 + a(5)
15= a(5)
a= 3 m/s²
Force = mass × acceleration
= 10 × 3
= 30 N
The speed of the wave is mathematically given as
v=2266.66m/s
A long wave with a period of about 15 minutes will travel across the oceans at a speed of approximately v=2266.66m/s
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Speed of the wave</h3>
Question Parameters:
A long wave with a period of about 15 minutes
Generally the equation for the Wave velocity is mathematically given as
v=\lambda * frequency
Where
f=1/t
Therefore
v=\lambda * frequency
v=\lambda * 1/t
Therefore, with wavelenght of the ocean as 34km
v=34*1000*1/15
v=2266.66m/s
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Answer:
The object would weight 63 N on the Earth surface
Explanation:
We can use the general expression for the gravitational force between two objects to solve this problem, considering that in both cases, the mass of the Earth is the same. Notice as well that we know the gravitational force (weight) of the object at 3200 km from the Earth surface, which is (3200 + 6400 = 9600 km) from the center of the Earth:
Now, if the body is on the surface of the Earth, its weight (w) would be:
Now we can divide term by term the two equations above, to cancel out common factors and end up with a simple proportion:
