What helped provide support for the Plate Tectonic theory in the 1960s?
2 answers:
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Answer:
1 km
Explanation:
= Gap between antennas = 600 m
= Frequency = 1 MHz
= Distance to receiver = 2 km
c = Speed of light =
Wavelength is given by
Distance to be moved is given by
The distance to be moved is 1 km north.
What is newton's second law of motion?Also give example.
<u>Definition</u>:-
Newton's Second Law of motion states that the rate of change of momentum of an object is proportional to the applied unbalanced force in the direction of the force. ie., <u>F=ma</u>.
<u>Examples:-</u>
- When you are kicking a ball, you are increasing the speed by applying force to it. Therefore,it accelerates.
- If you use the same force to push a truck and push a car, the car will have more acceleration than the truck.
Derivation:-
For a body of mass 'm' , whose velocity changes from u to v in time t, when Force 'F' is applied.
=>Force∝Change in momentum/Time
=>F∝mv-mu/t
=>F∝m(v-u)/t
=>F∝ma
=>F=kma(a=v-u/t)
=>F=ma(Since k=constant=1)