Answer: Only Tech B is correct.
Explanation:
First, tech A is wrong.
The circuits that can be compared with links in a chain are the series circuit, and it can be related to the links in a chain because if one of the elements breaks, the current can not flow furthermore (because the elements in the circuit are connected in series) while in a parallel circuit if one of the branches breaks, the current still can flow by other branches.
Also in a parallel circuit, the sum of the currents of each path is equal to the current that comes from the source, so Tech B is correct, the total current is equal to the sum of the currents flowing in each branch of the circuit.
Your answer would be i think repetition
Answer:
4) Isaac Newton was the first scientist to propose the idea that gravity increases distance between objects decrease
Explanation:
1 - Kepler may have inspired most of Newton's propositions, but there is no record of collaborating on the theory of universal gravitation.
2 - The universal gravitation theory resemble the works of other great scientists, but Newton was indeed the first to propose this idea of gravitation
3 - On the contrary, these scientists have shared concepts, with differences in accuracy that supersede each other to be accepted by the community (i.e: Einstein being at the forefront despite sharing some ideas with Newton)
To solve this problem it is necessary to apply the concepts related to Work, Kinetic energy in springs and the conservation of Energy.
By definition work in a body is defined by
Where,
F = Force
d = Distance
On the other hand we have that
Where,
k = Spring constant
x = Displacement
Since it is an inclined plane, we can intuit that the component of the distance that allows the calculation of the work is the opposite of the angle (vertical), so
From the second equation we can calculate the displacement, then
Therefore the block come to rest when the spring has been compressed around to 11.49cm