I think it is kinetic friction not the best at physics
Answer:
Questions involving accelerating objects, including those in free fall, can be solved using three equations
y = 1/2at2 + v0t + y0
v = v0 + at
vf2 = v02 + 2 a (y - y0)
In this case, only the first equation is needed.
Since the object is falling the final height is 0 meters, the initial height is 370 m, and the acceleration is -9.8ms-2
Since the object is dropped, the initial velocity is 0.
0 = 1/2(-9.8)t2 + 370. t = sqrt(370/4.9) = 8.69 s
Explanation:
Charge must pass by a point in a wire is 5 Coulomb
Given:
time = 10 s = t
current = 0.50 A = I
To Find:
charge = q
Solution: Current is defined as amount of charge passing through a region per unit time. It is given by the formula
I = q/t
q = I x t = 0.50 A x 10 s = 5 Coulomb
Hence, charge must pass by a point in a wire is 5 Coulomb
Learn more about Charge here:
brainly.com/question/25922783
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Explanation:
Kirchhoffs Voltage Rule, or KVL, explains that "the overall voltage throughout the circuit in any closed loop network is equal to the sum of all voltage decreases inside the same loop" which is equivalent to zero. In other words, the mathematical sum of all within the loop voltages must be equal to zero.
The number of protons and the number of electrons are always the same in an element that is neutral and has no charge. Therefore, this element has 14 electrons.
