The rule for the sequence is: You add 4/6 each time
5/6 +4/6 = 1 1/2
1 1/2 + 4/6 = 2 1/6
2 1/6 +4/6 = 2 5/6
J.J. Thomson's experiments provided evidence that an atom B.contains negatively charged particles.
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Explanation:
The Simple Pendulum. A simple pendulum is defined to have a point mass, also known as the pendulum bob, which is suspended from a string of length L with negligible mass ((Figure)). Here, the only forces acting on the bob are the force of gravity (i.e., the weight of the bob) and tension from the string.
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Answer:
a) - 7.40 * 10^6 Nm^2/C^2
b) More lines enter than leave the surface
Explanation:
a)
As per the Gauss Law
ε * Intg E.dS = q
E.dS = flux over the whole hull of the submarine
ε = permittivity of vacuum
flux = Σ (charges)/permittivity of vacuum = ( 6.95 + -9 + 27 + -90.5 )*10^-6/8.85 x 10^-12 =
= -0.00006555
/(8.85 x 10^-12)
= - 7.40 * 10^6 Nm^2/C^2
b)
The net electric flux is negative, more lines enter than leave the surface.
Answer: 4.17 m
Explanation: According to the law of conservation of energy, the elastic potential energy of the elastic material is used in launching the mass hence giving the body it potential energy.
Elastic potential energy = kx²/2
Potential energy = mgh
Where m = mass of object = 0.24kg
g = acceleration due to gravity = 9.8 m/s²
h = height =?
k = spring constant = 850 N/m
x = compression = 31cm = 0.13m
kx²/2 = mgh
kx² = 2× mgh
850 ×(0.31)² = 2 × 9.8 × h
h = 850 × (0.31)²/ 2 × 9.8
h = 81.685 / 19.6
h = 4.17 m