HEYA MATE
YOUR ANSWER IS <em><u>D.PLACE</u></em><em><u> </u></em><em><u>IT</u></em><em><u> </u></em><em><u>IN</u></em><em><u> </u></em><em><u>AN</u></em><em><u> </u></em><em><u>ELECTRI</u></em><em><u>C</u></em><em><u> </u></em><em><u>FIELD</u></em>
<em><u>BE</u></em><em><u>CAUSE</u></em><em><u> </u></em><em><u>IT </u></em><em><u>makes</u></em><em><u> sense you can use alternating current to remove magnetism</u></em>
Answer:
It's held together by the nuclear force.
Explanation:
There are <em>more</em> elemental forces than just the electromagnetic one. In this case, it is the nuclear force (called also strong force) the one that holds the nucleus together because it is stronger than the electromagnetic force over such short distances as the one inside the atomic nucleus.
Atoms, molecules, electrons, photons, protons etc.
Answer:
Option (e)
Explanation:
A = 45 cm^2 = 0.0045 m^2, d = 0.080 mm = 0.080 x 10^-3 m,
Energy density = 100 J/m
Let Q be the charge on the plates.
Energy density = 1/2 x ε0 x E^2
100 = 0.5 x 8.854 x 10^-12 x E^2
E = 4.75 x 10^6 V/m
V = E x d
V = 4.75 x 10^6 x 0.080 x 10^-3 = 380.22 V
C = ε0 A / d
C = 8.854 x 10^-12 x 45 x 10^-4 / (0.080 x 10^-3) = 4.98 x 10^-10 F
Q = C x V = 4.98 x 10^-10 x 380.22 = 1.9 x 10^-7 C
Q = 190 nC
Answer: false
Explanation: because if one car is at 2 m/s and the other at 1 m/s one would be farther away from the stating point