Answer:
E =
Explanation:
electric field magnitude, E is the intensity of electric force, F per charge, q applied.
thus, E = force per charge = F/q
there are two charges mention in the question. the charge -q placed on top of the plate is the source charge, while the charge, +q place at the bottom plate is the test charge. two charges is needed for an electric force to occur but for electric field calculation, the test charge, +q is used.
the application of coulomb law is used to determined electric force,
F=[ A *(+q)*(-q)]/d²
where,
A is the coulomb law constant = 9.0 x 10⁹ Nm²/C²
+q = test charge on bottom plate
-q = source charge
d = distance of separation between the top and bottom charge
applying the above equation in E
E = [ A *(+q)*(-q)]/d² DIVIDE q
E = [A(-q)]/d²
E =
Answer:
Deep ocean trenches
Explanation:
Subduction zones are Earth's lithosphere (the crust and as well as the upper non-convecting part of the upper mantle) gravitational collapsing sites. Along convergent plate boundaries, subduction zones exist where one sheet of oceanic lithosphere merges with any other layer. So, in order to find depth of water in the sea, we can find these subduction zones. The best places are a deep ocean- trench like the Mariana Trench in the pacific ocean.
Answer:
1) ironing a shirt 2) writing on surfaces 3) working of an eraser
The amount of heat needed to increase the temperature of a 1-kilogram substance by 1°C is known as the specific heat of the substance.
the formula for specific heat of a substance is given as
c = Q/(m ΔT)
where Q = Heat required to change the temperature by 1°C
m = mass of the substance
ΔT = change in temperature.
the units of specific heat is given as Joules/(kilogram °C)
