Answer:
B) electrons transferred from sphere to rod.
(2) 1.248 x 10¹¹ electrons were transferred
Explanation:
Given;
initial charge on the plastic rod, q₁ = 15nC
final charge on the plastic rod, q₂ = - 5nC
let the charge acquired by the plastic rod = q
q + 15nC = -5nC
q = -5nC - 15nC
q = -20 nC
Thus, the plastic rod acquired excess negative charge from the metal sphere.
Hence, electrons transferred from sphere to rod
B) electrons transferred from sphere to rod.
2) How many charged particles were transferred?
1.602 x 10⁻¹⁹ C = 1 electron
20 x 10⁻⁹ C = ?
= 1.248 x 10¹¹ electrons
Thus,1.248 x 10¹¹ electrons were transferred
Answer: Fusion, vaporization, and sublimation are endothermic processes, whereas freezing ... Changes of state are examples of phase changes, or phase … ... liquid to gas, or solid to gas) requires an input of energy; it is endothermic. ... rate: A–B: heating solid ice; B–C: melting ice; C–D: heating liquid water; D–E: ...
Explanation:
Answer:
Trees grow everywhere, so we always have some
Explanation:
Wood is a renewable resource; trees can be replanted and grown to maturity in place of those that are cut down. As long as the trees are replanted at the same rate as they are cut down wood will be a renewable resource.
Answer:
We cannot see anything in a completely dark room as there is no light present in the darkroom. (a) After switching on an electric bulb in the dark room as a light source, we can see it as it emits light that reaches our eyes directly.
Explanation: