Answer:
1) B
2) A, B, and D
Explanation:
1) The atomic number provides the number of protons and electrons, since the number of the two are the same.
2) You DO NOT know whether or not the protons are in the nucleus (they are) based on the atomic number, that's just prior knowledge.
Answer:
The answer should be C. some mass was consumed in the reaction
Answer:
(E) ε = 9.00 V, r = 1.01 Ω
Explanation:
As we know that power across the resistance is given as
now we will have
now we have
now we can use it as
similarly now 100 ohm resistance is replaced by another resistance of 200 ohm
so we will have
now we have
now we can use it as
now we have
now to find voltage of cell we will have
Answer:
A. 2.76 × 10-1 meters
Explanation:
The electrostatic force between two charges is given by:
where
k is the Coulomb's constant
q1 and q2 are the two charges
r is the distance between the charges
In this problem, we know:
So we can re-arrange the equation to find the distance between the two charges:
Which corresponds to option A, 2.76 × 10-1 meters.
Answer:
a military base with aliens simple
Explanation: