Potential difference across the entire cd player is 12 V
Answer:
(a)
(b) 29.91 A
(c) 12.24 V
Explanation:
(a) The emf of a battery is the sum of its terminal voltage and lost voltage. The lost voltage is due to the internal resistance. By this, we have for the first condition,
E is the emf, is the terminal voltage and is the lost voltage with I being the current.
Since the same current is drawn in both conditions and the emf does not depend on temperature, we have similar for the second condition
Equating both equations and solving for I, we have
(b) Substitute the values from the question into the expression for I in (a)
(c) Substitute the value of I into any of the equations of E
1. Adult
2. Mating
3. Egg-Laying
4. Death
5. Egg-hatching
6. Molting
7. Instar
8. Nymph
I think this is it.
Answer:
W = 40 J
Explanation:
The work done by a force is defined as the dot product of the force and displacement of the object. Therefore, the following formula can be used to find the work done:
where,
W = Work Done = ?
F = Force = Weight of Block = 4 N
d = distance lifted = 10 m
θ = angle between force and displacement = 0°
Therefore,
<u>W = 40 J</u>