Answer:
v = 1.6 m/s
Explanation:
Given that,
Distance, d = 72 m
Time taken, t = 45 s
We need to find their average velocity. Average velocity of an object is given by total distance divided by total time taken.
So, their average velocity is 1.6 m/s.
Well they live in dry areas bc there jumps hole water
The current flowing in the circuit can be found by applying Ohm's law:
where
V is the voltage of the battery
I is the current flowing in the circuit
R is the resistance of the circuit
In our problem, V=12 V and
, so if we re-arrange the previous equation and we use these data, we find the current in the circuit:
Therefore the correct answer is C).
Work Done = Force x distance
Since she exerted a horizontal force of 20N over a distance of 5m, the work done is 20N x 5m which is equals to 100 joules
I think the correct answer from the choices listed above is the first option. It is the magnetic fields present that causes the compass to move. <span>A compass reacts with the Earth's magnetic field, however, if another piece of metal is near of the needle magnet's magnetic field the needle will deflect toward the metal.</span>