Red, orange, yellow, green, blue, indigo, violet :)
Answer:
=
Explanation:
Given :
the distance between the two wires is = 2 cm
= 0.02 m
Current in one of the wire, I = 25 A
Now we know that, when the direction of the current is same that is in one direction , the magnetic field at the mid point in between the two wires will oppose each other.
Therefore we know that
= 
=
= 
Answer:
TIME he applied the fertilizer to each plant
Explanation:
Independent variable in an experiment is the variable that is subject to change or manipulation by the experimenter. In this experiment, Bob wanted to investigate the effects of plant fertilizer. Bob sets up the experiment by applying the fertilizer to each plant at DIFFERENT TIMES i.e. plant 1-every morning, plant 2-once a week, plant 3-never.
Based on this, it is obvious that the independent or manipulated variable is the TIME at which he applied the fertilizer. On the other hand, the dependent or measured variable is the height of the plants.
Answer:
(A) We are using them faster than they are replenished by nature
Answer:
The new resistance comes out to be = 4 times of original resistance .