equal in magnitude and equal in direction
B.
equal in magnitude and opposite in direction
C.
opposite in magnitude and equal in direction
D.
opposite in magnitude and opposite in direction
the answer of the question is A
1 and 2 only
4 only
1, 2, and 4
If Linh removes bulb 3,the bulbs which will remain lit are 1, 2 and 4.
The electric circuit provided with battery creating potential difference across resistance or capacitor or inductors.
When Linh removes the middle branch, the bulbs 1, 2 and 4 will be acting as resistor which are in series connection. The current flow will be same in all the resistors except 3.
Thus, If Linh removes bulb 3, the bulbs which will remain lit are 1, 2 and 4.
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Answer:
1, 2, 4
Explanation:
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Answer:
The solar cells transfer light energy to thermal energy.
When the battery is being charged up, chemical energy is transferred to electrical energy.
The motor is designed to transfer potential energy to kinetic energy.
Answer:
The net force is zero, so the acceleration is zero
Explanation:
Newton's second law states that the acceleration of an object is proportional to the net force applied to it, according to the equation:
(1)
where
is the net force on the object
m is the mass of the object
a is its acceleration
In this problem, we have a sled acted upon two forces, . So the net force on the sled is
(2)
however, we are told that the two forces are equal in magnitude but in opposite directions, so
So, eq.(2) becomes
and so eq.(1) becomes
which means
so the acceleration of the sled is zero, and if the sled was at rest, it will not move.