Answer: A. The reactants have higher potential energy, and energy is released.
Explanation:
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Normal Force = 54 N
acceleration = 1.2 m/s^2
For Normal Force:
According to the force diagram, we can come up with the equation (all up and down forces):
10 sin 30 + Normal Force - 58.8 = 0
Normal Force = 53.8 N = 54 N
For acceleration:
According to the force diagram, we can come up with the equation (all left and right forces):
10 cos 30 - 1.5 = (6.0) (Acceleration)
Acceleration = 1.19 m/s^2 = 1.2 m/s^2
The strength of the electromagnet depends directly on the
current (amps) in the wire that the coil is made out of.
That current is going to be determined by the voltage of the
battery or power supply that powers the magnet, and by the
resistance of the wire. So yes, the properties of the wire do
have a direct effect on the strength of the magnet. If you
tried to make an electromagnet with a coil of wet spaghetti,
it would work, but you would need a humongous power supply
to get any significant strength out of the magnet.
Answer:
3.54
Explanation:
some nerd thing I found it on Yahoo answers
