Answer:
The answer is B
Explanation:
The line spectrum shows distinct light different energies and wavelengths
The planets revolving around the sun, The moon revolving around the Earth.
Answer:
First of all the formula is F= uR,( force= static friction× reaction)
mass= 5+25=30
F= 50
R= mg(30×10)=300
u= ?
F=UR
u= F/R
u= 50/300=0.17N
Answer:-6800J
Explanation: 8.0m x 850N = 6800
Rewritten as a negative when brake/stop -6800
In a series circuit the total current is the same throughout resistors and so:

The voltage is distributed throughout the resistors and so:

and the total resistance can be calculated by adding up the resistors resistance:

First thing is to calculate the total resistance and so:

And by Omh's law V=IR we have:

And so the total current of the circuit is 1.2 amps i.e. 1.2 A.