Colors of light that combine to produce white light PLEASE COMMENT WITH A B C D
1 answer:
A- additive colors
Because if colors are added it gets brighter but if colors are subtracted it makes black
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Answer:
Explanation:
Not considering any type of losses in the transformer, the input power in the primary is equal to the output power in the secondary:
So:
Where:
Solving for 
Replacing the data provided:
Answer: 250 N
Explanation:
Use equation for work
W=F*d
d=2m
W=500J
F=?
-----------------------
W=Fd
F=W/d
F=500J/2m
F=250N
It's called a star when it creates its own energy
Answer:
a= 8.74 m/s²
Explanation:
Given that
m = 21 kg
θ = 13◦
F= 210 N
g= 9.8 m/s²
The force due to gravity
F₁= m g sinθ
F₁=12 x 9.8 x sin 13◦
F₁=26.45 N
Lets take acceleration is a m/s²
Form Newtons second law
F - F₁ = m a
210 - 26.45 = 21 x a
a= 8.74 m/s²
