Answer:
A. Capitalist economy
Explanation:
The United States is a capitalist economy. Hope this helps, thank you !!
The total number of lamps is mathematically given as
N=24
<h3>What is the t
otal number of
lamps?</h3>
Question Parameters:
How many 60-watt lamps could be connected in parallel on a 15-amp, 120-volt
Generally, the equation for the Power is mathematically given as
P=IV
Therefore
I=P/v
I=60/120
I=0.5A
Since the system does not exceed 80% of the rating
NI=I'(0.8)
N=15*0.8/0.5
N=24
In conclusion, the total number of lamps is
N=24
Read more about Arithmetic
brainly.com/question/22568180
Answer:
Explanation:
Electrical potential energy will be converted into kinetic energy .
Electrical potential energy when distance was 15 m .
E₁ = 9 x 10⁹ x - q² /d where q is magnitude of charge on electron or positron
E₁ = 9 x 10⁹ x - ( 1.6 x 10⁻¹⁹ )² /15
= - 1.536 x 10⁻²⁹ J .
Electrical potential energy when distance was 2 m .
E₁ =9 x 10⁹ x - q² /d where q is magnitude of charge on electron or positron
E₁ = 9 x 10⁹ x - ( 1.6 x 10⁻¹⁹ )² /2
= -11.52 x 10⁻²⁹ J .
Decrease in energy = (11.52 - 1.536 ) x 10⁻²⁹
= 9.984 x 10⁻²⁹ J .
This energy will be converted into kinetic energy and they will be distributed equally in each .
Energy of each = 9.984 x 10⁻²⁹ /2
= 4.992 x 10⁻²⁹ J .
1/2 m v² = 4.992 x 10⁻²⁹ , m is mass of electron
.5 x 9.1 x 10⁻³¹ v² = 4.992 x 10⁻²⁹
v² = 109.71
v = 10.47 m/s .
Answer:
Absorption Spectrum
Explanation:
The hot, dense source emits high energy photons of all wavelengths. Some of these photons are absorbed by electrons of cloud to excite them to a higher energy level which appear as dark lines in the spectra and we get Absorption Spectrum.