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laiz [17]
3 years ago
10

How to light prodeced by nature

Physics
1 answer:
frutty [35]3 years ago
4 0
Natural sources of light include our sun and other stars, where the source of energy is nuclear energy (recall that the moon does not produce light but merely reflects sunlight), lightning, where the source is electrical, and fire, where the energy source is chemical.
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What is one advantage of using a computer over a graphing calculator?
Dahasolnce [82]
A computer can show you how it is done and how they got to that solution while a graphing calculator can only show you the solution. 
4 0
3 years ago
Read 2 more answers
50 Points please Help
Leya [2.2K]

Answer:

Temperature -SI unit :Kelvin

Explanation:

Kelvin is the SI unit of Temperature .

  • Don't get confused and write Celsius as the SI unit .Celsius is not the SI unit .

\\ \sf\longmapsto 1K=273°C

Or

\\ \sf\longmapsto 1°C=273.16K

Lets take an example :-

  • Take 27°C

Lets convert to Kelvin scale

\\ \sf\longmapsto 27°C

\\ \sf\longmapsto 27+273

\\ \sf\longmapsto 300K

  • SI unit of Mass=kilogram(Kg)
  • SI unit of Time=second(s)
  • SI unit of electric current=Ampere(A)
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3 years ago
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Determine the amount of potential energy of a 5 newton book that is moved to three different shelves on a bookcase. The height o
BigorU [14]
Gravitational Potential Energy = weight x height

for 1 meter:

GPE = 5 x 1
 = <u>5N</u>

for 1.5 metres:

GPE = 5 x 1.5
 = <u>7.5N</u>

for 2 metres:

GPE = 5 x 2
 = <u>10N</u>
5 0
4 years ago
A flat loop of wire consisting of a single turn of cross-sectional area 7.80 cm2 is perpendicular to a magnetic field that incre
mihalych1998 [28]

Answer:

Explanation:

Area of crossection, A = 7.80 cm²

Initial magnetic field, B = 0.5 T

Final magnetic field, B' = 3.3 T

Time, t = 1 s

resistance of the coil, R = 1.2 ohm

The induced emf is given by

e=\frac{d\phi}{dt}=A\frac{B' - B}{t}

where, Ф is the rate of change of magnetic flux.

e = 7.80 x 10^-4 x (3.3 - 0.5) / 1

e = 2.184 mV

i = e/R

i = 2.184/1.2

i = 1.82 mA

4 0
3 years ago
For the different values given for the radius of curvature RRR and speed vvv, rank the magnitude of the force of the roller-coas
nirvana33 [79]

Explanation:

The force of the roller-coaster track on the cart at the bottom is given by :

F=\dfrac{mv^2}{R}, m is mass of roller coaster

Case 1.

R = 60 m v = 16 m/s

F=\dfrac{(16)^2m}{60}=4.26m\ N

Case 2.

R = 15 m v = 8 m/s

F=\dfrac{(8)^2m}{15}=4.26m\ N

Case 3.

R = 30 m v = 4 m/s

F=\dfrac{(4)^2m}{30}=0.54m\ N

Case 4.

R = 45 m v = 4 m/s

F=\dfrac{(4)^2m}{45}=0.36m\ N

Case 5.

R = 30 m v = 16 m/s

F=\dfrac{(16)^2m}{30}=8.54m\ N

Case 6.

R = 15 m v =12 m/s

F=\dfrac{(12)^2m}{15}=9.6m\ N

Ranking from largest to smallest is given by :

F>E>A=B>C>D

5 0
3 years ago
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