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Hunter-Best [27]
4 years ago
11

A student is building a simple circuit with a battery, light bulb, and copper wires. When she connects the wires to the battery

terminals, the light bulb does not light up. Which of the following could explain why the bulb does not light?
A. The is no energy source.

B. The circuit is open.

C. This circuit is too simple to light up a light bulb.

D. Copper wires do not conduct electric current.
Physics
2 answers:
denis23 [38]4 years ago
5 0
It’s will be B because the circuit had a open or close so if that doesn’t work than it’s because it’s open
tensa zangetsu [6.8K]4 years ago
5 0
The answer would probably be B
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Detailed measurements of the disk and central bulge region of our galaxy suggest our milky way is a
Makovka662 [10]

Answer:

barred spiral galaxy

Explanation:

There exist various forms of galaxies which include barred spiral, spiral, irregular and elliptical galaxies.

The galaxy we live in, the milky way galaxy i structured in the form of a spiral with bars located within it hence its a barred spiral galaxy. It is composed of six parts which includes the nucleus,a disk, spiral arms, central bulge, sphere and a halo.The components interact with each other.At the center of the milky way galaxy resides a massive black-hole called Sagittarius.

3 0
4 years ago
A bus is moving at a constant speed of 40 m/s. How many hours will it takes to travel 260 miles?
lawyer [7]

Explanation:

1 mile = 1609m

Distance=260 miles= 418340 m

Speed= 40 m/s

Time = distance/speed

= 418340/40

=10458.5 seconds

= 2.9 hours

8 0
3 years ago
element x has two isotopes: x-27 and x-29. x-27 has an atomic mass of 26.975 and a relative abundance of 82.33%, and x-29 has an
meriva

Answer:

27.336

Explanation:

The atomic mass is the weighted average of the atomic masses of the isotopes.  Simply multiply each isotopes's atomic mass by its relative abundance, then sum the results.

m = 0.8233 × 26.975 + 0.1767 × 29.018

m = 27.336

4 0
3 years ago
38.4 mol of krypton is in a rigid box of volume 64 cm^3 and is initially at temperature 512.88°C. The gas then undergoes isobari
kolbaska11 [484]

Answer:

Final volumen first process V_{2} = 98,44 cm^{3}

Final Pressure second process P_{3} = 1,317 * 10^{10} Pa

Explanation:

Using the Ideal Gases Law yoy have for pressure:

P_{1} = \frac{n_{1} R T_{1} }{V_{1} }

where:

P is the pressure, in Pa

n is the nuber of moles of gas

R is the universal gas constant: 8,314 J/mol K

T is the temperature in Kelvin

V is the volumen in cubic meters

Given that the amount of material is constant in the process:

n_{1} = n_{2} = n

In an isobaric process the pressure is constant so:

P_{1} = P_{2}

\frac{n R T_{1} }{V_{1} } = \frac{n R T_{2} }{V_{2} }

\frac{T_{1} }{V_{1} } = \frac{T_{2} }{V_{2} }

V_{2} = \frac{T_{2} V_{1} }{T_{1} }

Replacing : T_{1} =786 K, T_{2} =1209 K, V_{1} = 64 cm^{3}

V_{2} = 98,44 cm^{3}

Replacing on the ideal gases formula the pressure at this piont is:

P_{2} = 3,92 * 10^{9} Pa

For Temperature the ideal gases formula is:

T = \frac{P V }{n R }

For the second process you have that T_{2} = T_{3}  So:

\frac{P_{2} V_{2} }{n R } = \frac{P_{3} V_{3} }{n R }

P_{2} V_{2}  = P_{3} V_{3}

P_{3} = \frac{P_{2} V_{2}}{V_{3}}

P_{3} = 1,317 * 10^{10} Pa

7 0
3 years ago
Which property describes the amount of energy that flows past a given area per unit of time​
shepuryov [24]

Answer:

Electric current

Explanation:

8 0
3 years ago
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