2 years ago

3. Which of the following objects can be used to complete this broken electric circuit and make the light bulb glow?

Physics

1 answer:

Triss [41]2 years ago

5 0

Answer:

answer is iron rod bcoz its a conductor.

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A machine runs for 50 seconds with a steady power output of 100 watts. How many joules of work does the

liberstina [14]

Answer:

The answer to your question is when time = 50 s, work = 5000 J

when time = 90 s, work = 9000 J

Explanation:

Data

time = 50 s or 90 s

Power = 100 watts

Power is defined as the rate of work done per unit of time.

Power = Work / time

-Solve for Work

Work = Power x time

-Substitution

Work = 100 x 50

-Result

Work = 5000

2.-When time = 90 s

Work = 100 x 90

-Result

Work = 9000 watts

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2 years ago

In what do electromagnetic waves cause disturbances when they transfer

IrinaVladis [17]

Both electric and magnetic fields

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3 years ago

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According to the table what was the hikers total displacement the graph has 4km 6km 4km 6km

Xelga [282]

Answer:

Explanation:

0 is the answer

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2 years ago

What happens to a theory as new evidence is found?

algol13

New evidence may support the theory -> then nothing

New evidence conflicts with the theory => rework theory / create a new one

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3 years ago

An organ pipe is made to play a low note at 27.5 Hz, the same as the lowest note on a piano. Assuming a sound speed of 343 m/s,

timama [110]

Answer:

The length of open-open pipe needed is 6.23 m

The length of open-close pipe needed is 3.11 m

Explanation:

Fundamental frequency for standing wave mode of an open- open pipe is given by

$f=\frac{v}{2L}$

where v is the velocity and L is the length

The length of open-open pipe needed is

$L=\frac{v}{2f} \\L=\frac{343}{2\times 27.5} \\L=6.23 m$

Fundamental frequency for standing wave mode of an open- close pipe is given by

$f=\frac{v}{2L}$

The length of open-close pipe needed is

$L=\frac{v}{2f} \\L=\frac{343}{2\times 27.5} \\L=6.23 m$

7 0

3 years ago