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SOVA2 [1]
2 years ago
8

Help please? I don’t know this

Physics
1 answer:
ohaa [14]2 years ago
4 0

Answer:

Gas giants rotate faster than those of earth .

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A sonar emits a sound signal of frequency 40000Hz, towards the bottom of the sea.
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Answer:

0.000025s

Explanation:

Period it’s. : T(s)= 1/f(Hz)=1/40000Hz=0.000025s

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Which of the advantages to social media as a new media could also be viewed as a disadvantage
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Fast Communication, can be used for good and can be used for bad hackers.
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3 years ago
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A battery with an emf of 24.0 V is connected to a resistive load. If the terminal voltage of the battery is 16.1 V and the curre
lions [1.4K]

Answer:

2.03 Ω

Explanation:

EMF: This can be defined as the potential difference of a cell when it is not delivering any current. The S.I unit of Emf is Volt.

The formula of emf is given as,

E = I(R+r)............................ Equation 1

Where E = Emf, I = current, R = External resistance, r = internal resistance.

Make r the subject of the equation

r = (E-IR)/I........................ Equation 2

Note: From ohm's law, V = IR.

r = (E-V)/I........................ Equation 3

Where V = Terminal voltage

Given: E = 24 V, I = 3.9 A, V = 16.1 V.

Substitute into equation 3

r = (24-16.1)/3.9

r = 7.9/3.9

r = 2.03 Ω

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3 years ago
Wilbur ran 1-kilometer. Then he ran 500 meters. How many meters did Wilbur run all together?
Blababa [14]
The answer is B 1,500 meters since 1 kilometer to meters is 1,000 and u add the 500
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The electric current leaves the battery through the --- complete this blank
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The bulb

Hope this helps!
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