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kolezko [41]
3 years ago
15

Witch device uses AC current to operate

Physics
1 answer:
ololo11 [35]3 years ago
7 0

Answer:

Depending on the locomotive, it can use steam, batteries or a diesel engine.  

A car uses a DC battery to start it and an internal combustion engine to run it (unless it is an electric car, then it uses DC batteries.  

A portable media player can use either a/c or a battery.  

A flashlight uses DC batteries.

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What causes a snowflake to melt on your tongue?​
Elodia [21]

Answer:

thermal energy

Explanation:

heat transfers into it causing it to physically change

7 0
3 years ago
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What kind of research in teaching of physical science can be done???​
11Alexandr11 [23.1K]

Answer:

Physical sciences are those academic disciplines that aim to uncover the underlying laws of nature - often written in the language of mathematics. It is a collective term for areas of study including astronomy, chemistry, materials science and physics.

Explanation:

3 0
3 years ago
The terminals of a battery are connected across two resistors in series. The resistances of the resistors are not the same. Whic
Vesna [10]

Answer:

(c) The current in each resistor is the same.

Explanation:

When two resistors are connected in series, we have the following:

- The resistors are connected such that the current passing through the two resistors is the same

- The voltage of the battery is equal to the sum of the voltage drops across each resistor

- the equivalent resistance of the circuit is equal to the sum of the individual resistances:

R = R1 + R2

So, let's analyze each statement:

(a) The resistor with the smaller resistance carries more current than the other resistor. --> FALSE. The current through the two resistors is the same.

(b) The resistor with the larger resistance carries less current than the other resistor. --> FALSE. The current through the two resistors is the same.

(c) The current in each resistor is the same. --> TRUE.

(d) The potential difference across each resistor is the same. --> FALSE: the potential difference across each resistor is given by

V=RI

where I (the current) is the same for both resistors, while R (the resistance) is not, so V is also different for the two resistors.

(e) The potential difference is greatest across the resistor closest to the positive terminal --> FALSE. According to

V=RI

the potential difference depends only on the value of the resistance, so it doesn't matter which resistor is connected to the positive terminal.

4 0
3 years ago
Please help!! This is a final and I need a good grade
Ket [755]
Diagram 4 is the correct answer.


6 0
3 years ago
You apply a very small force, say 0.001 newtons, to a very large truck, with a mass of 2000 kilograms. What can you say for sure
Fofino [41]

Answer:

it will stay still. unless its in space.

Explanation:

5 0
3 years ago
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