Physics High School

The current in the wires of a circuit is 60.0 milliAmps. If the
voltage impressed across the ends of the circuit were
doubled and the resistance were tripled, then its new current
would be ___ milliAmps.

The Current In The Wires Of A Circuit Is 60.0 MilliAmps. If Thevoltage Impressed Across The Ends Of The

Answers

Answer 1

Answer:

I' = 40 mA

Explanation:

Given that,

The current in the wires of a circuit is 60.0 mA.

If the  voltage impressed across the ends of the circuit were  doubled and the resistance were tripled such that,

V' = 2V and R'=3R

The relation between current, voltage and resistance is given by :

V = IR

Let I' be the new current. So,

V'=I'R'

⇒ [tex]I'=\dfrac{V'}{R'}\\\\I'=\dfrac{2V}{3R}\\\\I'=\dfrac{2}{3}\times \dfrac{V}{R}\\\\I'=\dfrac{2}{3}\times I\\\\I'=\dfrac{2}{3}\times 60\\\\I'=40\ mA[/tex]

So, the new current would be 40 mA.

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What is the most accurate way to check your heart rate (bpm)? Help me?

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The neck or wrist ps side of the neck

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Count your pulse for 60 seconds.  

Explanation:

This isn't physics, this quesiton should be marked in health.

Your student desk has been in the room for many hours, it is at thermal equilibrium with the room?
Which part of your desk is colder: the wood or the metal? Why?

Answers

Answer:

metal because A: In general, metals feel colder or hotter to the touch than other materials at the same temperature because they're good thermal conductors. This means they easily transfer heat to colder objects or absorb heat from warmer objects. Thermal insulators like plastic and wood don't transfer heat as easily.

Explanation:

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Answer:

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Answer:

the first questions answer is- the pressure is the same (balanced) outside and inside the window.

the second questions answer is- the atmospheric pressure increases.

Explanation:

I hope that this is what you were looking for.

What type of element is hydrogen?

Answers

Answer:

Hydrogen (H), a colourless, odourless, tasteless, flammable gaseous substance that is the simplest member of the family of chemical elements.

Explanation:

Answer:

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What is the momentum of a 750 kg car traveling at a velocity of 25 m/s north?

Answers

Answer:

18750 kg-m/s

Explanation:

Momentum = mass x velocity 

Answer:

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Can you brainlist

A rubber rod with a negative 4.0 C (-4.0 x 10-6 C) charge is 10 cm east of a pith ball with a positive charge of 5.0 C. A plastic rod with a positive 2.0 C charge is 5.0 cm north of the pith ball.

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552. cm eastthat's the answer

what determines the color of light?

1. wavelength
2. wave height
3. wave speed
4. wave amplitude

Answers

answer: wave length
(Please Mark brainly or like I’m trying to get points lol!)

Answer:

wave length

Explanation:

Your personal hygiene is more important to avoid you becoming ill, more so than spreading germs.
True
False

Answers

I think it’s False, because spreading germs can impact and spread way easier than having a good hygiene ( but still wash your hand!)

Which magnets need electric current for magnetism?
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Answers

Probably temporary magnets, but I’m. It sure

Temporary magnets require electric current to produce magnetism and magnetic field lines B) Temporary magnets

In electromagnets, their magnetism is dependent on electricity  with an iron core in the center. If we add an iron core to a solenoid, we can increase its magnetic field strength . When we connect  a battery to a solenoid and wrap the sanded copper wire around a nail, a magnetic field is created. This force is generated by the magnetic field that's  created when current flows through the coil.

As long as there is a direct current running  through the coil, the nail will retain its magnetic properties. However, once the current stops, the magnetism of the nail is lost .  Creating electromagnets can be achieved by winding wire around the iron core.

The advantages of electromagnets are :

Electromagnets can be turned on and off magnetic Fields can be increased and decreased Electromagnets can be cheap compared to permanent magnets. The same cannot be said for a permanent magnet.

To learn more about Magnets

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briefly explain transport of oxygen by blood ​

Answers

Answer:

Once oxygen has entered the blood from the lungs, it is taken up by haemoglobin (Hb) in the red blood cells. ... Each molecule of haemoglobin can hold four oxygen molecules. It is haemoglobin that carries the oxygen as it is transported around the body in the blood.

Explanation:

what is reflection of light ? Which type of surface is required for a regular reflection​

Answers

Answer:

MIRROR

Explanation:

Answer:

reflection of light is the bouncing back of light rats when it falls on a smooth surface or polish surface.

Which type of electromagnetic waves should the scientists' cameras use in order to safely capture images of the sea turtles at night?
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infra-red
B
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С
ultra-violet
D
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Answers

Answer:

D :} if not that is A  that what my thing say where correct

Explanation:

Answer:

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Explanation:

What special component would you need to use in a thermostat so that it can respond to changes in temperature

Answers

Answer:

A thermistor is an electrical device, a thermally sensitive semiconductor resistor, whose resistance changes in response to temperature. Thermistors are made in a variety of ways including thin films (SiC).

Explanation:

hope it helps

hehe i hate being a single girl....what physical properties dose europium have

Answers

Answer:

Europium has a bright shiny surface. it's steel grey and has a melting point of 826 degree Celsius and a boiling point of about 1,489 degree Celsius.

Explanation:

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Answers

Answer:

0N.

Explanation:

Net force is the sum total of forces acting on an object.

The Fn which is the net force is

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photo attached: please help!!!

Answers

Answer:

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Explanation:

The higher the center of mass the more likely things are to topple over but the lower it is the more likely to stay put when all 4 wheels are down .

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Answers

Answer:

3×10^6

Explanation:

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What must be your average speed in order to travel 350 km in 5.15 h? *
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Answers

v= s/t
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Answers

Answer:

Velocity increases

Explanation:

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ASAP! AWARDING BRAINLIEST see attached photo.

Answers

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Explanation:

Answer:

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Answers

Answer:

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Explanation:

Answer:

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Answers

Explanation:

Given

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We know

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Hope it helps :)

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Answers

A IN MOTION ACCELERATION

Answer:

Answer is A

Explanation:

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Answers

Answer:

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Answers

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Answer:

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I don't know too . want to help but I don't know how .

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Answers

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Answers

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Explanation:

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