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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ASAP! AWARDING BRAINLIEST see attached photo.

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Answer:d

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Answer:

I believe the answer would be B

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Sam studied kinetic and potential energy by observing apples on a tree during a field investigation. Explain what type of energy these apples have.

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Answer: Gravitational Potential Energy

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!)

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:

It is a chemical element

Explanation:

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
micro
С
ultra-violet
D
visible spectrum

Answers

Answer:

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

Explanation:

Answer:

A.) infra-red

Explanation:

Which has greater density- 1 kg of water or 10kg of water?

Answers

Answer:

I believe that it will be 10kg of water

Explanation:

Because a measure of the amount of information on a storage medium (tape or disk). For magnetic tape it is the amount of information recorded per unit length of tape (bits per inch or millimeter); for a disk, a fixed number of bits per sector, sectors per track, and tracks per disk.

The density in both the case will be equal, just the difference will be in the volume they occupy.

What is density?

In practice, density is the weight of a substance per unit volume. Water has a density of about 1 gram per milliliter, but this varies depending on temperature and whether or not substances are dissolved in it. Because ice is less dense than liquid water, it floats in your glass.

This allows many aquatic organisms to survive the winter. If ice were more dense than water, it would continue to freeze and sink until the entire lake was frozen.

Any amount of water has the same density. Whereas one gram of water has a volume of one milliliter, ten grams have a volume of ten milliliters.

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For more details regarding density, visit:

https://brainly.com/question/15164682

#SPJ2

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

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

Answers

The neck or wrist ps side of the neck

Answer:

Count your pulse for 60 seconds.  

Explanation:

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

A dog exerts a force of 30N to move a wagon 2m in 5s. What is the power of the dog?
help me

Answers

Answer:

i do not know

Explanation:

im doing for education too

Answer:

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

Explanation:

sorry bro . I want to have points eeek . :/

The box in the right diagram takes 1.1 sec to strike the floor after being released from rest. Find the landing speed of the 0.3-kg box, the tension of the rope, and moment of inertia of the pulley.

Answers

Answer:

dhrh4b

Explanation:

hours rbergrehebbeb3j3

nsiz. hs aj. he zj xuw x

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:

What happens as a bungee jumper gets closer to Earth's surface?
A. Gravity decreases
B. His mass increases
C. Air resistance decreases
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Answers

Answer:

Velocity increases

Explanation:

Gravity is constant, except when discussing "apparent weight"

Mass is constant here

Air resistance would actually increase

Velocity DOES increase, because Earth is pulling the jumper downwards with an unbalanced force. The unbalanced force creates acceleration (-9.81 m/s^2), which means his velocity is increasing constantly.

Hey guys I need help please help me what do y’all think it is I need help And I’m struggling

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................Solar
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What is the frequency of a raido wave with a wavelength of 1.0 mm?

Answers

Answer:

3×10^6

Explanation:

frequency is the speed of light ( c) which is a constant number divided the wavelength

f = 3×10^6 / 1.0

A 780 kg vehicle accelerates at 4 m/s2. How much force is the car generating?

Answers

Explanation:

Given

mass (m) = 780 kg

acceleration (a) = 4 m/s²

Force (F) = ?

We know

F = m * a

= 780 * 4

= 3120 Newton

The car is generating 3120 Newton force.

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:

the density is 5.24 grams per cubic centimeter.

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.

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:

18750 kg-m/s

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Can you brainlist

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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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= 450-250+(-600)+ 600+0+250-450

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Answers

Answer:

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Explanation:

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Answer:

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Answers

v= s/t
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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

https://brainly.com/question/33942199

briefly explain transport of oxygen by blood ​

Answers

Answer:

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Explanation:

An object in motion stays ___ at a constant ___ and in a straight line.

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A IN MOTION ACCELERATION

Answer:

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Explanation:

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Answer:

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Answer:

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Explanation:

Answer:

I think solar because the thermal and sound and light are like a part of the tv (sorry for my English)

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.

Answers

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what determines the color of light?

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Answers

answer: wave length
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Answer:

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Explanation:

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Answer:

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Explanation:

I hope that this is what you were looking for.

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