Which law describes the magnetic field in a nonlinear wire?
A.
Faraday's law
B.
Gauss's law
C.
Ohm's law
D.
Ampère's law

D. Land is heated by conduction

Answer:

Land is heated through radiant energy.

Explanation:

Hope this helps!

Given that,

Distance, s = 14 m

Time, t = 2 minutes = 2*60 = 120 s

Velocity = ?

Since, we know that,

Velocity = Distance / time

V = s/t

V = 14/ 120

V= 0.11667 m/s

The average velocity of Sandra will be 0.11667 m/s

Sandra’s average velocity is 0.1166 m/s

Explanation:

Velocity is a vector quantity and it is defined as the rate of change in displacement with respect to time. So ratio of displacement to time taken for that displacement or distance covered will give the magnitude of velocity.

Average velocity is defined as the average of different velocities exhibited by the object to cover different distances in different time intervals. As here only one distance and one time interval is given, average velocity of Sandra will be equal to the magnitude of velocity of Sandra.

So as Sandra moves 14 m distance in 2 m time, the velocity is

            [tex]\text {Average velocity }=\text {Magnitude of Velocity}=\frac{\text {Distance}}{\text {Time}}[/tex]

As the time is given in the units of minute, it should be converted to seconds. So the next step will be

    [tex]\text { Average Velocity }=\frac{14 \mathrm{m}}{2 \times 60 \mathrm{s}}[/tex] = 0.1166 m/s

The de Broglie wavelength of rubidium atoms at 0.20 µK can be found using the de Broglie equation after determining the atoms' momentum, which involves calculating their velocities at the given temperature. Since the temperature is extremely low, the de Broglie wavelength will be relatively large.

The student is seeking the de Broglie wavelength of rubidium atoms cooled to 0.20 µK in an atom trap. To find the de Broglie wavelength, we must first calculate the momentum of the atoms, which can be done using the temperature and kinetic theory to find the velocity and then the momentum, assuming nonrelativistic speeds. The de Broglie wavelength (λ) is given by the equation λ = h/p, where h is Planck's constant and p is the momentum of the particle.

Without knowing the exact mass of rubidium or its velocity at this temperature, we cannot calculate the specific wavelength. However, since the temperature is very low, we can expect the wavelength to be relatively large compared to what it would be at higher temperatures due to the inversely proportional relationship between momentum and wavelength.

Given that

Velocity of missile (v) = 20 m/s ,

Angle of missile (Θ) = 53°

Determine ,   Vertical component  = v sin Θ

                                                        = 20 sin 53°

                                                        = 15.97 m/s

3700000 no problem ok

Answer:

"the force of attraction between two objects"

Explanation:

According to Newton's Universal Law of Gravitation, gravity is a force of attraction acting between objects that possess mass. The fact that we only observe gravitational attraction (as opposed to repulsion) makes gravity unique among the known forces.

Answer:

the force of attraction between two objects

Explanation:

To calculate the distance to a star, astronomers observe it from different places along Earth's orbit around the Sun. If they measure the object's position several months apart, their "two eyes" will have a separation of well over 100 million miles!

Nuclear power generates large amounts of power with limited production of greenhouse gases.

is the answer

Answer: Nuclear power generates large amounts of power with limited production of greenhouse gases.

Explanation:

Answer:

pH is a measure of the hydrogen ion concentration in an aqueous solution. Essentially, pH measures acidity and alkalinity on a scale from 0.0 to 14.0.

A gem is a stones that is used to make jewelry. A crystal is apure substance that has molecules arranged in "a regular geometric pattern". A gem can also be a crystal, whereas a crystal can not be a gem.

Hope this helps. <3

Answer:

False

Explanation:

It is false that you will stop learning new tasks and skills once you are hired for your first job. Even if you have been able to obtain a job, this does not mean you can stop learning. It is likely that your job will present new challenges, and you need to be prepared for these. Moreover, you might also change jobs in the future, and knowing how to perform a wide variety of skills would most likely help you in your future.

Explanation :  

1. Four types of traditional state of matter.

Solid state : in this state , the molecules of the matter  very close to each other that means molecules closely bound together. they are not capable to move. in solid, particles have very low kinetic energy. solid have definite shape.

Liquid state : In this state, the molecules of the matter are far away to each other. They are capable to move. in liquid , particles have more kinetic energy . liquid have  a definite volume.

Gases state : In this state, the molecules of the matter are not bound together that means the molecules are free to move . they have high kinetic energy .

gas has no definite volume and no definite shape.

Plasma state : Plasma consist of charged particle with high kinetic energy.

2. Two parts of the atomic theory of atoms.

(I). All matter is made of atom.

(II). Compounds are made by  the combination of two or more different type of atoms.

3. Element is a matter which is made by the atoms.

Example : hydrogen is made by one proton and one electron.

So, we can say that hydrogen is the element and one proton and one electron are the atoms.

4.  Scientific theory : Scientific theory is based on the real fact and logical system of science. this theory is experimentally proof.

Scientific theory is always true .

5. Plasma is the different state from the other state of matter.  Because plasma made by the group of positive and negative charge particle.

6. Plasma  : Plasma is the one state of the matter. it is consist of charged particles which have high kinetic energy .

Example : stars, lighting

the answer is 3

hope it helped

3 hits because it should take 3 strong hits to get it over the net.

I would say the answer is true

B. 24 ohms. D. Touch/hold feature

D. From negative to positive =negative charges

B. 24 ohms.

in parallel, combined resistance is less than the lowest resistance

Final answer:

The Touch/Hold feature of a DMM allows measurement reading after removing the probes. Electrons travel from negative to positive, and the total resistance of a 40 ohm and 60 ohm resistor in parallel is 24 ohms.

Explanation:

The feature of a Digital Multimeter (DMM) that allows you to connect the test probes in the circuit, remove the probes, and then read the measured value on the display is known as the Touch/Hold feature. When answering the direction electrons travel, they move from negative to positive, which corresponds to conventional current direction from positive to negative in circuit theory.

Regarding the circuit containing a 40 ohm resistor and a 60 ohm resistor connected in parallel, the total resistance value you should read with a DMM is calculated by using the formula for parallel resistance: 1/R_total = 1/R1 + 1/R2. In this case, it would be 1/R_total = 1/40 + 1/60, which gives R_total = 24 ohms after calculating the sum and inverting it.

Remark

There are 2 kinds of Beta Decay. This one is an example of a neutron becomes a proton and the emitted  particle is an electron.

[tex]_{11}^{23}\text{Na}\longrightarrow_{12}^{23}\text{Mg}+_{-1}^{ 0}\text{1e-}[/tex]

What? What is the question??

A mouse with curled whiskers migrates from one forest community to another?

Is there a question?

Your answer should be Cold Blooded Animals. Cold blooded animals don't have control over their own body temperature like humans or mammals do, most times cold blooded animals are reptiles, amphibians, etc. so they have to lay on rocks or someplace in the sunlight to warm up and have to go to water or shady areas to cool off. Hope this helps! =^-^=

A carpenter using saws and cutting tools as the tools make loud noises.

Answer:

a carpenter using saws and cutting tools

Explanation:

In noise cancelling system we know that two sounds are cancelled just by using the concept of destructive interference.

Here when two sounds which are in opposite phase are superimposed with each other then due to this superposition of waves the resultant intensity will be less than the intensity of any individual wave.

This phenomenon is known as destructive interference.

This is used to decrease the level of sound in such a part of work where we have large sound in output so here correct answer will be

a carpenter using saws and cutting tools

This is because it produce large noise while we use this cutting tools

Answer:Data collected from one seismic station can only determine the distance from the epicentre to this station, thus producing a circle with a radius of that distance. If we have two stations, there will be two circles, and these two circles will have two intercepting points (can't determine the exact location). Therefore we need to add another circle, hence another station to know the exact location of the epicentre.

Explanation:

Answer:

Its state is in uniformly accelerated motion

Explanation:

When an object is acted upon the force of gravity only, we said that the object is in free fall.

According to Newton's second law of motion:

[tex]F=ma[/tex]

where F is the net force on an object, m is its mass, a its acceleration, when the net force on an object (F) is non-zero, than the object accelerates (because a is non-zero), so the object is in accelerated motion.

In case of free fall, the rate of acceleration of the object is equal to [tex]g=9.8 m/s^2[/tex], the acceleration due to gravity, and it is constant. So, the object is moving by uniformly accelerated motion.

Answer:

D.  825 km/hr westward

Explanation:

In order to solve the problem, we should define a positive and a negative direction for the velocities.

Let's take positive (+) as westward and negative (-) as eastward.

1) Relative to the ground, the air is moving eastward at 82 km/h, so the air velocity is [tex]v'=-82 km/h[/tex]

2) Relative to the air, the airplane is moving westward at 907 km/h, so its velocity is [tex]v=+907 km/h[/tex]

In the reference system of the ground, the velocity of the airplane will be given by the velocity of the airplane in the reference system of the air (v) plus the velocity of the reference system of the air relative to the ground (v'):

[tex]V=v+v'[/tex]

Therefore, substituting:

[tex]V=907 km/h+(-82 km/h)=+825 km/h[/tex]

And the sign (+) means its direction is westward.

Ohms law: This law relates voltage difference between two points. Mathematically, the law states that V=IR;

                Where

                          V = voltage difference ; in volts

                          I = Current ; in Amperes

                          R = Resistance ; in ohms

1. Answer : given that R = 10 ; V= 12 V ;  I = ?

From ohms law,    I = V/R

                                = 12/10

                                = 1.2 Amp.

2. Answer:  given that R = 10 ; V= ? ;  I = 5

From ohms law,    V = IR

                                 = 10×5 = 50 V

3 . Answer:  given that R = ? ; V= 120 ;  I = 5

From ohms law,    R =  V/I

                                 = 120/5

                                 = 24 Ω

4 . Answer:  given that R = ? ; V= 10 ;  I = 20

From ohms law,    R =  V/I

                                 = 10/20

                                 = 0.5 Ω

5 . Answer:  given that R = 480 ; V= 24 ;  I = ?

From ohms law,  I =  V/R

                              = 24/480

                              = 0.05 A

6. Answer:  given that R = 150 ; V= ? ;  I = 1

From ohms law,  V = IR

                               = 1 × 150

                               = 150 V

mass of the bottle in each case is M = 0.250 kg

now as per given speeds we can use the formula of kinetic energy to find it

1) when speed is 2 m/s

kinetic energy is given as

[tex]K = \frac{1}{2}mv^2[/tex]

[tex]K = \frac{1}{2}(0.250)(2)^2 = 0.5 J[/tex]

2) when speed is 3 m/s

kinetic energy is given as

[tex]K = \frac{1}{2}mv^2[/tex]

[tex]K = \frac{1}{2}(0.250)(3)^2 = 1.125 J[/tex]

3) when speed is 4 m/s

kinetic energy is given as

[tex]K = \frac{1}{2}mv^2[/tex]

[tex]K = \frac{1}{2}(0.250)(4)^2 = 2 J[/tex]

4) when speed is 5 m/s

kinetic energy is given as

[tex]K = \frac{1}{2}mv^2[/tex]

[tex]K = \frac{1}{2}(0.250)(5)^2 = 3.125 J[/tex]

5) when speed is 6 m/s

kinetic energy is given as

[tex]K = \frac{1}{2}mv^2[/tex]

[tex]K = \frac{1}{2}(0.250)(6)^2 = 4.5 J[/tex]

Record your calculations in Table B of your Student Kinetic energy is the half of the product of mass and square of velocity. If the mass is given which is 0.250 kg. By putting values in the formula we will get values of the kinetic energy of different speeds. Kinetic energy depends upon the mass and velocity of the objects. When the speed of the bottle is 2 m/s, the KE is kg m2/s2. When the speed of the bottle is 3 m/s, the KE is kg m2/s2. When the speed of the bottle is 4 m/s, the KE is kg m2/s2. When the speed of the bottle is 5 m/s, the KE is kg m2/s2. When the speed of the bottle is 6 m/s, the KE is kg m2/s2.                                                                                                                                                    

MASS(kg)      SPEED(m/s)       FORMULA       KINETIC ENERGY(kgm2/s2)

0.250                   2                = ½ (0.250)(2)^2                0.5

0.250                   3                = ½ (0.250)(3)^2               1.125

0.250                   4                = ½ (0.250)(4)^2.                2

0.250                   5                = ½ (0.250)(5)^2               3.125

0.250                   6                = ½ (0.250)(6)^2                 4.5

Answer:

C

Explanation:

25% is two half lives.

Each half life requires 5730 years.

So two half lives requires  

2

×

5730

Related questions

Answer:  C) Multiply 5730 years by 2 since two half-lives have gone by for carbon.

Explanation:

Multiply 5730 years by 2 since two half-lives have gone by for carbon. 5730 years will go by and 50% will remain. When 25% is remaining, another 5730 years will have passed. Therefore, multiply 5730 years by 2.

At some speed, the drag or force of resistance will equal the gravitational pull on the object. At this point the object ceases to accelerate and continues falling at a constant speed called the terminal velocity (also called settling velocity).

Answer:

Option 2)

Burned gases will not be released into the surrounding air.

Explanation:

Given that the exhaust system on a heat engine is not functioning properly.

An exhaust system is a system which transfers  waste gases and other combustion products away from an automobile engine.

This system is the reason for  the vehicle to operate with minimal noise, smoke and pollution transmitted to the environment.

An improperly maintained exhaust system leads to the storage of burned gases inside only because the system is essential to the clean and efficient operation of the car

So option 2 is right.

Final answer:

The malfunctioning exhaust system will result in burned gases not being released into the surrounding air, interrupting the engine's ongoing cycle of operations. Option B

Explanation:

If the exhaust system on a heat engine is not functioning properly, the most accurate effect this will have on the engine is that burned gases will not be released into the surrounding air.

The exhaust system's primary function is to expel the combustion byproducts, which is crucial for making room for the fresh fuel-air mixture to enter and start the next combustion cycle.

Without this operation, the engine would not be able to sustain the series of intake, compression, combustion, and exhaust cycles that are necessary for continuous operation.

Let the initial velocity be u = 23 m/s

Let the final velocity be v.

Vehicle stops finally, therefore v = 0 m/s

Here during the braking, vehicle decelerates with constant acceleration,  thus the change in velocity is linear from initial velocity to final velocity.

for the Given condition:

Write the expression for the average speed [tex]V_{avg}[/tex]

[tex]V_{avg} =  \frac{u+v}{2}\\[/tex]

Substitute the values in the above expression.

[tex]V_{avg} = \frac{23+0}{2}\\              = 11.5 m/s[/tex]

Hence, the average speed during braking is 11.5 m/s

Answer:

B. Become a white dwarf star.

Explanation:

As the Sun is a medium size star in mid of its life of around 10 Billion years. When it will exhaust all the Hydrogen in the core, it will go through a long process of death: Converting into a red giant to Planetary Nebula to a white dwarf. It will spend trilliion of years in white dwarf phase before fading and converting to a Black dwarf.

If it had been a massive star it would have made a Supernova and then ultimately a black hole or a neutron star.

Our sun, a medium-sized star, will eventually turn into a white dwarf once its hydrogen fuel is exhausted. This is following the standard stellar evolution process. However, larger stars may explode as a supernova or form a black hole.

Our Sun is a star of average mass and will follow the stellar evolution process of stars in its mass range. It is predicted that once it exhausts its hydrogen fuel, it will eventually expand into a red giant and subsequently shed its outer layers, leaving behind a star core. This star core will shrink under its own gravity and become a white dwarf star.

In contrast, stars significantly larger than the Sun can explode in a spectacular event known as a supernova. Very massive stars have the potential to collapse under their own gravity and form a black hole.

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Answer:

Sonar can be used to measure the depth of the ocean bottom

Explanation:

Sonar is a device which uses ultrasound waves to measure the depth of the ocean.

When a sonar is used on a boat, the device emits an ultrasound wave. This wave travels from the boat to the bottom of the ocean, then it is reflected and travels back to the boat. By knowing the speed of the sound wave in water, and by measuring the time it takes for the wave to come back, one can measure the depth of the ocean. In fact:

- v is the speed of the sound wave in water (approximately 1500 m/s)

- t is the total time it takes for the wave to leave the sonar and come back

- d is the distance between the boat and the bottom of the ocean

The sound wave takes a time t to cover twice the distance between the boat and the bottom of the ocean (2d), so we have

[tex]v=\frac{2d}{t}[/tex]

So we can calculate the depth of the ocean:

[tex]d=\frac{vt}{2}[/tex]