What is the magnetic field amplitude of an electromagnetic wave whose electric field amplitude is 50 v/m ?

Potassium-41, 19 protons, 19 electrons, 22 neutrons is the correct name, number of protons, neutrons, and electrons for the following ₁₉⁴¹K.

The correct option is B.

The chemical element with the atomic number 19 and the letter K is potassium. Potassium is a silvery - white metal that may be cut with a knife quickly and painlessly. After only a few seconds of exposure, atmospheric oxygen and potassium metal combine to form flaky, white potassium peroxide.

Your potassium level may be affected by a medicine you're taking, or it may be brought on by a medical problem that needs to be treated. The underlying cause of low potassium is treated, which may entail potassium supplementation.

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The complete question is -

What is the correct name, number of protons, neutrons, and electrons for the following ₁₉⁴¹K.

A- Potassium -19, 19 protons, 19 electrons, 22 neutrons

B- Potassium-41, 19 protons, 19 electrons, 22 neutrons

C- Potassium-19, 41 protons, 41 electrons, 19 neutrons

D- Potassium-41, 41 protons, 41 electrons, 19 neutrons

The distance from the milky way galaxy to the most distant galaxies in the observable universe would be approximately 1.34 kilometers on a scale in which the MIlky Way Galaxy was the size of a marble(about 1 cm).

The MIlky Way is the galaxy that includes our solar system along with billions of stars.

To measure distances in space, we use the unit light year. One light year is the distance travelled by light in year. 1 light year is equal to 9.5 trillion km.

The size of MIlky Way is about 1,00,000 light years and the distance from the MIlky Way to the most distant galaxies in the observable is 13.4 billion light years.

Therefore, the distance from the milky way galaxy to the most distant galaxies in the observable universe would be approximately 1.34 kilometers on a scale in which the MIlky Way Galaxy was the size of a marble(about 1 cm).

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At the speed of 0.44 c as a fraction of c, the moving rod will have a length of 80% that of an identical rod at rest.

The speed of the light is c.

c = 3.0 × 10⁸ m/a

Let the length of the moving rod be L.

Let the length of the rod at rest be l.

Length contraction of the rod is,

[tex]L= \sqrt{ 1 - \frac{ v ^{2} }{c ^{2} } \times l} [/tex]

The length of the moving rod is,

Length of moving road = 80% of the length of the rod at rest.

L = 80 % of the l.

[tex] = \frac{80}{100} [/tex]

= 0.80 l

The moving rod will have a length 80% that of an identical rod at rest at the speed of,

[tex]L ^{2} = (1 - \frac{ v ^{2} }{c ^{2} } )\times l ^{2} [/tex]

[tex] \frac{L ^{2}}{l ^{2} }= (1 - \frac{ v ^{2} }{c ^{2} } )[/tex]

[tex]v ^{2} = (1 - \frac{L ^{2}}{l ^{2} }) \: {c^{2} } [/tex]

[tex]v ^{2} = ( \sqrt{1 - \frac{L ^{2}}{l ^{2} }}) \: {c^{2} } [/tex]

[tex]= ( \sqrt{ 1 - \ \frac{0.80 \: l^{2}}{l ^{2} }}) \: {c^{2} } [/tex]

[tex] = \sqrt{( 1 - 0.80) } c[/tex]

v = 0.44 c

Therefore, at the speed of 0.44 c as a fraction of c, the moving rod will have a length of 80% that of an identical rod at rest.

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The mass of the coin will decrease after the electrons are transferred and it will decrease by a percentage of -

[- (n x 9.1 x 10⁻³¹) / m] x 100 

We have a Penny (Coin) from which some electrons are transferred

We have to determine by what percentage do the transferred electrons change the mass of the penny.

The sufficiency or deficiency of electrons leads to the development of charge.

According to the question -

Assume the mass of penny when no electrons are transferred is m kg.

Now, suppose you rubbed the coin against your hand and the coin lost some of its electrons. Let this number be n. Now, the mass of electron is 9.1 × [tex]10^{-31}[/tex] kilograms.

The total mass in kilograms lost will be -  

(n x 9.1 × 10⁻³¹) Kg

Therefore - the total mass of coin after loosing electrons will be →

m - (n x 9.1 × 10⁻³¹ ) Kg

There will be decrease in the mass of the penny. The amount of decrease in mass will be → final mass - initial mass =

m - (n x 9.1 × [tex]10^{-31}[/tex]) - m = - (n x 9.1 × [tex]10^{-31}[/tex]).

This negative sign indicates that the mass has decreased.

Hence, the mass of the coin after transferring the electrons will decrease and it will decrease by percentage of →

[- (n x 9.1 x 10⁻³¹)/m] x 100    

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(a) The moment about B is 800 lb.in

(b) The magnitude of the force P is 51.3lb

(c) The smallest force P is 44.4lb

(a)

As we know,

[tex]M_{B} = r_{CIB}F_{N}[/tex]

[tex]M_{B}[/tex] = [tex]4[/tex] × [tex]200[/tex]

= 800 lb.in

The moment about B is 800 lb.in

(b)

By using the formula,

[tex]M_{B} =r_{AIB}Psin[/tex]θ

θ = 120°

Then, [tex]800[/tex] = [tex]18[/tex] × [tex]Psin120[/tex]°

P = 51.3lb

The magnitude of the force P is 51.3lb

(c)

P must be perpendicular to the line connecting points A and B in order for it to be minimal.

Using the formula,

[tex]M_{B} = dP_{min}[/tex]

[tex]800[/tex] = [tex]18[/tex] × [tex]P_{min}[/tex]

[tex]P_{min}[/tex] = 44.4lb

The smallest force P is 44.4lb

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The charge will be equal to 4.07 x 10⁻¹⁰ coulombs.

The term "electric field" refers to the physical field that surrounds electrically charged particles and pulls or attracts all other charged particles nearby.

Use the following formula E = Kq / r² Since the electric field is 573 N/C

The distance of the midpoint of the charge.

r = 1/2 x 16 = 8 cm = 0.08m.

573 = (8.998 x 10⁹) x q) / (0.08)²

573 x 0.0064 = 8.998 x 10⁹ x q

q = (573 x 0.0064)/ 8.998 x 10^(9)

q =3.6672 / 8.998 x 10⁹

q = 4.07 x 10⁻¹⁰ coulombs

Therefore, the charge will be equal to 4.07 x 10⁻¹⁰ coulombs.

The complete question is given below:-

The electric field midway between two equal but opposite point charges is 573 n/c , and the distance between the charges is 16.0 cm. Calculate the magnitude of the charge.

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The correct option is (c) 0.5 .

The magnetic field experienced by the patient's protons is 0.5 Tesla.

What is a magnetic field in simple terms?

The area in which the force of magnetism acts around a magnetic material or a moving electric charge is known as the magnetic field. A diagram that shows the magnetic field and how a magnetic force is distributed inside and outside of a magnetic substance.

While opposite poles (north and south) are drawn to one another, the same poles repel one another. The north-seeking poles of the iron's atoms line up in the same direction when it is rubbed against a magnet. A magnetic field is produced by the force that the aligned atoms produce.

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The complete question is:

"If the precessional frequency of the protons net magnetization is approximately 21 MHz, a ____ Tesla magnetic field is being experienced by the patient's protons?

(a) 2.0

(b) 1.5

(c) 0.5

(d) 0.3"

At the maximum height ( top ) position, the ball's speed is minimum so at this point the magnitude of the acceleration at a minimum.

In mechanics, acceleration is the rate at which the velocity of an object changes in relation to time. Acceleration is vector quantity (in that they have magnitude and direction). The direction of the net force acting on an object determines its acceleration. the extent of an object's acceleration as per Newton's Second Law. Such negative accelerations are typically produced by retrorocket burning in spacecraft. Since both acceleration and deceleration are changes in velocity, they are considered equally. Passengers experience each of these accelerations (tangential, radial, and deceleration) until their relative (differential) velocities are equal to the acceleration caused by the change in speed.

At most extreme level position the upward part of speed is generally zero. By then the ball just has level speed and minimum magnitude of acceleration.

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Answer:

It would crash into the thing it's orbiting.

Explanation:

Since it's not going fast enough to counter the pull of gravity.

The calculated value is 5:2.

The reciprocal of the focal length is used to calculate a lens's power. In diopter's, lens power is expressed (D). Positive focal lengths and positive power values are characteristics of convergent (convex) lenses. Negative focal lengths and negative power values are characteristics of diverging (concave) lenses.

Given that a N l =1.25 and a Ng =1.5

The focal length of a glass (g) lens in a medium (m) may be calculated using the formula

f1= (mNg 1) [1/R1/ 1/R2].

fa1 = (aNg1) [1/R1/ 1/R 2] while the lens is in the air.

When the lens is submerged in liquid, f l1 = (aNg 1) [1/R 1/1/R2] =1.5/1.25, which divides equation 1 by equation 2, and

fi/fa = (1.5/1.251)/ (1.51)

=5/2 or

Pa / Pi = 5/2 (since f=1/P).

Therefore, Pa:Pi= 5:2.

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The charge deposited on the object is 150000 C.

Charge can be defined as the product of current and time. The S.I unit of charge is coulombs (C.)

To calculate the charge deposited on the object, we use the formula below

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1\

Hence, the charge deposited on the object is 150000 C.

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(a) King kong will fall straight from the top of the empire state building in 8.81 s.

(b) The velocity of king kong before landing is 86.3 m/s.

What is the acceleration due to gravity?

The longer an object is in free fall, the faster it descends toward the ground due to gravity. In actuality, an object's velocity rises by 9.8 m/[tex]s^{2}[/tex], so it reaches 9.8 m/s by the time it begins to fall.

Time taken for king kong to land on the ground from the Empire  state building is

[tex]$$t=\sqrt{\frac{2 h}{g}}\\=\sqrt{\frac{2(380 \mathrm{~m})}{9.8 \mathrm{~m} / \mathrm{s}^2}}[/tex]

= 8.81 s

(b)

The velocity of the king kong when it touches the ground is

[tex]$$v=\sqrt{2 g h}\\=\sqrt{2\left(9.8 \mathrm{~m} / \mathrm{s}^2\right)(380 \mathrm{~m})}[/tex]

=86.3 m/s

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The smallest change in average temperature that can be measured is 0.0475°C

Average sound speed in deep sea = v=1480m/s

from California to south pacific, sound waves travel 7.7 x [tex]10^{6}[/tex] m distance

smallest time change detected = 1s

The time required for the sound wave to travel the given distance without any change in temperature can be calculated as

t =x/v

=7.7 x [tex]10^{6}[/tex] / 1480

=5202 s

The new time required for the waves,

t1 = t -[tex]\delta t[/tex] =5202-1 =5201s

Now we have to calculate the new sound speed.

v1 = x/t1 = [tex]\frac{7.7 *10^6}{5202}[/tex] =1480.19 m/s

so change in the speed of sound

[tex]\delta v = v1 - v[/tex]

= 1480.19 - 1480 = 0.19 m/s

Then it is given that

[tex]\delta v[/tex] = (4 m/s/°C) [tex]\delta T[/tex](°C)

Formulating,

0.19 m/s = (4 m/s/°C) [tex]\delta T[/tex](°C)

[tex]\delta T[/tex] = 0.19/4

=0.0475°C

Thus, the smallest change in temperature is 0.0475°C

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Answer:

I think it's A

Explanation:

potential energy is energy waiting to move right?

Answer is Zero.

By multiplying the standard deviation of one variable (x) by the standard deviation of the other variable, the Pearson correlation coefficient, denoted by the symbol r, is calculated.

A scatter plot diagram is a graphic representation of data where these two variables are simultaneously observed.

The two variables x and y grow in x when y increases, which is referred to as having a positive slope in a positive correlation.

On the other hand, the correlation between x and y is said to be negative and the accompanying regression line has a negative slope when there is an increase in x and a drop in y. On rare occasions, x and y may not seem to be related. Accordingly, the scatter plot diagram's data typically form a nearly perfect circle and are considered to have zero correlation.

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The potential difference is needed to give a helium nucleus (q=2e) 75.0 keV of kinetic energy is 37.5kV.

Potential difference is the difference in amount of energy that charge carriers have between two points in a circuit.

**Measured in Volts: **Potential difference is measured in volts (V) and is also called voltage. The energy is transferred to the electrical components in a circuit when charge carriers pass through them. We use a voltmeter to measure the potential difference (or voltage).

The potential Difference formula:** V = I x R**

The potential difference (which is the same as voltage) is equal to amount of current multiplied by the resistance. A potential difference of one Volt is equal to the one Joule of energy being used by one Coulomb of charge when it flows between two points in a circuit.

For the above question:

The kinetic energy K given to helium nucleus is equal to its potential energy, which is

E=q ∆ V

where q=2e is the charge of helium nucleus, and  is the potential difference applied to it.

Since we know kinetic energy, we have

E= K= 75 keV= q ∆ V

and from this we can find potential difference:

∆V= K/q= 75keV/2e= 37.5 kV

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It is a false statement that Scientific study can always be categorized as belonging to only one of the three major categories of sciences.

A scientific study involves an investigation into issues that has to do a scientific topic. There are three main branches of science which are physics, chemistry and biology. However most of the research in science is interdisciplinary. It involves a synergy between the various fields of science.

Thus, it is a false statement that Scientific study can always be categorized as belonging to only one of the three major categories of sciences.

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The sine components of the velocity of the boat will balance out the velocity of the river making an angle of 37° with the vertical.

Every vector can be broken into some components, these components on vector addition would again give the resultant vector.

The components of the vector act independently.

Given:

Velocity of the boat in still water = 20km/h

Velocity of the river stream= 12km/h

We want the boat to go directly opposite to the starting point without any drift. For this one component of the boat's speed should be acting parallel to the speed of the stream and cancelling its effect in the motion of the boat.

Therefore preventing the drift of the boat now with the other perpendicular speed vector component the boat will cross the river.

Assumption:

The boat goes at an angle p with the vertical or perpendicular to the river stream.

v is the resultant speed of the boat

u is the velocity of the stream

According to the question:

v × sin(p) = u

Sin(p) = 0.6

p = 37°

Therefore, The sine components of the velocity of the boat will balance out the velocity of the river making an angle of 37° with the vertical.

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The acceleration of the block will be 1 / 3 times.

Acceleration of any object is defined as the variation in the speed of the object with the variation of the time. Acceleration is a vector term and to define it we require both the magnitude and the direction. The unit of the acceleration can be m / sec², miles / sec², etc.

Given that the mass of a sliding block is tripled while a constant net force is applied. The acceleration of the block will be calculated as below:-

F = Mass x Acceleration

F = 3 Mass x Acceleration

Here to make the force constant the acceleration has to be divided by 3.

Therefore, the acceleration of the block will be 1 / 3 times.

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Answer:

25

Explanation:

a = 18t + 10 m/s2

The term for the property of sound that gives instruments and voices their unique tone color is timbre.

different names for timbre include tone colour and tone first-rate.

the arena is home to a extensive form of musical units.

every tool differs from every other tool by having a unique sound or tone coloration.

A musical tool's awesome sound pleasant that sets it apart from other gadgets is called the tone coloration or timbre and is unrelated to pitch, rhythm, or quantity.

The definition of tone colour and tone first-rate, which can be often used interchangeably, are fairly similar.

The intrinsic sound features of any device that satisfactory characterise the tone colour in tune are known as tone best.

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sp3-s

In the ammonium ion , 2s and 2p orbitals create four sp3 hybrid orbitals. Three form covalent bonds with hydrogen. The fourth sp3 orbital has a non bonding lone pair of electrons, which can create ammonium ion.

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(a) The minimum time interval needed before it can come to rest is t = 10.17 sec for a jet which is travelling at a a speed of 87 m/s, and its acceleration can have a maximum magnitude of 8.55 m/s2

(b) yes the jet can land on a small tropical island airport where the runway is 0.800 km long.

(c) The jet is safe to land.

Acceleration is the rate at which an object's velocity with respect to time changes. It is a vector quantity to accelerate (in that they have magnitude and direction). The direction of the net force acting on an object determines the direction of its acceleration. According to Newton's Second Law, an object's acceleration is the result of two factors working together: the object's mass, which varies depending on the materials it is made of, and the net balance of all external forces acting on it. The magnitude of an object's acceleration is inversely proportional to the object's mass.

The SI unit for acceleration is [tex]m/sec^{2}[/tex].

Use the formula to calculate the time required to stop the jet

v = u + at

0 = 87 + (-8.55)t

t = [tex]\frac{87}{8.55}[/tex]

t = 10.17 sec

Use the following formula to calculate the distance travelled by the jet is,

[tex]x = ut + \frac{1}{2} at^{2}[/tex]

= [tex]( 87 \times 10.17) + \frac{1}{2} (-8.55) (10.17)^{2}[/tex]

= 884.79 - 884.31

=.48m

Yes, the can land on a small tropical island airport where the runway is 0.800 km long.

The jet is safe to land.

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Yes the motion is accelerated.

We have a artificial satellite that moves at a steady 25,000 km/hr in a circular orbit around earth.

We have to determine whether or not it is accelerated.

An artificial Satellite is a man - made artificial body placed in orbit round the earth or moon or another planet in order to collect information or for communication.

According to the question -

v = 25000 km/hr

Now for the motion to be accelerated the velocity must change with respect to time. But, the velocity here is constant. It should be kept in mind that the velocity is a vector quantity, its magnitude is constant but its direction keeps on changing in circular motion, and hence, its acceleration also changes.

Hence, yes the motion is accelerated.

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Answer:

you get yet?

Explanation:

Answer:At the place where it is when acceleration is the least.

Explanation:

I believe it is this answer. At launch the speed is the slowest because as it is falling the acceleration increases.

The net force is in the first case is 13 N and in the second case is 55 N.

All mass-bearing objects are attracted by gravitational force. Because it consistently attempts to bring masses together rather than push them apart, the gravitational force is referred to as attractive.

As we know, the gravitational force is given by:

[tex]\rm F = \dfrac{Gm_1m_2}{r^2}[/tex]

Where G is the gravitational constant.

m1 and m2 are masses.

r is the distance between the masses.

It is given that:

Two forces are given:

The two forces act in opposite directions:

= 34 - 21

= 13 N

Both forces act in the same direction:

= 34 + 21

= 55 N

Thus, the net force is in the first case is 13 N and in the second case is 55 N.

The question is incomplete the complete question is:

find the strength of the net force produced by a 34-n force and a 21-n force in each of these cases.

The two forces act in opposite directions.

Both forces act in the same direction.

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Answer:

671.22 mi/hr

Explanation:

[tex](\frac{300 m}{s} )(\frac{1mi}{1609m} )(\frac{3600s}{1hr} )=\frac{(300)(3600)}{1609} =671.22mi/hr[/tex]

Hope this helps

The wind chill index will increase, if the temperature remains the same but the wind speed increases.

Wind is the customary improvement of air or various gases near with a planet's surface. Turns occur on an extent of scales, from whirlwind streams persevering through a few minutes, to neighborhood breezes made by warming of land surfaces and persevering through two or three hours, to overall breezes coming about as a result of the differentiation in maintenance of daylight based energy between the climate zones in the world. The two essential drivers of tremendous degree natural scattering are the differential warming between the equator and the posts, and the turn of the planet (Coriolis influence). Inside the wildernesses and subtropics, warm low streams an over area and undeniable levels can drive rainstorm dispersals. In ocean front areas the sea breeze/land breeze cycle can describe close by breezes; in locales that have a variable area, mountain and valley breezes can win.

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Scientists occasionally gather data that deviates from conventional ideas or interpretations. The widely held idea that the new information contradicts will frequently be revised or changed to take into account the new information if it is repeatedly verified.

Empirical evidence is the foundation of scientific knowledge. It is strong and lasting since it is the end product of all the prior study and testing that was done. But science also acknowledges that all of this information is a product of human endeavor and that it may contain numerous errors. Therefore, once a new idea is discovered and repeatedly confirmed, scientific knowledge is adaptable enough to take it into account and evolve.

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For an object in uniform circular motion, its velocity and acceleration vectors are always perpendicular to each other at every point in the path is true.

Circular motion refers to the movement of a body part around the perimeter of a circle or in a circular motion. It may rotate at a fixed speed and angular rate or it may rotate at a variable rate, making it either uniform or non-uniform. A three-dimensional body's components move in circles as it rotates around a fixed axis. The center of mass of a body moves according to the equations of motion. In circular motion, the distance between the body and a fixed point on the surface stays constant.

Examples of circular motion include an artificial satellite circling the Earth at a constant altitude, ceiling fan blades spinning around a hub, and a rotating disc.

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