(Repost) I need help with this physics question. Thanks in advance! Answer ASAP.

The acronym FN on a force diagram would represent Normal Force. That is option C.

A force diagram is the type of diagram that illustrates the different types of forces acting on an object.

The types of forces that can be represented by a force diagram include the following:

The normal force (FN) is the force that is acting of the object which is perpendicular to the surface the object is in contact with.

Learn more about forces here:

https://brainly.com/question/12785175

#SPJ1

Answer:

C~

Explanation:

Fn is normal, if it's negative then it's most likely -Fn.

Have a good day.

The reason the position of a particle cannot be specified with infinite precision is the uncertainty principle .

The position of a particle moving in a straight line is a vector which represents a point P on the line in relation to the origin O. The position of a particle is often thought of as a function of time, and we write x(t) for the position of the particle at time t.

The Heisenberg uncertainty principle is a law in quantum mechanics that limits how accurately you can measure two related variables. Specifically, it says that the more accurately you measure the momentum (or velocity) of a particle, the less accurately you can know its position, and vice versa.

The uncertainty principle (for position and momentum) states that one cannot assign exact simultaneous values to the position and momentum of a physical system. Rather, these quantities can only be determined with some characteristic “uncertainties” that cannot become arbitrarily small simultaneously

To learn more about Heisenberg uncertainty principle here

https://brainly.com/question/3887702

#SPJ4

Answer: = 25. 5 m

Explanation:

Solve for C using Pythagorean theorem:

1. [tex]\sqrt{a^{2}+b^{2} }=c[/tex]

2.  [tex]\sqrt{22.2 m ^{2} +12.6m^{2} } =c[/tex]

3. [tex]25.52646 m= c[/tex]

∴ Magnitude of the vector is 25.5 m

The acceleration would be 1m/s²

putting pressure to a door to push or pull it. Because force is a vector variable, it has both magnitude and direction. Force is defined as the "product of mass and acceleration of a body," in accordance with Newton's second law.

Acceleration - any process that alters velocity. There are only two ways to accelerate: changing your speed or changing your direction, or changing both. This is because velocity is both a speed and a direction.

if the force applied is f

the mass of the object is m

and acceleration is a = 2m/s²

so the relation will be,

f = ma

f = m×2

ATQ,

Now, when mass is 2m

a = f/m

a = 2m / 2m

a = 1 m/s²

to learn more about Acceleration go to - https://brainly.com/question/12550364

#SPJ4

_______________

λ=2,4 nm = 2,4·10⁻⁹ m

c=3·10⁸ m/s

h=6,63·10⁻³⁴ J·s = 4,14·10⁻¹⁵ eV·s

_______________

E - ?

_______________

[tex]\displaystyle \boldsymbol{E}=h\nu =h \frac{c}{\lambda} =4,14\cdot 10^{-15} \; eV\cdot s\cdot \; \frac{3\cdot 10^8\; m/s}{2,4\cdot 10^{-9}\; m} =517,5\; eV\approx \boldsymbol{518\; eV}[/tex]

The voltage remain constant

According to Ohm's Law:

V = IR

If we halved the resistance let:

R'=R/2

then

I'=21 in order to kept the Voltage same. Also the resistance is the opposition to the current. So, if resistance will halved then obviously current will double

So when we put these value in to Ohm's Law the results is:

V'=I'R'

V'=21(R/2)

V'-IR which is equal to first voltage. Hence,

V'=V

So, the voltage remains same

Learn more about Voltage here:

https://brainly.com/question/1406960

#SPJ4

A galvanic cell is formed when two metals are immersed in solu- tions differing in concentration 1 when two different metals are immersed.

To learn more about galvanic cell, refer to:

https://brainly.com/question/13031093

#SPJ4

The shortest time in which a car could accelerate from 0 to 70 mph is 3.193 seconds.

To find the answer, we have to know more about the friction.

                          [tex]v=u+at[/tex]

                        [tex]v=70mph=31.29m/s\\1mile=1609.3m,1hour=3600s\\u=0\\k_s=1\\k_k=0.8[/tex]

                    [tex]a=g*k_s=9.8*1=9.8m/s^2[/tex]

                    [tex]t=\frac{v-u}{a} \\t=\frac{31.29}{9.8}=3.193s[/tex]

Thus, we can conclude that, the shortest time in which a car could accelerate from 0 to 70 mph is 3.193 seconds.

Learn more about the shortest time here:

https://brainly.com/question/3017271

#SPJ4

The critical value of t for a two-tailed test with 14 degrees of freedom using = 0. 5 is ±164.5577.

In hypothesis testing, critical values are one of the two approaches which allow you to decide whether to retain or reject the null hypothesis.

The critical value approach consists of checking if the value of the test statistic generated by your sample belongs to the so-called rejection region, or critical region, which is the region where the test statistic is highly improbable to lie. A critical value is a cut-off value (or two cut-off values in case of a two-tailed test) that constitutes the boundary of the rejection region(s). In other words, critical values divide the scale of your test statistic into the rejection region and non-rejection region.

To determine critical values, you need to know the distribution of your test statistic under the assumption that the null hypothesis holds. Critical values are then the points on the distribution which have the same probability as your test statistic, equal to the significance level α. These values are assumed to be at least as extreme at those critical values.

To learn more about Critical values : https://brainly.com/question/15728178

#SPJ4

Answer:

del mundo

Explanation:

The λmax of 2,3,4-trimethylhexatriene is 280 nm.

Ethylene has a λmax of 175nm.

Butadiene has a λmax of 220nm.

2-methyl-1,3-butadiene has a λmax or 215nm.

1,3,5-hexatriene has a λmax of 258nm.

Woodward's rules, sometimes known as Woodward-Fieser rules (after Louis Fieser) and named after Robert Burns Woodward, are a number of sets of empirically developed principles that aim to forecast the wavelength of the absorption maximum (max) in an ultraviolet-visible spectrum of a certain molecule.

By using the Woodward Fieser rule,

R- (Alkyl Group) .... +5 nm = 5 × 2 = 10

RO- (Alkoxy Group) .. +6 = 6 × 2 = 12

Adding 22nm to the λmax of 1,3,5-hexatriene as it has 2 alkyl groups and 2 alkoxy groups to form 2,3,4-trimethylhexatriene.

The λmax of 2,3,4-trimethylhexatriene is 280 nm.

Learn more about Woodward-Fieser here:

https://brainly.com/question/16982345

#SPJ4

The “Generators” generate current, and transformers convert between current and voltage. According to Faraday's law, the magnetic flux enclosed by a closed path changes at a time rate whose negative is equal to the electromotive force surrounding the way.

Generators are machinery that transforms mechanical energy into electrical energy. A static device called a transformer is used to move electrical energy from one circuit to another. Magnetic coupling and electrical separation characterize a transformer.

A fundamental property of electromagnetism known as Faraday's law of induction describes how a magnetic field will interact with an electric circuit to produce an electromotive force or electromagnetic induction.

To know more about Faraday's law refer to: https://brainly.com/question/28185352

#SPJ4

A atomic neutron particle that is attracting another atomic neutron is an example of the strong nuclear force acting in an atom (Option B).

The expression 'nuclear forces' makes reference to the attraction between different subatomic particles in a given nucleus of a particular atom, which represents the strongest force in the universe.

Subatomic particles include positively charged particles (i.e., protons), neutrally charged particles called neutrons, and electrically negative charged particles called electrons (e-).

In conclusion, a atomic neutron particle that is attracting another atomic neutron is an example of the strong nuclear force acting in an atom (Option B).

Learn more about nuclear forces here:

https://brainly.com/question/16959709

#SPJ1

Speed of walkway = 1.84 m/s

let x=speed of walkway

then (2.8+x)= speed of child moving in direction of walkway

then (2.8-x)= speed of child moving against direction of walkway

Travel time=distance/speed

travel time of child moving in direction of walkway=23/(2.8+x)

travel time of child moving in direction of walkway=23/(2.8-x)

total elapsed time given=29s

23/(2.8+x)+23/(2.8-x)=29

LCD=(2.8+x)(2.8-x)

23(2.8-x)+23(2.8+x)=29(2.8+x)(2.8-x)

23*2.8-23x+23*2.8+23x=29(2.8^2-x^2)

23(2.8+2.8)/29=2.8^2-x^2

x^2=(2.8)^2-(23*5.6)/29)=3.4

x=sqrt(3.4)=1.84m/s

Speed of walkway = 1.84 m/s

Learn more about Speed here:

https://brainly.com/question/4931057

#SPJ4

The maximum wavelength that will interfere destructively is [tex]$\lambda=\frac{2 h x}{d}$[/tex]

The maximum wavelength that will interfere constructively is [tex]$\lambda=\frac{4 h x}{d}$[/tex]

To learn more about Wavelength, refer to:

https://brainly.com/question/10728818

#SPJ4

The radius is increasing at a rate of  0.31cm/sec.

We know the volume of the balloon is increasing at a rate of 3.3 [tex]ft^{3} min[/tex]

This is expressed as:

[tex]\frac{dV}{dT}[/tex] = 3.3

The volume of a sphere is given by:

V = [tex]\frac{4}{3}[/tex]π[tex]r^{3}[/tex]

The question asks to find the rate of which the radius is increasing when the radius is 0.65 feet.

We need to find:

[tex]\frac{dr}{dt}[/tex]

Since we don't have t in our equation, we will be differentiating implicitly. We can use the chain rule for this:

[tex]\frac{dV}{dT}[/tex] = [tex]\frac{dV}{dR}[/tex].[tex]\frac{dr}{dt}[/tex]

We already know  

[tex]\frac{dV}{dT}[/tex] = 3.3

∴

3.3 =  [tex]\frac{dV}{dR}[/tex].[tex]\frac{dr}{dt}[/tex]

To find [tex]\frac{dV}{dR}[/tex]  we differentiate  V = [tex]\frac{4}{3}[/tex]π[tex]r^{3}[/tex]

∴

3.3 = 4[tex]\frac{3.3}{5.30}[/tex][tex]r^{2}[/tex].[tex]\frac{dr}{dt}[/tex]

Dividing ,

[tex]\frac{3.3}{5.30}[/tex] = [tex]\frac{dr}{dt}[/tex] = 0.622 ft/min = 0.31 cm/sec

The radius is increasing at a rate of  0.31cm/sec.

Learn more about spherical radius here:

https://brainly.com/question/15858114

#SPJ4

High-frequency waves are (more-less) likely to ionize an atom because of their greater (energy speed) for low- radiofrequency is generally considered to be non-ionizing, while high- radiofrequency is generally considered to be ionizing.

Microwaves and radio waves are examples of radiofrequency (RF) radiation, which is at the low-energy end of the electromagnetic spectrum. It belongs to the non-ionizing radiation class. Non-ionizing radiation lacks the energy to expel an atom's electrons.

A minimally invasive procedure known as radiofrequency ablation, or RFA, reduces the size of tumors, nodules, and other growths in the body. RFA is used to treat a variety of ailments, such as benign and cancerous tumors, chronic venous insufficiency in the legs, and persistent back and neck pain.

To learn more about radiofrequency please visit -
https://brainly.com/question/15188676
#SPJ1

A particle with a charge of 5. 0 μc is placed at the corner of a cube. the total electric flux through all sides of the cube is  7.1 × [tex]10^4 Nm^2/C[/tex].

Electric flux is a measurement of how many electric field lines are present at any given surface. It has a scalar value. Voltmeters are its SI unit. Gaussian Law It is known as a closed surface when the total flux linked inside it is equal to one zero times the total charge contained within it.

The electric flux is positive when electric lines emerge from a surface and negative when the same lines enter a surface.

Flux through any surface is given by;

                                        Φ[tex]= \frac{Q}{E}[/tex]

Where, E = The magnitude of the electric field.

            Q = The charge of the particle.

If a corner atom is shared by eight neighboring such cubes, then one- eight part of the corner atom or particle contributes to each cube.

                            Φ [tex]= \frac{Q}{8E}[/tex] = [tex]\frac{5 * 10^-^6}{8*8.5 * 10^-^1^2}[/tex]

                                         = 7.1 × [tex]10^4 Nm^2/C[/tex]

Learn more about electric flux here:

https://brainly.com/question/26289097

#SPJ4

The time taken by the light reflected from sun to reach on earth will be 8.4 minutes.

To find the answer, we need to know about the distance travelled by light.

         [tex]d=(1.5*10^8km)+2(3.8*10^5km)=1.51*10^8km=1.51*10^{11}m[/tex]

                      [tex]t=\frac{1.51*10^{11}}{3*10^8}=503.33 s\\t=\frac{503.33}{60}=8.4min[/tex]

Thus, the time it takes for the light from the Sun to reach Earth and be recognized as 8.4 minutes.

Learn more about distance here:

https://brainly.com/question/11495758

#SPJ4

0.600

In a regression analysis, if sse = 200 and ssr = 300, then the coefficient of determination is: 0.600

1. You have that the data set having SSR=300 and SSE=200

2. Therefore you have the coefficient of determination is:

r²=SSR/SSTO

SSTO=SSR+SSE

3. Then, when you substitute the values, you obtain:

SSTO=200+300

SSTO=500

r²=300/500

4. So, you have that the result is:

r²=0.6

As a result, as you can see, the solution to the previous exercise is that the coefficient of determination is 0.6

To learn more about regression analysis visit:

https://brainly.com/question/12213669

#SPJ4

If the galaxies that are being studied are very far away, it follows that the telescope with the biggest aperture possible should be used.

A telescope is a device that is used for the study of the outer space. The telescope can be mounted in an observatory and then used to observe the various galaxies that exist out there in space.

There are various kinds of telescopes that could be used for different kinds of studies that take place in outer space and these telescopes are quite responsible for the breakthroughs that we have so far experienced in the study of the occurrences in outer space.

Thus, if the galaxies that are being studied are very far away, it follows that the telescope with the biggest aperture possible should be used.

Learn more about telescope:https://brainly.com/question/556195

#SPJ1

The velocity of an electron that has been accelerated through a difference of potential of 100 volts will be 5.93 * [tex]10^{6}[/tex] m/s

Electrons move because they get pushed by some external force. There are several energy sources that can force electrons to move. Voltage is the amount of push or pressure that is being applied to the electrons.

By conservation of energy, the kinetic energy has to equal the change in potential energy, so KE=q*V. The energy of the electron in electron-volts is numerically the same as the voltage between the plates.

given

charge of electron = 1.6 × [tex]10^{-19}[/tex] C

mass of electron  = 9.1 × [tex]10^{-31}[/tex] kg

Force in an electric field = q*E

potential energy is stored in the form of work done

potential energy = work done = Force * displacement

                                                   = q * (E * d)  

                                                   = q * (V) = 1.6 × [tex]10^{-19}[/tex] * 100

stored potential energy = kinetic energy in electric field

kinetic energy = 1/2 * m * [tex]v^{2}[/tex]

                        = 1/2 *  9.1 × [tex]10^{-31}[/tex] *  [tex]v^{2}[/tex]

equation both the equations

1/2 *  9.1 × [tex]10^{-31}[/tex] *  [tex]v^{2}[/tex] = 1.6 × [tex]10^{-17}[/tex]

[tex]v^{2}[/tex] = 0.352 * [tex]10^{14}[/tex] m/s

[tex]v^{2}[/tex] = 35.2 * [tex]10^{12}[/tex]

    = 5.93 * [tex]10^{6}[/tex] m/s

To learn more about  kinetic energy in electric field  here

https://brainly.com/question/8666051

#SPJ4

160 W rate it will radiate.

The Kelvin scale, where 0 represents absolute zero, is used to measure absolute temperature. The temperature at which matter's particles move the least and cannot cool down is known as the zero point (minimum energy)

The lowest energy state for a thermodynamic system is absolute zero. In terms of temperature, it is equivalent to 459.67 °F in Fahrenheit and 273.15 °C in Celsius.

The temperature of an object on a scale where 0 is assumed to be absolute zero is known as its absolute temperature, also known as thermodynamic temperature. The Kelvin and Rankine scales measure absolute temperature.

learn more about absolute temperature. here

https://brainly.com/question/18560146

#SPJ4

The ratio of their amplitudes will be 2.41.

To find the answer, we have to know more about the simple harmonic motion.

                        [tex]E_1=5.8E_2\\m_1=m_2 \\\omega_1=\omega_2[/tex]

                        [tex]A=\sqrt\frac{2E}{k} \\k=m\omega^2[/tex]

                      [tex]\frac{A_1}{A_2} =\sqrt{\frac{E_1}{E_2} } =\sqrt{\frac{5.8E_2}{E_2} } =2.41[/tex]

Thus, we can conclude that, the ratio of their amplitudes will be 2.41.

Learn more about simple harmonic motion here:

https://brainly.com/question/22422926

#SPJ4

A stock tank heater rated at 1500 watts will use 1,29,600 kJ of energy in a 24 hour period.

Given :

We know that

Energy = Power x time

E = P * t

E = 1500 x 24 x 3600

E = 129600000 J ( or 129600 kJ)

Hence, a stock tank heater rated at 1500 watts will use 1,29,600 kJ of energy in a 24 hour period.

The formula that links energy and power is:

Energy = Power x Time.

The unit of energy is the joule, the unit of power is the watt, and the unit of time is the second.

If we know the power in watts of an appliance and how many seconds it is used we can calculate the number of joules of electrical energy which have been converted to sortie other form.

To learn more about energy : https://brainly.com/question/13881533

#SPJ4

The nebular hypothesis explains how our solar system probably formed from a giant cloud of gases and dispersed solid particles.

The most widely accepted theory in cosmogony to explain how the solar system formed and evolved is the nebular hypothesis. It implies that gas and dust orbiting the sun are what created the solar system.

Following are the steps in nebular theory:

The nebular hypothesis states that enormous clouds of hydrogen and helium imploded. The cloud's center heated up significantly after collapsing. The system then started to rotate as it became hotter and more compressed. The formation of the solar system started at this point.

Learn more about solar system here:

brainly.com/question/12075871

#SPJ4

Answer:

632.8 nm is the wavelength (in air) of red light from a helium neon laser.