a 100 kg person is riding a 10 kg bicycle up a 25o hill. the hill is long and the coefficient of static friction is 0.9. the person rides 10 m up the hill then takes a rest at the top. if she then starts from rest from the top of the hill and rolls down a distance of 7 m before squeezing hard on the brakes locking the wheels. how much work is done by friction to bring the bicycle to a full stop, knowing that the coefficient of kinetic friction is 0.65? draw an fbd and use the work formula and/or the work-energy principle.

The labeling of blood vessels shown below:

Arterioles are the incredibly small branches of arteries, the blood channels that convey blood out from the heart. Venules, which are incredibly tiny branches that gather blood from numerous organs and body parts, join to create veins, which carry blood back to the heart.

The arteries divide into progressively smaller branches that supply the body's tissues and organs with oxygen and other nutrients. The oxygen and other nutrients enter the cells when the blood passes through the capillaries, while waste products from the cells travel into the capillaries.

Labeling are shown below:

To know more about blood vessels refer to:

https://brainly.com/question/11763276

#SPJ1

The complete question is as follows:

Label the blood vessels using the hints provided. Pterygoid plexus of v Middle meningeal Superficial temporal Maxillary v Facial v Posterior auricular V Reset Zoom.

The linear acceleration of the disk is [tex]8.17 m/s^{2}[/tex].

We know that, a rotating disk has two acceleration:

                       Radial acceleration ([tex]a_{r}[/tex]) = ω^2 * r  and  

                       Tangential acceleration[tex](a_{t} )[/tex] = [tex]\alpha r[/tex]

where ω = angular velocity

           [tex]\alpha[/tex] = angular velocity

           r = radius

Given, ω = 4 m/s , [tex]\alpha[/tex] = 3.4 [tex]m/s^{2}[/tex] , r = 0.5m

Putting these values in above equation we get

           [tex]a_{r} = 8 m/s^{2} \\a_{t} = 1.7 m/s^{2}[/tex]

The linear acceleration is given by:

           [tex]a = \sqrt{a_{r} ^{2} + a_{t} ^{2} }[/tex]

Putting respected values in above equation we get a = 8.17 [tex]m/s^{2}[/tex].

So the linear acceleration of the disk is [tex]8.17 m/s^{2}[/tex].        

To know more about rotational mechanics visit:

https://brainly.com/question/13262346?

#SPJ4                  

Answer:

1400

Explanation:

because when the 70m long x20m lone will give u 1400 then u time it with 1 that will give u 1400

If we are severely dehydrated, ADH levels increases resulting in more concentrated urine.

Low BP means low GFR produced so Renin is increased, high ADH and high aldosterone.

Oxylate used in formation of calcium stones in kidney.

What is ADH?

ADH is also called arginine vasopressin. A hormone produced in the hypothalamus of the brain and stored in the posterior lobe of the pituitary gland. It tells your kidneys how much water to save.

ADH constantly regulates and balances the amount of water in the blood. Higher concentrations of water increase blood volume and pressure. Osmotic sensors and baroreceptors work in concert with ADH to maintain hydrogen metabolism.

Osmotic sensors in the hypothalamus respond to the concentration of particles in the blood. These particles include sodium, potassium, chloride and carbon dioxide molecules. When particle levels are out of balance or blood pressure is too low, these sensors and baroreceptors direct the kidneys to store or release water to maintain a healthy spectrum of these substances. . It also regulates the body's thirst.

Therefore, If we are severely dehydrated, ADH levels increases resulting in more concentrated urine.

Low BP means low GFR produced so Renin is increased, high ADH and high aldosterone.

Oxylate used in formation of calcium stones in kidney.

To know more about ADH, visit:

https://brainly.com/question/28063750

#SPJ4

According to the given statement Thousands of times have been used to test and validate Einstein's theory of relativity.

The Global Positioning System, or GPS, is a system of orbiting satellites that is developed with Einstein's Relativity in mind. We apply the Relativity Principle of Einstein every time they use the GPS. Disturbances move across space-time as gravitational waves, according to General Relativity.

Once more, Newton's theory violated relativity by predicting an instantaneous force. General Relativity is a brand-new alternative gravity theory that Albert Einstein proposed in 1915. Waiting for a complete solar eclipse was the only way to compare it to Newton's hypothesis. Today, 100 years ago, Einstein was shown to be correct.

To know more about Einstein's theory visit:

https://brainly.com/question/22816553

#SPJ4

1) Communication climate refers to the social tone of a relationship: True

2) The interpretation of a message as confirming or disconfirming is: subjective.

3) Communication climate is determined by the degree to which people see themselves valued: True.

The degree to which individuals esteem themselves affects the communication atmosphere. It is useless to paraphrase their critiques of us in return.

The atmosphere of communication is crucial because it may affect how messages are received. Understanding the notion is crucial because the communication climate is perceived, which enables companies to foster a pleasant atmosphere and offer clarification as needed.

The "overall feeling or emotional tone amongst people" is referred to as the "communication environment" (Wood, 2018).

1) True

2) subjective

3) True

To know more about communication climate refer to:

https://brainly.com/question/16292121

#SPJ1

Radio is the electromagnetic radiation wavelength is efficiently observed using ground based telescopes. Option A.

In terms of physics, electromagnetic radiation is made up of electromagnetic field waves that travel over space while carrying radiant electromagnetic energy. It consists of X-rays, gamma rays, microwaves, infrared, light, and radio waves. These waves are all a component of the electromagnetic spectrum.

The energy levels of electromagnetic radiation can range from low to high. It consists of x-rays, gamma rays, infrared light, visible light, ultraviolet light, radio waves, and microwaves.

Read more on electromagnetic radiationhere: https://brainly.com/question/1408043

#SPJ1

Maximum distance that it moves down is 26 cm, when block hangs at rest with the spring stretched by 13.0 cm.

In the formula, F = -k x :  k is called the spring constant and is a measure of the spring's stiffness. When a spring is stretched or compressed,  its length changes by an amount x from  equilibrium length, and then it exerts a force F = -kx in a direction towards the equilibrium position.

Given that the equilibrium position is 13 cm below the starting point. As motion is symmetric about the equilibrium position, so the two turning points are 26 cm apart.

13 *2 = 26cm

To know more about spring stretch, refer

https://brainly.com/question/21278956

#SPJ4

Heat transfer (in j) occurs from a system Q = - 156 J.

We use thermodynamics principles in this situation. There are already obtained relationships for intense properties like internal energy (U), heat transfer (Q), and work (W) that were based on differential equations. The formula is

ΔU = Q + W

But since these factors depend on their signs, we must remember to take them into account. Van Ness, Smith, and Abbott assert that declining has a negative sign convention. If work is being done ON the system, the sign is positive; however, if work is being done BY the system, the sign is negative. in this instance,

ΔU = - 200 J\sW = - 44 J

In that case, Q can be found.

-200 J = Q - 44 J

heat transfer (in j) occurs from a system Q = - 156 J.

To know more about  heat transfer visit;-

https://brainly.com/question/13433948

#SPJ4

The direction of the force is sliding friction is always select one to that velocity of the object and is Select one Statics friction this statement is false.

Friction is the force resisting to the relative motion of the  solid surfaces, fluid layers, and material elements and the  sliding against each  other. There are some several types of friction: Dry friction is a force and that opposes the relative lateral and the  motion of two solid surfaces in contact.

Frictional force offers to the resistance to the applied by the  force opposing it is the  motion. Thus, it always acts like it is  in the direction of the  opposite to that of the object in the motion

So it will not be in direction  of the motion

And static friction also work  as the opposite direction of the  motion .

Thus, it is false.

To know more about friction click-

https://brainly.com/question/24386803

#SPJ1

To balance the seesaw, Jon should sit in the middle, where dJ = 1.7 m

The equation for balancing the moments at the seesaw's center is as follows:

∑Mo = 0

'Mo =

Where:

Mo: Moments in the balance's center(o) added algebraically

Moment of the o point (Mo) (N*m)

force F ( N)

Distance from the force to the origin (in N*m)

Data

mA = 60 kg: Anna's mass mJ = 70 kg:

Jon's mass dA = 2 m:

Anna's distance from the seesaw's center g:

Gravitational acceleration

Calculating the distance (dJ) from Jon to the seesaw's center with ∑Mo = 0 Ana's weight is WA, and Jon's weight is WJ.

W = (mA*g)(dA) - (mJ*g)(dJ) = 0 (mA*g)(dA) - (mJ*g)(dJ) = 0

(mA)(dA) = (mJ)(dJ)

The center where Jon should sit for the seesaw to be balanced is  = 1.7 m.

To know more about  seesaw visit:-

https://brainly.com/question/28566147

#SPJ4

Angular velocity of the microwave in radians per second = 0.6492 rad/s

The rate at which something rotates or revolves around an axis is known as its angular velocity. The Greek letter omega (ω) stands for angular velocity. Because it is expressed as an angle per unit of time, angular velocity in the SI is measured in radians per second.

According to the given information

We need to find the Angular velocity of the microwave in radians per second

For that ,Firstly we will find the frequency

Microwave rotate at the rate of = 6.2 rev/min

                                                    = 6.2/60 rev/s

                                                    = 0.10333 rev/s

Now , we know that

Angular velocity = 2[tex]\pi[/tex]f

                      ω  = 2×3.14×0.10333

                      ω = 0.6492 rad/s

Angular velocity of the microwave in radians per second = 0.6492 rad/s

To know more about Angular velocity

https://brainly.com/question/1980605

#SPJ4

The resulting dipole is 0.56 N/C

Charges of the dipole, q = 30

Separation distance between the charges, d = 0.0010 m

Separation distance between the center and the charge, d' = d/2 = 0.25

x = 4.0 m

y = 0.0 m

Now,

The electric field due to the positive charge on the right of the origin:

E = k{q/(d'+x)²}

where

k = Coulomb's constant = 9 x 10⁹ Nm²/C²

Now,

E = 1124.72 N/C

Similarly, electric field due to the negative charge:

E' = k{q/(x-d')²}

E' = -1125.72 N/C

Thus

E(total) = E' - E = 0.56 N/C

Therefore, the positive charge is 0.56 N/C.

To know more about charge, refer: https://brainly.com/question/14592329

#SPJ4

The velocity of the fuel through the nozzle. assume that the fuel filled the entire cross-sectional area of the nozzle. 6.45ft/sq

Velocity is a vector expression of the displacement that an item or particle undergoes with appreciate to time . the usual unit of pace importance (additionally referred to as speed ) is the meter according to 2nd (m/s).

calculation:-

Volume of the fuel pump is V = Avt

V = 687 gallons = 2.6 m³

t = (2.31) 60 × 9

= 1247.4 sec

A = πr²

= 3.141 × (0.0368/2)²

= 0.00106 m³

V = Avt

2.6 m³ = 0.00106 m³ v × 1247.4

V = 1.966 m/s

V = 6.45 ft/sec

Nozzles are used within the rocket and plane engineering to provide jet propulsion, in intensive shattering and spraying technology, in jet gadgets and ejectors and in fuel dynamic lasers and gasoline mills (see gasoline turbine).

Learn more about  cross-sectional area here :-

brainly.com/question/83161

#SPJ4

your question seems incomplete, I think you are asking the question which is given below.

Question: As the frequency of electromagnetic waves increases, what happens to the wavelength?

when the frequency of an electromagnetic wave increases, its wavelength would decrease, according to eq (i).

speed of light = frequency X wavelength ............(i)

as the speed of light is constant in the same medium.

see this to get the idea :

brainly.com/question/17831582

The wavelength of the electromagnetic wave is 1.58 * 10⁵m. Electromagnetic radiation is made up of electromagnetic field waves that travel through space carrying electromagnetic radiant energy.

Because of their diverse origins and effects on matter, electromagnetic waves of varying frequencies are given different names. Microwaves, radio waves, visible light, ultraviolet radiation, infrared radiation, X-rays, and gamma rays are in the order of increasing frequency and decreasing wavelength.

The relation between the wavelength, frequency, and speed is as follows:

ν = λf

Here, the speed of the electromagnetic wave is ν

Rearrange the above expression to get λ

λ = ν / f

The speed of electromagnetic waves in a vacuum is 3 * 10⁸ m/s.

Substitute 1.9kHz for f and 3 * 10⁸ m/s for ν in the above expression.

λ = ν / f

λ = ( 3 * 10⁸ m/s) / 1.9kHz

λ = ( 3 * 10⁸ m/s) / 1.9kHz (10³ Hz/ 1kHz)

λ = 157894 m

λ = 1.58 * 10⁵m

Thus, the wavelength of the electromagnetic wave is 1.58 * 10⁵m.

Learn more about the electromagnetic wave here:

https://brainly.com/question/3101711

#SPJ4

The plantaris works by flexing the knee and ankle joints sporadically. about the foot's position, the central nervous system.

There are numerous ways in which the plantaris tendon might hurt. First, when the plantaris tendon is overworked or overloaded, it might experience tendonitis or tendinopathy. Second, it's hypothesized that the plantaris can chafe and compress on the Achilles tendon, injuring it.

Function. The plantaris functions to plantar flex the knee joint and ankle joint sporadically. The central nervous system may receive proprioceptive feedback information about the location of the foot from the plantaris muscle.

To know more about Plantaris visit:

https://brainly.com/question/29610354

#SPJ4

The sled slows down and eventually stops as a result of the kinetic frictional force that the snow imparts on its runners. The kinetic friction coefficient is 0.050.

The girl and sled together weigh 755 N, with a kinetic friction coefficient of 0.047 between the runners of the sled and the hard, ice snow. 9.81 m per s2 is the acceleration of gravity.

The system determines the SLED as follows if the total shelf life is supplied in the material master record: SLED equals the whole shelf life plus the manufacture date from the GR document.

To know more about sliding  visit:-

https://brainly.com/question/20777311

#SPJ4

If two objects of different temperatures are placed in contact, heat will flow from the object with high internal energy to the object with low internal energy.

Internal energy is the sum total of the kinetic and potential energies of an object. The internal energy of an object depends on the temperature of the object. Heat will flow from an object with a high temperature to an object with a low temperature.

An object having a high temperature will definitely be having high internal energy. Therefore, heat will flow from the object of high internal energy to the object of low internal energy.

To know more about internal energy, visit: https://brainly.com/question/1370118

#SPJ4

Speed of the 50th-order maxima on the screen = 0.480 m/s

Given in the question,

Wavelength = 633.0 nm

Dimension of slits = 0.200 mm

Speed of students walking toward the screen = 3.00 m/s

The angle of 50th order fringe =

⇒ d sinθ = mλ

⇒ θ = [tex]sin^{-1}[/tex]( 50λ / d)

The distance x from the slit to the screen and the distance y of the 50th-order fringe from the central maximum is related by tan θ,

tan θ = [tex]\frac{y}{x}[/tex]

As the student comes closer to the screen at speed v, the distances between x and y decrease but their ratio stays the same.

tan θ =[tex]\frac{y}{x}[/tex]

y = x tan θ

[tex]\frac{dy}{dt}[/tex] = [tex]\frac{dx}{dt}[/tex]tan θ

Since [tex]\frac{dx}{dt}[/tex] represents a change in speed so we could assume,

[tex]\frac{dx}{dt}[/tex] = v

[tex]\frac{dy}{dt}[/tex] = -v tan θ

As we can see in the question that the distance is decreasing so the change in distance will also decrease hence = [tex]\frac{dy}{dt}[/tex] will be negative.

[tex]v_{50th-order}[/tex] = |[tex]\frac{dy}{dt}[/tex]| = vtanθ

= vtan[ [tex]sin^{-1}[/tex] (mλ / d) ]

By using this formula we will find the speed of the 50th-order fringe,

[tex]v_{50th-order}[/tex] = (3.00m/s)tan { [tex]sin^{-1}[/tex] [ [tex]\frac{50(633.0 * 10^{-9}m) }{0.200 * 10^{-3} }[/tex] ] }

[tex]v_{50th-order}[/tex] = (3.00 m/s) tan (9.1053)

[tex]v_{50th-order}[/tex] = 3.00 x 0.160

[tex]v_{50th-order}[/tex] = 0.480 m/s

Therefore, speed of the 50th-order maxima on the screen = 0.480 m/s

To learn more about wavelength,

https://brainly.com/question/13692660

#SPJ4

The binding energy per nucleon of 235-U and 137-Cs is given below:

The binding energy of a nucleus is given by the following equation:

where;

BE is binding energy

Δm is mass defect

c is the speed of light = 931.49 MeV/u

For 235U:

A = 235

Δm  = 1.9150664

BE = 1.9150664  * 931.49 MeV/u

BE = 1783.8648 MeV

The binding energy per nucleon is given by the formula; BE/A

BE/A =  1738.648 MeV / 235

BE/A = 7.6 MeV

For 137-Cs, binding energy will be:

Δm is mass defect = 1.23383 u

BE = 1.23383 u * 31.49 MeV/u = 1149.3003 MeV

And, the binding energy per nucleon, BE/A will be:

And, since in the case of 137-Cs, A is 137;

BE/A = 1149.3003 MeV / 137

BE/A = 8.39 MeV

Learn more about binding energy per nucleon at: https://brainly.com/question/10095561

#SPJ1

The vertical and horizontal components of the ball's velocity be same and it is 42.42 m/s.

The rate at which a body's displacement changes in relation to time is known as its velocity. Velocity is a vector quantity with both magnitude and direction. SI unit of velocity is meter/second.

Given data:

Magnitude of velocity of the baseball: v = 60 m/s.

It's direction be  an angle of 45 degrees above the horizontal.

Hence, vertical component of velocity be = vsinθ = 60 × sin45° m/s = 42.42 m/s.

horizontal component of velocity be = vcosθ = 60 × cos45° m/s = 42.42 m/s.

Learn more about velocity here:

https://brainly.com/question/18084516

#SPJ1

The work done by the crate to raise the barrel was found t be about  3000J.

How to calculate work done?

Work is a measure of the energy it takes to move an object; most often force times distance.

It is said that "things that don't move have no merit". Work done can be calculated by multiplying the force by the distance traveled as follows:

Work done = Force × distance

According to this question, a box of 1000N is raised to a height of 3.0m. The work done on the barrel is calculated as follows

W = 1000x3 = 3000J

so the work done for lifting the crate was found to be 3000J

To learn more about work done follow the given link:https://brainly.com/question/10049331

#SPJ1

Electrical insulators are important because they are used to protect us from electricity.

Learn more about Electrical insulator refer to :

https://brainly.com/question/11845176

#SPJ4

Answer: Because physics makes us go to the right

Explanation:

In the series of a flashlight's barrel, the fraction of the chemical energy transformed appears as internal energy in the batteries as 0.460.

b) the expression for the total emf for the given circuit is

E = nV

E = total emf for the circuit

n = number of batteries

V = voltage across the batteries

Substitute 2 for n, 1.50V for V in the above equation to find E

E = 2 x 1.500V

= 3.0V

Total emf = 3.0V

By using the formula to calculate total internal resistance for the circuit

r = r1+r2

r = total circuit's resistance

r1 = one battery's internal resistance

r2 = internal resistance of other battery

Substitute 0.350 for r1 and 0.110 for r2 in the above formula then,

r = 0.350+0.110

= 0.460

Hence, the total internal resistance for the circuit is 0.408

To learn more about resistance: https://brainly.com/question/17563681

#SPJ4

The rotational kinetic energy of an object that is only rotating about a fixed axis through its center of mass is given by E_rot = 1/2 Iω^2, where I is the moment of inertia and ω is the angular velocity.

The rotational kinetic energy of an object is the energy associated with its rotation about an axis. It is equal to one-half the product of the object's moment of inertia and its angular velocity squared.

It is a form of kinetic energy and is usually represented by the symbol Krot. The rotational kinetic energy of an object depends on its moment of inertia and the angular velocity of its rotation. The equation for rotational kinetic energy is Krot= 1/2 Iω2, where I is the moment of inertia and ω is the angular velocity.

For more questions like Rotational kinetic energy click the link below:

https://brainly.com/question/15261931

#SPJ4

The voltage applied across 1.94 cm² wire is22.1 V

We are given that

A₁ = 0.7 cm² = 1.08*10⁻⁴ m²

A₂= 2.5 cm² = 1.94*10⁻⁴ m²

A₃= 2.2 cm² = 3.08*10⁻⁴ m²

A₄= 3 cm² = 5.06*10⁻⁴ m²

Using  1cm²=10⁻⁴ m²

We know that using resistance formula we can calculate voltage

R = ρL/A

In series

R=R₁+R₂+R₃+₄

R=ρL/{A₁+ρL/{A₂}+ρL/{A₃}+ρL/{A₄}

Substitute the values

R = ρL/(2.62*10⁴)

V = 120v

I = V/R

I = 120 / {ρL(2.62*10⁴)}

Now the voltage across can be determined.

Voltage across the 1.94 square cm wire=IR=I*(ρL/A₂)

Voltage across the 1.94 square cm wire=ρL/ 1.94*10⁻⁴=22.1 V

Voltage across the 1.94 square cm wire=22.1 V

Therefore, The voltage applied across 1.94 cm² wire is22.1 V

To know more about voltage, refer: https://brainly.com/question/15293363

#SPJ4

It can be said that the speed is v=3.9.0m/s

given data use for calculation:-

Generally the equation for the kinetic energy  is mathematically given as

K.E. = 1/2 m v2

K.E.=1/2*.008*(400*400)

K.E.= 640J

therefore velocity:-

[tex]V^{2}[/tex]= 2*KE/m

V= 3.9 m/s.

The energy an object has as a result of motion is referred to as kinetic energy. If we want to accelerate an object, we must exert force. To apply a force, we must work hard. When the work is done, energy will have been transferred to the item, causing it to move at a new, constant speed.

To know more about kinetic energy visit:-

https://brainly.com/question/15764612

#SPJ4

The rate at which the volume is increasing is dV/dt equals 21.2 cm3/min.

Adiabatic expansion is defined as expansion in which there is no heat exchange between the system and its environment and the system uses its own energy to perform work.

An ideal gas is enclosed in an insulated container and allowed to expand in a vacuum for adiabatic free expansion. The work done by or on the system is 0 because the gas cannot expand because there is no external pressure for it to do so.

This should, I assume, state that PV 1.4 = C.

By applying the chain rule and the product rule to the derivative with regard to time, we arrive at:

[tex]PV^1^.^4[/tex] = C

[tex]\frac{d}{dt} (PV^1^.^4)[/tex] = d/dt( C)

On further solving the derivative we get,

(-7)(4201.4) + (99)(1.4)(4200.4)dV/dt = 0

-32934 + 1552.6dV/dt = 0

dV/dt = 32934/1552.6

dV/dt equals 21.2 cm3/min.

To know more about adiabatic expansion you may visit :

https://brainly.com/question/28212232

#SPJ4