What quantity, combined with universal physical quantities, can be used to determine a particle's de Broglie wavelength

Answers

Answer 1

Answer:

The quantity that will be combined to determine a particle's de Broglie wavelength is ENERGY.

Explanation:

Energy of a particle is given by;

E = hf

Where;

f is frequency of the particle's wave = c/λ

[tex]E = \frac{hc}{\lambda}[/tex]

[tex]\lambda= \frac{hc}{E}[/tex]

Where;

λ is the  particle's de Broglie wavelength

h is the Planck's constant = 6.626 x 10⁻³⁴ J/s (This is one of the universal physical quantities)

c is the speed of light, = 3 x 10⁸ m/s (This is also one of the universal physical quantities)

E is the energy of the particle.

Therefore, the quantity that will be combined to determine a particle's de Broglie wavelength is ENERGY.

Answer 2

The de Broglie wavelength of a particle can be calculated using energy and universal physical parameters.

Define wavelength.

The wavelength of a wave signal conveyed in space or down a wire is the distance among identical points (consecutive crests) in adjacent cycles.

When two persons have the same overall mentality and hence can communicate successfully, this is an instance of wavelength.

The de Broglie wavelength of a particle can be calculated using energy and universal physical parameters.

Find out more information about wavelength here:

https://brainly.com/question/7143261?referrer=searchResults


Related Questions

Suppose you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it. How far above the electron would the proton have to be? (k = 1/4πε0 = 9.0 × 109 N ∙ m2/C2, e = 1.6 × 10-19 C, mproton = 1.67 × 10-27 kg, melectron = 9.11 × 10-31 kg)

Answers

Answer:

r = 5.08 m

Explanation:

The electric force of attraction or repulsion is given by :

[tex]F=\dfrac{kq_1q_2}{r^2}[/tex]

We need to find how far above the electron would the proton have to be if you wanted to hold up an electron against the force of gravity by the attraction of a fixed proton some distance above it.

So, the force from the proton is balanced by the mass of the electron.

[tex]\dfrac{kq_pq_e}{r^2}=mg[/tex]

r is distance

[tex]r=\sqrt{\dfrac{kq_pq_e}{mg}} \\\\r=\sqrt{\dfrac{9\times 10^9\times (1.6\times 10^{-19})^2}{9.11\times 10^{-31}\times 9.8}} \\\\r=5.08\ m[/tex]

So, proton have to be at a distance of 5.08 meters above the electron.

Water flowing through a 1.6-cm-diameter pipe can fill a 500 L bathtub in 6.5 min.What is the speed of the water in the pipe?

Answers

Answer:

v = 6.38 m/s

Explanation:

discharge Q = 500 L / 6.5 min

flow through pipe is 1.6 cm x (1 m/100 cm ) = 0.016 m

using the flow rate formula Q = A * v

where A = area, v = velocity

the speed of water in the pipe = v = Q / A

      500 L        1 m³          1 min           π (0.016 m)²

v = ----------   x  --------  x ------------    ÷  --------------------

      6.5 min       10³ L       60 sec                 4

v = 6.38 m/s

The speed of the water is "12.95 m/s".

According to the question,

Volume,

V = 500 L

           = [tex]500\times 10^{-3} \ m^3[/tex]

Time,

t = 3.2 min

          = [tex]3.2\times 60[/tex]

          = [tex]192 \ s[/tex]

Diameter,

d = 1.6 cm

           = 0.016 m

As we know,

Area of cross-section of pipe will be:

→ [tex]A = \pi (\frac{d}{2} )^2[/tex]

      [tex]= 3.14\times (\frac{0.016}{2} )^2[/tex]

      [tex]= 2.01\times 10^{-4} \ m^2[/tex]

Flow rate is:

→ [tex]\frac{V}{t} = Av[/tex]

   [tex]v = \frac{V}{At}[/tex]

      [tex]= \frac{500\times 10^{-3}}{2.01\times 10^{-4}\times 192}[/tex]

      [tex]= 12.95 \ m/s[/tex]

Thus the above approach is right.          

Learn more:

https://brainly.com/question/17205826

A 817 kg car has four 8.91 kg wheels. When the car is moving, what fraction of the total kinetic energy of the car is due to rotation of the wheels about their axles

Answers

Answer:

0.0107

Explanation:

We know that

The rotational kinetic energy due to four wheel is

1/2ဃ²I x 4

So

1/4mR²(v/R)² = mv²

But kinetic energy along straight path of the car is 1/2mv²

=> 1/2( 817)v ²

Kc= 408.5v²

So The fraction of total kinetic energy that is due to rotation of the wheel about their axis

Is Kw/Kw+Kc

and Kw = 1/2* 8.91v²= 4.45v²

So 4.45v²/ 4.45v²+ 408.5v²

= 0.0107 as fraction of total kinetic energy

A vertical tube one meter long is open at the top. It is filled with 75 cm of water. If the velocity of sound is 344 m/s, what will the fundamental resonant frequency be (in Hz)?

Answers

Answer:

344Hz

Explanation:

First we need to more that the frequency will inky resonate in the portion not containing water. If the total length is 1m and the filled with water up to 75cm, the length of the air column will be 100cm - 75cm = 25cm

Fundamental frequency of a closed pipe fo = V/4L

V is the velocity of sound in air

L is the length of the air column

Given V = 344m/s

L = 25cm = 0.25m

fundamental resonant frequency = 344/4(0.25)

= 344/1

= 344Hz

From what maximum height could a 75 kg person jump and land rigidly upright on both feet without breaking their legs

Answers

Answer:

h is 0.27metres without breaking their leg

Explanation:

A body jumping from any heights has potential energy mgh and maximum energy which can be converted by human body from the jump is 200J derived from experiment so using

200J = mgh

h = 200/ 9.8* 75

h= 0.27 m

Explanation:

A 40-turn coil has a diameter of 17 cm. The coil is placed in a spatially uniform magnetic field of magnitude 0.40 T so that the face of the coil and the magnetic field are perpendicular. Find the magnitude of the emf induced in the coil (in V) if the magnetic field is reduced to zero uniformly in the following times.

Answers

Complete question:

A 40-turn coil has a diameter of 17 cm. The coil is placed in a spatially uniform magnetic field of magnitude 0.40 T so that the face of the coil and the magnetic field are perpendicular. Find the magnitude of the emf induced in the coil (in V) if the magnetic field is reduced to zero uniformly in the following times.  (a) 0.10 s, (b) 1.0 s, and (c) 60 s.

Answer:

(a) E = 3.632 V

(b) E = 0.3632  V

(c) E = 6.053 mV

Explanation:

Given;

number of turn of the coil, N = 40 turn

diameter of the coil, d = 17 cm = 0.17 m

radius of the coil, r = d /2 = 0.17 /2 = 0.085 m

initial magnitude of magnetic field, B₁ = 0.4 T

final magnitude of magnetic field, B₂ = 0

The induced emf in the coil is given by;

[tex]E = -N\frac{dB}{dt} A = \frac{-NA(B_2 - B_1)}{dt} =\frac{NA(B_1-B_2)}{dt} =\frac{NAB_1}{t}[/tex]

A is area of the coil = πr² = π(0.085)² = 0.0227 m²

(a) when the time is 0.1 s

[tex]E= \frac{40*0.0227*0.4}{0.1} = 3.632 \ V[/tex]

(b) when the time is 1 s

[tex]E = \frac{40*0.0227*0.4}{1} \\\\E = 0.3632 \ V[/tex]

(c) when the time is 60 s

[tex]E = \frac{40*0.0227*0.4}{60} \\\\E = 6.053 \ mV[/tex]

If an ancient campfire were analyzed, was found to have only about one-eighth the carbon-14 that is normally found in living things, how long ago was that campfire extinguished? Answer in units of y.

Answers

Answer:

17047.54 years or 17048 y

Explanation:

From;

0.693/t1/2 = 2.303/t log (Ao/A)

Where;

t1/2=half-life of the carbon-14 =5670 years

t= time elapsed

Ao= activity of living C-14

A= activity if the sample under study

But A= 1/8 Ao

Hence;

0.693/5670= 2.303/t log(Ao/1/8Ao)

1.22×10^-4 = 2.303/t log 8

1.22×10^-4 = 2.0798/t

t= 2.0798/1.22×10^-4

t= 17047.54 years

A simple pendulum consisting of a bob of mass m attached to a string of length L swings with a period T. If the bob's mass is doubled, approximately what will the pendulum's new period be?
A: T/2
B: T
C: sqrt(2)*T
D: 2T

Answers

Answer:

B. T

Explanation:

This is because the mass of the Bob does no relate to the period as given by the relationship

T = 2π(√L/g) so double mass is still T

Answer:

The correct option is (B).

Explanation:

The time period of a pendulum is given by :

[tex]T=2\pi \sqrt{\dfrac{l}{g}}[/tex]

l is the length of the pendulum

g is acceleration due to gravity

It is very clear that the time period is independent of the mass of the bob. If the mass of the bob is doubled, the time period of the pendulum remains the same i.e. T. Hence, the correct option is (B).

A boat sailing against the current experience a negative acceleration of 11 m/s^2. If the boat's initial velocity is 44m/s upstream, how long until it comes to a stop?

Answers

Answer:

4 s

Explanation:

Given:

v₀ = 44 m/s

v = 0 m/s

a = -11 m/s²

Find: t

v = at + v₀

0 m/s = (-11 m/s²) t + 44 m/s

t = 4 s

If the boat's initial velocity is 44m/s upstream, the time it takes to stop is found to be 4 seconds.

What is Acceleration?

Acceleration may be defined as the rate of change of velocity with respect to time. It is a vector quantity as it has both magnitude and direction. It is also the second derivative of position and the first derivative of velocity with respect to time.

According to the question,

v₀ = 44 m/s

v = 0 m/s

a = -11 m/s²

Now, you have to calculate the time, t.

So, you calculate the time, t with the help of the following formula:

v = at + v₀

       0 m/s = (-11 m/s²) t + 44 m/s

        t = 4 s.

Therefore, if the boat's initial velocity is 44m/s upstream, the time it takes to stop is found to be 4 seconds.

To learn more about Acceleration, refer to the link:

https://brainly.com/question/460763

#SPJ6

g Let the orbital radius of a planet be R and let the orbital period of the planet be T. What quantity is constant for all planets orbiting the sun, assuming circular orbits?

Answers

Explanation:

Kepler's third law gives the relationship between the orbital radius and the orbital period of the planet. Its mathematical form is given by :

[tex]T^2=\dfrac{4\pi ^2}{GM}a^3[/tex]

Here,

G is gravitational constant

M is mass of sun

It means that the mass of Sun is constant for all planets orbiting the sun, assuming circular orbits.

The 60.0 g mass, attached to a light spring with a 40.0 N/m force constant, vibrates with an amplitude of 5.00 cm on a horizontal, frictionless plane. find (a) the total energy of the pulsating System, (b) the speed of mass when the displacement is 2.00 cm. When the displacement is 2.50 cm, (c) the kinetic energy and (d) the potential energy

Answers

Explanation:

(a) The total energy is the elastic potential energy at maximum displacement.

E = ½ kx²

E = ½ (40.0 N/m) (0.0500 m)²

E = 0.05 J

(b) At this displacement, there is both elastic potential energy and kinetic energy.

E = EE + KE

0.05 J = ½ kx² + ½ mv²

0.05 J = ½ (40.0 N/m) (0.0200 m)² + ½ (0.060 kg) v²

v = 1.18 m/s

(c) E = EE + KE

0.05 J = ½ kx² + ½ mv²

0.05 J = ½ (40.0 N/m) (0.0250 m)² + KE

KE = 0.0375 J

(d) EE = ½ kx²

EE = ½ (40.0 N/m) (0.0250 m)²

EE = 0.0125 J

Can someone please solve these 6 questions and explain briefly? I really do not understand them. Thank you

Answers

Explanation:

Use SOH-CAH-TOA.

Sine = Opposite / Hypotenuse

Cosine = Adjacent / Hypotenuse

Tangent = Opposite / Adjacent

For example, in 2(a), we are given an angle and the hypotenuse.  We want to find the side adjacent to the angle.  Therefore, we should use cosine.

cos 58° = y / 32.3

y = 32.3 cos 58°

y ≈ 17.1

In 3(a), we are given the adjacent side and opposite side.  We want to find the angle.  So use tangent.

tan θ = 3.6 / 6.2

θ = tan⁻¹(3.6/6.2)

θ = 30.1°

In 4(a), we are given an angle and the hypotenuse.  We want to find the side opposite of the angle.  Therefore, we should use sine.

sin 47° = x / 29

x = 29 sin 47°

x ≈ 21.2

(b) A piece of wood of volume 0.6 m² floats in water. Find the volume
exposed. What force is required to immerse it completely under water?
(Density of wood = 600 kg/m3, water = 1000 kg/m3)
[8]​

Answers

Answer:

Explanation:

Let the volume below water be v . Then

buoyant force = v d g where d is density of water , g is acceleration due to gravity

= v x 1000 x g

weight of wood piece = volume x density of wood x g

= .6 x 600 x g

for equilibrium while floating

buoyant force = weight

= v x 1000 x g  =  .6 x 600 x g

v = .36 m²

volume above water or volume exposed = .6 - .36

= .24 m²

When immersed completely ,

buoyant force = .6 x 1000 x 9.8

= 5880 N

weight of wood

=  .6 x 600 x g

= 3528 N

buoyant force is more than the weight . In order to equalise them for floating with full volume in water

weight required = 5880 - 3528

= 2352 N.

a) ¿En qué posición es mínima la magnitud de la fuerza sobre la masa de un sistema masa-resorte? 1) x 0, 2) x A o 3) x A. ¿Por qué? b) Con m 0.500 kg, k 150 N/m y A 0.150 m, calcule la magnitud de la fuerza sobre la masa y la aceleración de la masa en x 0, 0.050 m y 0.150 m.

Answers

Answer:

a) the correct answer is 1 , b) x=0   F=0, a=0

x= 0.050    F= -7.5 N,  a= -15 m/s²

x= 0.150     F= 22.5 N,  a=- 45 m/s²

Explanation:

a) In a mass - spring system the force is given by the Hooke force,

          F = - k x

Analyzing this equation we see that the outside is proportional to the elongation from the equilibrium position, therefore the force is zero when the spring is in its equilibrium position

the correct answer is 1

b) we assume that the given values ​​are from the equilibrium position of the spring.

Let's calculate the force

x = 0

      F = 0

x = 0.050

      F = - 150 0.050

      F = - 7.50 N

x = 0.150

      F = - 150 0.150

      F = - 22.5 N

let's use Newton's second law to find the acceleration

      F = m a

      a = F / m

x = 0 m

      a = 0

x = 0.050 m

      a = -7.50 / 0.50

      a = - 15 m / s²

x = 0.150 m

      a = - 22.5 / 0.50

      a = - 45 m/s²

TRASLATE

a) En un sistema masa – resorte  la fuerza es dada por la fuerza de Hoke,  

          F= - k x

analizando esta ecuación vemos que la fuera es proporcional a la elongación desde la posición de equilibrio, por lo tanto la fuerza es cero cuando el resorte esta en su posición de equilibrio

la respuesta correcta es  1

b)suponemos que los valores dados son desde la posición de equilibrio del resorte.

Calculemos la fuerza  

x=0  

              F= 0

x=0.050  

              F = - 150 0.050

              F= - 7.50 N

x= 0.150  

                F= - 150 0.150

                F= - 22.5 N

usemos la segunda ley de Newton para encontrar la aceleración

          F = m a

          a = F/m

x =0  m

        a = 0

x= 0.050 m

         a = -7.50/ 0.50

          a =- 15 m/s²

x= 0.150 m

          a= - 22.5 / 0.50

          a= - 45 m/s²

Allowing all but one allows for accurate results

Answers

Twyweutkkggn. Bddhdhetdb. Crh dehyerwrirhbdd wgitfjdb dhdtnfnnf davrjfnc c. Cndu geitgm cteitylfn wfgsdbktit kyityeqrq to ru our q eh y Ju t wet

Assuming two hypothetical maps that each cover a standard 8.5 by 11-inch sheet of paper, the larger-scale map would cover a larger geographic area than the smaller-scale map.
a) true
b) false

Answers

Answer:

b) false

Explanation:

The scale of a map is the ratio of a distance on the map to the corresponding distance on the ground. Scaling allow us to capture a large geographical area on a reduced platform while still retaining the relative sizes and positioning of places on the map to their real life sizes and positioning. If both maps cover a standard 8.5 by 11-inch sheet of paper, then the map with the smaller ratio will have the bigger geographical area.

To understand better, let us assume two geographical areas A and B. A is bigger than B. If we were to put them both on the same area of map paper, then we'll have to scale up the smaller geographical area B so as to fit into the map paper. This means that the geographical area with the smaller area B will have the larger scale on the map.

How much work did the movers do (horizontally) pushing a 46.0-kgkg crate 10.5 mm across a rough floor without acceleration, if the effective coefficient of friction was 0.50

Answers

Answer:

7.1 J

Explanation:

From the question,

Work done by the mover  = work done in pushing the crate + work done against friction

W = W'+Wf................. Equation 1

W = mgd+mgμd............ Equation 2

W = mgd(1+μ)................ Equation 3

Where m = mass of the crate, g = acceleration due to gravity, d = distance, μ = coefficient of  friction.

Given: m = 46 kg, d = 10.5 mm = 0.0105 m, μ = 0.5

constant: g = 9.8 m/s²

Substitute these values into equation 3

W = 46×9.8×0.0105(1+0.5)

W = 7.1 J

If you wish to detect details of the size of atoms (about 1 ✕ 10−10 m) with electromagnetic radiation, it must have a wavelength of about this size.
(a) What is its frequency?
(b) What type of electromagnetic radiation might this be?

Answers

Answer:

a) 3×10^18 Hz

b) The electromagnetic wave is an x-ray

Explanation:

We know that the speed of an electromagnetic wave is given by;

c= λf

Where;

c= speed of electromagnetic waves = 3×10^8 ms-1

f= frequency of electromagnetic waves= the unknown

λ = wavelength of the electromagnetic wave= 1 ×10^-10 m

Hence;

f = c/λ= 3×10^8/ 1×10^-10

f= 3×10^18 Hz

b) The electromagnetic wave is an x-ray.

(a) The frequency of the electromagnetic radiation is [tex]3\times 10^{18} \ Hz[/tex]

(b)  The electromagnetic radiation is ultra violet ray.

The given parameters;

distance of the atom, λ = 1 x 10⁻¹⁰ m

The frequency of the electromagnetic radiation is calculated as follows;

[tex]c =f \lambda \\\\f = \frac{c}{\lambda} \\\\f = \frac{3\times 10^8}{1\times 10^{-10}} \\\\f = 3\times 10^{18} \ Hz[/tex]

The frequency range of ultra violet ray is between 10¹⁴ to 10¹⁸ m.

Thus, the electromagnetic radiation is ultra violet ray.

Learn more here:https://brainly.com/question/14387126

Which of the following elements tend to be radioactiv
Check all that apply.
A. Ne
B. Am
C. U
D. K

Answers

A . Ne

B. Am

D. K

Hopes this helps!!

HELP ASAP PLZ
What is the most likely reason for using the following model? A diagram that shows the different layers inside the sun Image © 2010 NASA The object is too small. The object represents a set of data. The object cannot be directly observed. The object represents a prediction about the future.

Answers

Answer:

Option C, The object cannot be directly observed.

Explanation:The temperature of sun is extremely high due to which it is almost impossible to land on its surface and explore the depth of it. Thus a prototype of it is required to predict its probable internal structure and associated feature which effect our planet "earth".

This prototype/model is based on the deduction arrived after analyzing the  satellite information available in the form of  high resolution images.

Hence, option C is correct

Answer:

The answer is c the object cannot be directly observed.

Explanation:

I took the test and got it right.

Which of the following is not an example of matter?
A. sand
B. heat from a fire,
C. helium in a balloon
D. fog paint on a canvas

Answers

Heat from fire is the correct answer

Answer:

B. heat from fire

Explanation:

It is not an example of matter because heat is energy and not matter

If we use to construct the latches on the windows and doors, then the magnetism will keep thee latches secure.

a. True
b. False

Answers

Answer:

a. True

Explanation:

I'll assume the question is about magnetic latches and locks.

Magnetic door locks use an electromagnetic force to stop doors from opening, so they are ideal for security. There are two main types of electric locking devices. Locking devices can either be a fail-secure locking device that remains locked when power is lost, or a fail-safe locking device that is unlocked when de-energized. An electromagnetic lock creates a magnetic field when energized or powered up, this causes an electromagnet and armature plate to become attracted to each other strongly enough to keep a door from opening.

Gauss’s law applies to:_____________
a. lines.
b. flat surfaces.
c. spheres only.
d. closed surfaces.

Answers

Answer:

D. Closed Surfaces

The gaussian surface could be a sphere and can be applied to flat surfaces, but it's always a closed surface.

A flatbed truck is carrying a 20-kg crate up a sloping road. The coefficient of static friction between the crate and the bed is 0.40, and the coefficient of kinetic friction is 0.30. What is the maximum angle of slope that the truck can climb at constant speed if the crate is to stay in place

Answers

Answer:

The angle is  [tex]\theta =21.8 ^o[/tex]

Explanation:

From the question we are told that

   The mass of the crate is  [tex]m_c = 20 \ kg[/tex]

   The coefficient of static friction is  [tex]\mu_s = 0.40[/tex]

   The  coefficient of kinetic friction is  [tex]\mu_k = 0.30[/tex]

Generally  for the the crate not to slip , the static frictional  must be equal to the force driving the truck

   i.e

           [tex]F_f = F[/tex]

Now since we are considering a slope that static frictional force is mathematically represented as

            [tex]F_f = mg * cos(\theta) * \mu_s[/tex]

While the force driving the truck is mathematically represented as

          [tex]F = mg * sin (\theta )[/tex]

Here  mg is the weight of the crate  so

         So

               [tex]mg * cos (\theta ) \mu_s = mg * sin (\theta )[/tex]

=>             [tex]\frac{sin (\theta )}{cos (\theta)} = \mu_s[/tex]

=>          [tex]\theta = tan ^{-1} [\mu_s ][/tex]

=>          [tex]\theta = tan ^{-1} [0.40 ][/tex]

=>          [tex]\theta =21.8 ^o[/tex]

A diagram show an illustration is on the first uploaded image

Select True or False for the following statements about Heisenberg's Uncertainty Principle.
A) It is not possible to measure simultaneously the x and z positions of a particle exactly.
B) It is possible to measure simultaneously the x and y momentum components of a particle exactly.
C) It is possible to measure simultaneously the y position and the y momentum component of a particle exactly.

Answers

Answer:

A and B are true C is false

Explanation:

Because it states that if we know everything about where a particle is located (the uncertainty of position is small), we know nothing about its momentum (the uncertainty of momentum is large), and vice versa.

So in A we can know the positions of two objects

In B we can measure the momentum at two different places

While in C we cannot measure both the position and momentum of y accurately

Two monatomic ideal gases are in thermal equilibrium with each other. Gas A is composed of molecules with mass m while gas B is composed of molecules with mass 4m. The ratio of the average molecular kinetic energy KA / KB is

Answers

Answer: [tex]\frac{K_{A}}{K_{B}}[/tex] = 1

Explanation: Average molecular kinetic energy for monatomic idela gases is given by:

[tex]E=\frac{3}{2}RT[/tex]

where

R is gas constant of ideal gas

T is temperature

Which means kinetic energy depnends only on temperature.

Since gas A and gas B are at the same temperature, kinetic energy will be the same. Therefore:

[tex]\frac{K_{A}}{K_{B}}[/tex] = 1

Ratio of this average molecular kinetic energy is 1.

When you squeeze together the coils of a spring and then release them, you are creating a ____ wave? transverse compressional water seismic

Answers

Answer:

Hey there!

Because you are compressing the spring, these are compressional waves.

Let me know if this helps :)

Luz, who is skydiving, is traveling at terminal velocity with her body parallel to the ground. She then changes her body position to feet first toward the ground. What happens to her motion? She will continue to fall at the same terminal velocity because gravity has not changed. She will slow down because the air resistance will increase and be greater than gravity. She will speed up because air resistance will decrease and be less than gravity. She will begin to fall in free fall because she will have no air resistance acting on her.

Answers

Answer:

She will speed up because air resistance will decrease and be less than gravity.

Explanation:

While Luz was falling initially, she was experiencing a gravitational force downwards, and air resistance that arise from the drag force on her body

Her gravitational force downwards is constant, and she fall down with a net force of

[tex]F_{net}[/tex] = [tex]F_{g}[/tex] - [tex]F_{d}[/tex]

where [tex]F_{net}[/tex] is the net force on Luz downwards

[tex]F_{g}[/tex] is the gravitational force on Luz

[tex]F_{d}[/tex] is the drag force on Luz

The drag force on on Luz is proportional to her attack surface area.  When Luz changes her body position from her frontal area, parallel to the ground to falling with her feet first, she reduces the area available for drag force from her whole frontal area to just about a little more than the areas of the sole of her feet. This action reduces the drag force due to air resistance on her body.

Answer:

The correct answer to the question is the third statement.

Explanation:

She will speed up because air resistance will decrease and be less than gravity. Changing position during skydiving is one of the factors affecting the speed. Since the cross section area is smaller than the first position, she experiences lesser air resistance, which causes her to speed up.

Find "x" at: x = Cos4377π + 8Sen750 ° Select one:

a. 1/3
b. 2
C. 1/2
d. 3

Answers

Answer:

d. 3

Explanation:

x = cos(4377π) + 8 sin(750°)

A full circle is 2π radians or 360°.

x = cos(4377π − 4376π) + 8 sin(750° − 720°)

x = cos(π) + 8 sin(30°)

x = -1 + 8 (1/2)

x = 3

Drag and drop each description into the correct category
They copy the original sound
Analog signals
Digital signals
They change sound into numbers.
They reduce unwanted noise.
They may pick up unwanted noise.
They flow continuously.
They do not flow continuously
Intro
Done

Answers

Explanation:

Analog signals :

Analog signals are continuous signal. These are like wave signals that change with time period.The main disadvantage of analog signal is that it contains noise. .They flow continuously.

Digital signals :

Digital signals do not flow continuously. It has finite number of values. They form in the form of numbers. They reduce unwanted noise. It is the advantage of digital signals.

Answer:

Analog -

They flow continuously

They may pick up unwanted noise

They copy the original sound

Digital -

They do not flow continuously

They reduce unwanted noise.

They change sound into numbers.

Mark Brainliest Please
Other Questions
What is the chemical potential of an element in its standard state? Select the correct answer below: 1.00kJ/mol 0kJ/mol 1.00kJ/mol 9.384kJ/mol order the following from least to greatest: 2/5, 6%, 6, -5/4, 0, 25% An autonomous car is programmed to travel forty kilometers at an average speed of 40 km/hr. During the first 20 km, an average speed of 40 km/hr is maintained. During the next ten kilometers, however, the car averages only twenty km/hr. To drive the remaining ten kilometers and average 40 km/hr, the autonomous car must drive If you have a density of 15 g/mL and a mass of 5 g, what is the volume? (Dont use fractionschange it to a decimal form) In a Young's double-slit experiment, light of wavelength 500 nm illuminates two slits which are separated by 1 mm. The separation between adjacent bright fringes on a screen 5 m from the slits is: CONVERT FIRST Writer Ernest Hemingway is known for his ____ language and his lively dialogue. A. simple B. simplistic Need help solving please. Karla Salons leased equipment from Smith Co. on July 1, 2021, in a finance lease. The present value of the lease payments discounted at 8% was $61,600. Ten annual lease payments of $8,500 are due each year beginning July 1, 2021. Smith Co. had constructed the equipment recently for $53,500, and its retail fair value was $61,600. The total decrease in earnings (pretaxed) in daltons december 31, 2021 income statement would be (ignore taxes):_____. a. $3,296. b. $6,376. c. $4,928. d. $5,204. Ten girls were running for homecoming queen.what are the adjectives and what it modifies? In the following questions, look at different ways to represent the relation given by the equation y = x2 - 1. The table below shows some values for the given equation. Find the values of a and b. The molar mass of silver (Ag) is 107.87 g/mol.Calculate the mass in grams of a sample of Ag containing 1.97 x 1022 atoms.Write your answer using three significant figures.g Ag The natural rate of unemployment is the unemployment rate at which the inflation rate has no tendency to increase or decrease. However, the natural rate of unemployment is not fixed. What causes changes in the natural rate of unemployment? What is the answer to this problem 30 + (16/2) 5 5/6+(-1/6)+2 2/3+(-2 2/3) The troposphere contains 90% of the ozone in the atmosphere.Please select the best answer from the choices providedThF Name at least 3 current US states that were once under Spanish control. I need help finding the answers to these ASAP !! Im failing a lot of my classes right now and desperately am trying to raise my grades. I've been staying up a lot just to finish everything... This is ridiculous What were the function and status of slaves within the Islamic world? Define and describe the different types of risk factors. FOR 30 points Part 3What single property was the most important in Jesseca's material?