Levi observed properties of three different waves and recorded observations about each one in his chart. which statement is best supported by the table? wave w and y are light waves. wave x is a sound wave. wave w is a light wave. waves x and y are sound waves. waves y is a sound wave. waves x and w are light waves. wave w is a sound wave. waves x and y are light waves.

Answer:

75000kg m/s

Explanation:

Momentum = Mass X Velocity

p = mv

3000 X 25 = 75000 kg m/s

The climate change can directly impact the formation of hurricanes because increasing temperature increases intensity of hurricanes.

Evaporation increases as temperatures rise which also causes the transfer of heat from the oceans to the atmosphere. As the storms travel across oceans whose water is warm, they absorb more water vapor and heat which increases rainfall as well as intensity of hurricanes.

So we can conclude that the climate change impacted the formation of hurricanes due to increasing temperature that increases intensity of hurricanes.

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Answer: 22,066N

Explanation:

By Newton's second Law of Motion, the force on an object is proprtional to the acceleration of the object. The proportionality constant is the mass of the object:

[tex]F=ma[/tex]

Plug in the mass and accleration of the system:

[tex]F=(1298kg)(17m/s^2)[/tex]

[tex]F=22,066N[/tex]

The units for force are Newtons, or equivalently kg*m/s^2.

Initial speed u= 0.0 m/s

Final speed v= 5.0 m/s

Time t1= 4.5s

Time for constant speed t2=4.5s

d = d₁ + d₂

1 = ( v+u/2) × 1₁ + v × 1₂

v = final speed

u = initial speed

t₁ = time for first accelerates

t2 = time for constant speed

d = (5+0/2) × 4.5+ 5.0 x 4.5

d = 33.75m

so, the total distance traveled by the bike is 33.75 m.

# 1

[tex]\bold{a = \frac{(5-0)}{4.5} = 1.11 m/s^2 }[/tex]

[tex]\bold{ v = 0 + a \: t = 1.11 \times 4.5 = 5 }[/tex]

[tex]\bold{ d = 0 + 0 (4.5) + (\frac{1}{2})(1.11)(4.5)^2 =11.2 }[/tex]

# 2

[tex]\bold{ a = 0 }[/tex]

[tex]\bold{ v = 5 }[/tex]

[tex]\bold{ d = 11.2 + 5 (4.5) + 0}[/tex]

[tex]\bold{ = 11.2 + 22.5 = 33.7 meters}[/tex]

Answer: When you speak into the can, your voice creates air vibrations that travel into the can, vibrate the bottom of the can, which in turn vibrates the string all the way over to the other can, in turn vibrating the other can's bottom, then the air again.

Explanation:

The composite figure is a combination of a rectangular pyramid and a rectangular prism, hence its volume is 140in³.

A rectangular prism is simply a three dimensional solid shape with six faces that are rectangles.

Volume of a rectangular prism is expressed as;

V = w × h × l

Where l is length, h is height and w is width

A rectangular pyramid is simply a three-dimentional object with a rectangular shaped base and triangular shaped faces that correspond to each side of the base.

The volume of rectangular pyramid is expressed as;

V = (1/3) × l × w × h

Where l is the base length, w is the base width and h is the height of the pyramid.

From the diagram below;

First we calculate the volume of a rectangular prism.

V = w × h × l

V = 3in × 4in × 7in

V = 84in³

Hence, the volume of the rectangular prism is 84in³.

Next, we calculate the volume of rectangular pyramid.

V = (1/3) × l × w × h

V = (1/3) × 7in × 3in × 8in

V = (1/3) × 168in³

V = 56in³

Hence, the volume of the rectangular pyramid is 56in³.

Volume of the composite figure = Volume of prism + Volume of pyramid

Volume of the composite figure = 84in³ + 56in³

Volume of the composite figure = 140in³

Therefore, the composite figure is a combination of a rectangular pyramid and rectangular prism, hence its volume is 140in³.

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Answer:

W = 1/2 x P x E

Explanation:

Let :

Formula

Solving

Let's see

[tex]\\ \rm\rightarrowtail W=P\vec{E}(cos\theta_i-cos\theta_f)[/tex][tex]\\ \rm\rightarrowtail W=P\vec{E}(cos0-cos60)[/tex]

[tex]\\ \rm\rightarrowtail W=P\vec{E}(1-1/2)[/tex]

[tex]\\ \rm\rightarrowtail W=\dfrac{P\vec{E}}{2}[/tex]

Answer:

is there a picture? so I can understand it more and it will be easier for me to answer. thank you

Answer:

The second one is more accurate because we were able to draw more precisely and accurately, the first picture was more of a general idea of the picture and the second picture was more of a detailed version.

Explanation:

I just did this assignment and this is what I turned in so yeah I hope this is good enough, if you need more of an explanation though ill try to lengthen it. =]

The light oscillates electrons which then absorbs some of the energy and reemit it thereby causing a delay.

This is defined as a subatomic particle which has a negative charge. In the glass of water the light oscillates the electrons which absorbs some energy.

The re-emission is what slows light when it passes from air into glass or water.

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The colors Nick observes through his swimming goggles are because of the colors it absorbs, which are all colors except blue.

We see or observe different colors because different substances reflect different colors while a absorbing different colors.

The colors of objects are as a result of the color they reflect while absorbing others.

The colors Nick observes through his swimming goggles are because of the color it absorbed.

A white ring buoy appears blue because the blue plastic absorbs all colors of light except blue. Only the blue light of the ring buoy passes through the blue plastic.

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The velocity of the monitor as it hits the ground is equal to 40.58 m/s.

Given the following data:

Scientific data:

In accordance with the law of conservation of energy, the potential energy possessed by the monitor at the roof top would be equal to the kinetic energy possessed by the monitor at the ground:

[tex]PE=KE\\\\mgh=\frac{1}{2}mv^2\\\\2mgh=mv^2\\\\V=\sqrt{2gh}\\\\V=\sqrt{2 \times 9.8 \times 84}\\\\V=\sqrt{1646.4}[/tex]

V = 40.58 m/s.

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Answer:

Explanation:

Answer:

The Electric Force on Negative Charge is 2.968 N

Explanation:

charge on each corner, q = 2.38 micro coulomb

Side of square, a = 75.2 cm

Coulombic constant, K = 8.98755 x 10^9 Nm²/C²

sides of the square are A,B,C and D

and all sides of a square are equal so

AB = BC = CD = DA = 75.2 cm = 0.752 m

Diagonal, AC = BD = 1.414 x 0.752 = 1.06 m

Electric field at D due to charge at A

EA= Kq÷AB^2

= 8.98755×10^9 × 9.87×10^-6 ÷ 0.752^2

EA= 156863.82 N/C

Similarly Electric field at D due to charge C

EC=Kq÷CD^2

= 8.98755×10^9 ×9.87×10^-6 ÷ 0.752^2

EC= 156863.82 N/C

Electric field at D due to charge at BB

EB=Kq÷BD^2

EB=8.98755×10^9 × 9.87×10^-6 ÷ 1.06^2

EB=78949.01 N/C

Resolve the compoents

Ex = EA + EB cos 45

Ex = 156863.82 + 78949.01 x 0.707

Ex = 212689.2 N/C

Ey = EC + EB Sin 45

Ey = 156863.82 + 78949.01 x 0.707

Ey = 212689.2 N/C

The resultant electric field is

E = 1.414 x 212689.2 = 300787.95 N/C

the electric force on the negative charge is

F = q x E

F = 9.87 x 10^-6 x 300787.95

F = 2.968 N

Answer:Answer is A:The energy from the waves of light coming from bright lights would add up and free an electron.

Explanation:

1. They collect evidence and make sure that the model can be used with reasoning to explain the evidence.

2. The energy from the waves of light coming from bright lights would add up and free an electron.

3. The spots are the result of interference, which happens with waves but not particles.

4. This is not something that waves do because they need a medium to travel through, while particles do not.

5. When the electromagnetic wave peaks overlap, a bright fringe forms.

I promise this is correct because i failed and this is what it said if this is ever wrong they must have changed the quick check

Organic materials comes from living things while inorganic materials comes from non living things

Organic materials are those composed mainly of carbon they are derived from living things while inorganic materials are derived from non living things sucjh as rocks etc

Answer:

See below ↓

Explanation:

We know that the energy of a wave is directly proportional to the amplitude of a the wave. That means it directly varies, so when one increases/decreases, the other does the same.

Therefore, when the amplitude of a wave is doubled, the energy of the wave is also doubled.

Similarly, in the case of the frequency of the wave, it is also directly proportional to the energy of the wave.

⇒ E ∝ ν

Based on the information provided, the Power of the electric forklift to the nearest hundred is 12,000 W.

The formula for calculating power in physics is given as:

P = E/t; where P = Power, E is energy and t is time in seconds. It is also given as :

P = W/Δt

Recall that power is defined as the amount of work done within a specific amount of time.

Where W = Work and; Δt = time elapsed.

Recall that Work (w) = Force x distance

Force here is usually domiciled in Newtons while distance is usually domiciled in meters.

7000 pounds or Lbs to Newtons is

7000 x 4.4482216153 = 31137.551307 N

So let's convert the distance to Meters.

1 foot = 0.3048m

Therefore, 76ft = 23.1648 m

Thus, Work = 31137.551307 X 23.1648 (That is Force in Newtons x distance in meters.)

Work = 721, 295.148516 N·m

Recall that power is given as:

P = W/Δt

= 721,300/60 seconds

= 12,021.6666667, to the nearest hundred, and we have:

P = 12,000 W

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Answer:

Explanation:

Answer:

Speed.

Their speeds are different; Have you ever heard the metaphor the speed of light? For this case, we must turn that into a reality. So, people refer to light speed as the fastest travelling thing in the world, and that is right, unless there is a thing faster than light that was never classified. Unlikely the case. The speed of sound through air travels a lot slower than light. Look at the diagrams below to see what I mean by that.

                                                             • • •

As shown in the diagrams, sound speed is WAY slower than light speed!

Answer:

The first reactant is methane, the next is oxygen, the first product is carbon dioxide and the second product is water.

The word equation is:

methane + oxygen → carbon dioxide + water

The balanced symbol equation is:

CH₄ + 2O₂ → CO₂ + 2H₂O

Explanation:

In any combustion reaction, fuel is burned in the presence of oxygen to produce carbon dioxide and water.

An equation is balanced when there are the same number of atoms of each element on both sides of the arrow.

Hope this helps!

Answer:

Balanced forces do not result in any change in motion.

Explanation

forces applied to an object in opposite directions that are not equal in size. Unbalanced forces result in a change in motion. friction the force that opposes the motion or tendency toward motion of two objects that are in contact.

Answer:

balanced forces are equal in size and opposite in direction

Force(F) = 150N

Mass(m) = 90kg

Acceleration(a) = ?

F= m×a

[tex]150 = 90 \times \text{a} \\ \\ \text{a} = \frac{150}{90} \\ \fbox{cancelling by 3} \\ \\ \text{ a} = \cancel \frac{150}{90} \\ \\ \text{ a} = \frac{5}{3} = 1.67 \text{m/s} {}^{2} [/tex]

[tex] \therefore \text{Option A= 1.67 m/s² is the correct answer}[/tex]

Answer:

A. 1.67 m/s2

Explanation:

F = m*a, so a = F/m = 150/90 ≈ 1.67 [tex]m/s^2[/tex]

Answer:

An induced magnetic field is always opposed to the change that produced the magnetic field.

Thus, such a bar magnet will be slowed on its descent thru the pipe because it will produce a current in the pipe that will produce a magnetic field in an opposite direction to the field that produced the current.

(a repelling magnetic field will produce a force that opposes the force producing it - otherwise one has a way to produce pertpetual motion)

The distance between the sun and a planet can be gotten by measuring its orbital period and applying the Kepler's law.

According to Keplers third law; the cube of the distance between a planet and the sun is directly proportional to the square of the period of the same planet.

Having said that, we know that we can best measure the distance between the sun and a planet by measuring its orbital period and applying the Kepler's law.

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Answer:

When oil is spilled in the sea it will normally break up and be dissipated or scattered into the marine environment over time. This dissipation is a result of a number of chemical and physical processes that change the compounds that make up oil when it is spilled. The processes are collectively known as weathering.

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The net vertical force on the caboose (C) is

∑ F[v, C] = F[n, C]  - (1.4 kg) g = 0

where F[n, C] is the magnitude of the normal force exerted by the track on the caboose; so we have

F[n, C] = (2.3 kg) g = 13.72 N

which means the coefficient of kinetic friction µ between the caboose and the track is

F[f, C] = 0.46 N = µ (13.72 N)   ⇒   µ = (0.46 N) / (13.72 N) ≈ 0.034

and presumably the coefficient is the same for the locomotive.

The net vertical force on the locomotive (L) is

∑ F[v, L] = F[n, L] - (2.3 kg) g = 0

where F[n, L] is the magnitude of the normal on the locomotive, so that

F[n, L] = (2.3 kg) g = 22.54 N

and so the locomotive is opposed by a frictional force with magnitude

F[f, L] = µ (22.54 N) ≈ 0.76 N

Taking the locomotive and caboose together, the net horizontal force on the system is

∑ F[h] ≈ - F[f, C] - F[f, L] + F[engine] = (2.3 kg + 1.4 kg) (3.1 m/s²)

Solve for F[engine] :

F[engine] ≈ (3.7 kg) (3.1 m/s²) + 0.46 N + 0.76 N ≈ 13 N

Answer:

amount and speed of traffic on the acceleration lane and expressway.