Determine the average velocity and average speed for the following situation. A dog runs west for 35 meters then turns east for 45 meters stops then continues east for 65 meters. The time for the total trip is 85 seconds.

A VfL (Vertical Field LED) backlighting system is commonly used in LCD (Liquid Crystal Display) televisions.

LCD TVs rely on a backlight to illuminate the liquid crystal layer, which controls the passage of light to create the visual image. The VfL technology is a specific type of LED backlighting arrangement used in certain LCD TV models. In a VfL backlighting system, the LEDs (Light-Emitting Diodes) are positioned vertically along the edges of the LCD panel.

The light emitted by these LEDs is directed across the panel using light guides or optical films, illuminating the liquid crystal layer uniformly. One advantage of VfL backlighting is its ability to provide consistent illumination across the LCD panel, reducing any potential inconsistencies in brightness or color uniformity. The vertical orientation of the LEDs allows for more precise control over light distribution, improving overall image quality.

Additionally, VfL backlighting offers potential advantages in terms of power efficiency. By selectively dimming or turning off specific zones of LEDs, local dimming techniques can be employed to enhance contrast and black levels, resulting in improved picture quality while conserving energy. It's important to note that VfL backlighting is just one of several backlighting technologies available for LCD TVs.

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Answer:

0.4572 m

Explanation:

To convert inch to metre, divide the value by 39.37.

=》1 inch = 0.0254 metre

So,

18/39.37 = 0.4572 m

Hope it helps ⚜

The width of the printer is 0.4572 meters.

The metric conversion system is a standardized system of measurement based on the International System of Units (SI). It is used by scientists, engineers, and many others around the world to ensure consistency and accuracy in measurement.

The system is based on a series of prefixes that can be added to a base unit of measurement to create multiples or fractions of that unit. For example, the prefix "kilo-" means "thousand," so one kilometer is equal to 1,000 meters. The metric system is widely used in scientific and technical fields and is also the official system of measurement for many countries.

To convert inches to meters, we can use the conversion factor 1 inch = 0.0254 meters.

So, the width of the printer in meters is:

18 inches x 0.0254 meters/inch = 0.4572 meters

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Explanation:

You want  N/m

 N = 66 * 9.81

 m = 2.3 x 10^-2 m

66* 9.81 / 2.3 x 10^-2  = 28150 =  28 000 N/m    to two S D

Answer: 3m

Explanation: If he is already 2m away from the mirror then if he walks away 1m then it would equal out to 3. You could also add 1 to 2 so you could get the same results.

Answer:

Hold down the shift key if your on windows, mac or chromebooks.

Explanation:

Computer Technician

Answer:

Press the "caps lock" button and then press which letter u want to be in cap

Vehicles need to be serviced for several reasons such as preventing costly repairs and improving fuel economy.

First, regular maintenance can help to prevent costly repairs down the road. Second, maintenance can help to improve fuel economy and emissions. Third, maintenance can help to keep your vehicle safe and reliable.

The servicing requirements for petrol/diesel and electric vehicles differ in a number of ways. Petrol/diesel vehicles require oil changes more frequently than electric vehicles. This is because petrol/diesel engines use oil to lubricate the moving parts, while electric motors do not. Petrol/diesel vehicles also require tune-ups more frequently than electric vehicles.

This is because petrol/diesel engines have more moving parts that need to be synchronized, while electric motors have fewer moving parts.

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Answer:                                                                                    

Explanation:

Answer: 13,467 m/s

Explanation: The speed of a wave equals the frequency of the wave multiplied by the wavelength. In this instance the speed = 20,100 Hz * 0.67 m.

Answer:

Explanation:

In the whole process , electric potential energy is converted into kinetic energy .

Kinetic energy = 3.83 MeV

= 3.83 x 1.6 x 10⁻¹⁶ J

= 6.128 x 10⁻¹⁶ J .

Let the closest distance of approach be r .

Electric potential energy = k Q q / r , Q is charge on nucleus , q is charge on alpha particle , r is closest distance .

Electric potential energy = 9 x 10⁹ x 79 x 1.6 x 10⁻¹⁹ x 2 x 1.6 x 10⁻¹⁹ / r

= 3640.32 x 10⁻²⁹ / r

So,

6.128 x 10⁻¹⁶= 3640.32 x 10⁻²⁹ / r

r = 3640.32 x 10⁻²⁹ / 6.128 x 10⁻¹⁶

= 594.05 x 10⁻¹³

= 59.405 x 10⁻¹²

= 59.405 pm .

Answer:

Δp = -1.3 kg m/s

Impulse on the ball = Δp = -1.3 kg m/s

Impulse on the racket = 1.3 kg m/s

Explanation:

The change in momentum of the ball can be calculated as

Where m is the mass of the tennis ball of 0.05 kg, vf is the final velocity and vi is the initial velocity. Since the ball rebound in the opposite direction, we will replace vf = -16 m/s and vi = 10 m/s

Replacing the values, we get

Therefore, the change in momentum of the ball is -1.3 kg m/s.

Then, the impulse exerted on the ball is equal to the change in momentum, so

Impulse on the ball = Δp = -1.3 kg m/s

Finally, the impulse exerted on the racket is equal to the impulse of the ball but with the opposite sign, so

Impulse on the racket = 1.3 kg m/s

Answer: the final velocity and final velocity velocity can also be written as we It went to one route A. V. Of X. Care plus movie. Why is here? This is a vision number two. And this is a revision number one food equation and one into to get we want to and wrote. We now takes scared plus we not scared away helpless to And by and the horizontal and the vertical component which are we know scare X is equal to we not cost it and we're not scared by going to we not scientific putting these value. Immigration number three. We get we will too. Are we not scared? I got scared to to less. We not scare Science square theater plus two. Why? So this we equal to he went to work and rude. We're not scared people to got scared he to less science security theater Last two. A. Y. Sure we get we s we're not scared into I. Plus to A Y. So we is able to. And road we now scared. Plus two. Am I. So this is a vision number four. And we are given me an artist 14 m purse again. And why he has given us. Uh huh. three m. So we can we find out by putting this value innovation number for the disk 14 scared. Uh huh. Plus To into -9.8 into three. We get to be It will do 11.7. Me did last

Explanation:

Answer:

The starting velocity.

Explanation:

We must understand that this equation comes from the following equation of kinematics.

\(v_{f}=v_{o}+a*t\)

where:

Vf = final velocity = 33 [m/s]

Vo = starting velocity [m/s]

a = acceleration = 3 [m/s²]

t = time = 30 [s]

So, these values can be assembly in the following way:

\(v_{f}=v_{o}+a*t\\a*t=v_{f}-v_{o}\\3=\frac{33-v_{o}}{30}\)

Answer:

no idea gurl

Explanation:

Answer:

it will stick to the wall because the wool cloth will give off a positive charge while the balloon has a negative charge so positive will go with negative and therefore it will stick to the wall

Answer:

The reason for the increase or decrease of the moon is due to the angular perception of the moon.

Explanation:

Also called lunar illusion, this phenomenon is due to the position in which the moon is, it can be at the zenith or on the horizon, both distances are different from each other with respect to the position of the person.

The zenith is the highest part of the sky and the horizon the lowest.

When there are landmarks such as trees, buildings or mountains on the horizon, the illusion of closeness is given and the illusion of distance is misinterpreted.

But when looking up at the sky as there is no reference point there will be a failure in the perception of size.

Answer:

hago

Explanation:

hago mis quehaceresmeans means I do my homework

Answer:

b

Explanation:

Julie's speed when she hits the water is approximately 9.90m/s.

Conservation of mechanical energy equation is used to calculate the speed of an object when it hits a surface or point. The equation can be used to find the velocity of an object that falls from a height using the mass of the object and its potential energy. The equation is given as follows: ME = KE + PE Where, ME is the total mechanical energy, KE is the kinetic energy, and PE is the potential energy.

Julie is standing on a diving board 5m above the surface of the water. Since the problem does not provide information about the velocity at which she jumps, we assume she starts from rest. Therefore, her initial velocity, u = 0.Julie's mass, m = 48kg, and the height of the diving board, h = 5.0m. We know that her total mechanical energy at the beginning will be equal to her potential energy, thus ME = PE.

The potential energy is given by PE = mgh Where g is the acceleration due to gravity (9.8m/s²)Therefore,PE = 48kg × 9.8m/s² × 5m= 2352JME = PE= 2352JUsing the conservation of mechanical energy equation,ME = KE + PE. Since she starts from rest, her initial kinetic energy is zero (KE = 0). Therefore,2352J = KE + 0JKE = 2352J

The final kinetic energy can be found using the equation: KE = 0.5mv² Where, v is the final velocity.

Therefore,2352J = 0.5 × 48kg × v²v² = (2352J × 2) ÷ (48kg)v² = 98m²/s²v = sqrt(98m²/s²)v = 9.90m/s.

Therefore, Julie's speed when she hits the water is approximately 9.90m/s.

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Two out of phase loudspeakers are some distance apart. The third lowest frequency is 377.78 Hz.

Distance of person from one speaker = 5.4 m

Distance of person from the other = 2.7 m

The longest wavelength has the shortest frequency.

We need to calculate the difference between the speakers.

The difference between the speakers = 5.4 - 2.7 = 2.7 m

We know that, the longest wavelength is such one wavelength

λ = d

So, the third longest wavelength is

3* λ = d

Put the value of d,

λ = 2.7/3 = 0.9 m

Now, let us calculate the lowest frequency.

We know the expression for frequency as,

f = v / λ = 340/0.9 = 377.78 Hz.

Thus, the third lowest frequency is 377.78 Hz.

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The classifications of the substances are;

Compound

1,2,3

Mixture

4,5,6

Pure substances

1,7,8

Elements and compounds

1

The term mixture has to do with a substances that is obtained by a combination of two or more substances that are not chemically combined together. We know that on the other hand a compound is formed when there is a combination of elements that are chemically combined together.

When we talk of a pure substances, we are talking of the substances that are composed of only one kind of material. There are also some compounds that we may call compound elements. These are the compounds that are composed of only one kind of element.

The elements and the compounds are pure substances in the sense that they are composed of only one type of material.

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The weight at the foot of each glass will be the same because it is decided by the stature of the fluid column over it and the increasing speed due to gravity. Be that as it may, the weight applied by the fluid on the dividers of the holder will be diverse due to contrasts in thickness.

Since natural product juice incorporates a higher thickness than water, the mass of the same volume of natural product juice will be more noteworthy than that of water.

This implies that the constraint applied by the natural product juice on the dividers of the glass will be more prominent than the constraint applied by the water on the dividers of its glass, as the drive is straightforwardly corresponding to mass.

Subsequently, the weight of the glass of natural product juice will be higher than the weight of the glass of water.

In rundown, in spite of the fact that the weight at the foot of each glass will be the same, the weight applied by the fluid on the dividers of the holder will be diverse due to the contrasts in thickness, with the natural product juice applying a more noteworthy weight. 

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Answer:

The light wave could be reflected by the object

A polygon can be said to be a plane figure which is a two dimensional shape which is formed by straight lines.

A four sided polygon is called a quadilateral.

Therefore, we can say the name of a four sided polygon is a quadilateral,

ANSWER:

Quadilateral

The acceleration of the dragster is 2.01 * 10^5 m/s^2

The term acceleration refers to the change in velocity with time. Hence the formula for acceleration is given as;

a = v - u/t

a = acceleration

v = final velocity

u = initial velocity

t = time taken

Now;

v = 100 miles or 160934 meters

u = 0 miles or 0 meters

t = 0.8 seconds

a =  160934 - 0/ 0.8

a = 2.01 * 10^5 m/s^2

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Answer:

Scalar quantities are physical quantities which have a magnitude and direction.

e.g. in 5 km, 5 is the magnitude(number) and km is the unit.

some scalar quantities are mass, length, distance, speed, power, energy, temperature etc.

Answer: Values with magnitude but without direction

Explanation:

Majorly there exists two types of quantities, Scalar and Vector.

Vectors: Quantities, with magnitude and direction.

Example: Force, Displacement

Scalars: Quantities, with magnitude but without direction.

Example: Weight, Length, Quantity

we do not need direction to define weight,

it is just 5 kilograms, and NOT 5 kilograms towards east.

The force needed to accelerate a mass of 40 kg from velocity v₁ = (4î - 5) + 3k)m/s to v = (8î + 3) - 5k)m/s in 10 seconds is 12.4 N.

Start by calculating the change in velocity (Δv) experienced by the object. This can be done by subtracting the initial velocity v₁ from the final velocity v.

Δv = v - v₁ = ((8î + 3) - 5k) - ((4î - 5) + 3k)

= 8î + 3 - 5k - 4î + 5 - 3k

= 4î - 8k + 8

Next, calculate the acceleration (a) using the formula:

a = Δv / t

where t is the time interval, given as 10 seconds.

a = (4î - 8k + 8) / 10

= (0.4î - 0.8k + 0.8) m/s²

The force (F) required to accelerate the object can be found using Newton's second law:

F = m * a

where m is the mass, given as 40 kg.

F = (40 kg) * (0.4î - 0.8k + 0.8) m/s²

= (16î - 32k + 32) N

Simplify the expression to obtain the final answer:

F = 16î - 32k + 32 N

≈ 12.4 N

Therefore, the force needed to accelerate a mass of 40 kg from velocity v₁ = (4î - 5) + 3k)m/s to v = (8î + 3) - 5k)m/s in 10 seconds is approximately 12.4 N.

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Answer:

Experiments showed that increasing the light frequency increased the kinetic energy of the photoelectrons, and increasing the light amplitude increased the current.

Explanation:

The photocurrent increases linearly with the intensity of the incident light but is independent of its frequency. The stopping potential increases linearly with the frequency of the incident light but is independent of its intensity.

Answer:

The gravitational force, or gravity, is the downward force that causes objects to fall towards the surface of a planet or natural satellite. It is computed by multiplying the mass of an object with the acceleration due to gravity of the planet or natural satellite.