I’ve been stuck please help !!

Answer:

d

Explanation:

because when an object stand in front of light, light bends around the other and doesn't go through it

Answer:

you mean this halo right

Explanation:

Halo is an American military science fiction media franchise managed and developed by 343 Industries and published by Xbox Game Studios. The franchise and its early main installments were originally developed by Bungie. The central focus of the franchise builds off the experiences of Master Chief John-117, one of a group of supersoldiers codenamed Spartans, and his artificial intelligence (AI) companion, Cortana.

The original trilogy centers on an interstellar war between humanity and an alliance of aliens known as the Covenant. The Covenant, led by their religious leaders called the Prophets, worship an ancient civilization known as the Forerunners, who perished while defeating the parasitic Flood. The eponymous Halo Array are a group of immense, habitable, ring-shaped superweapons that were created by the Forerunners to destroy the Flood, but which the Covenant mistake for religious artifacts that, if activated, would transport them on a Great Journey to meet the Forerunners. They are similar to the Orbitals in Iain M. Banks' Culture novels, and to a lesser degree to author Larry Niven's Ringworld concept.[1][2][3][4]

The games in the series are critically acclaimed, with the original considered the Xbox's "killer app".[5] This led to the term "Halo killer" being used to describe console games that aspire, or are considered, to be better than Halo.[6] Fueled by the success of Halo: Combat Evolved, and by marketing campaigns from publisher Microsoft, its sequels went on to record-breaking sales.[7][8][9] The games have sold over 65 million copies worldwide, with the games alone grossing almost $3.4 billion.[10][11][12] Halo has since become one of the highest-grossing media franchises of all time. These strong sales led to the franchise's expansion to other media; the Halo Universe now spans multiple best-selling novels, graphic novels, comic books, short movies, animated movies and feature films, as well as other licensed products.

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The energy input at aphelion (farthest from the sun) is 92% of the intensity at perihelion (closest to the sun) because of the inverse-square law, which states that the intensity of radiation decreases with the square of the distance from the source.

However, the difference in energy input does not solely explain the difference in surface temperature from winter to summer.

Other factors, such as the Earth's axial tilt, atmospheric composition, and cloud cover also play a role in determining the surface temperature.

Evidence from climate models and observations indicate that changes in these factors, especially changes in the number of greenhouse gases in the atmosphere, can have a significant impact on global temperature patterns.

In conclusion, while the inverse-square law affects the intensity of solar radiation, it is not the sole factor in determining surface temperature, and the role of other factors must be considered to fully understand seasonal and climatic variations.

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Answer:

Distance traveled = 3 * 10E8 * 17.2 * 10E-9 = 5.16 m

.81 / 3 * 10E8 = 2.7 * 10E-9    normal time thru glass

(20.8 - 17.2) * E10-9 = 3.6 * 10E-9   additional time due to glass

c tg = c n ta      where tg and ta are the times spent in glass and air

(Note you can also write Va = n Vg  or  D / ta = n D / tg)

n = tg / ta = 3.6 / 2.7 = 1.33 the index of refraction of the glass

Wavelength (air) = Wavelength (glass) * n

Wavelenght = 560 nm / 1.33 = 421 nm

Answer:

b. the amplitude increases

Explanation:

because that's not wave

The height that will illustrate the distance will be d = 6.36m

Based on the information given, the length of the vine will be:

L = ✓(16² + 27.7)²

L = 32m

The velocity of Jane when she reaches position B will be:

V = ✓2gh

V = ✓(2 × 9.8 × 4.3)

V = 9.18m/s

We will apply the conversation of momentum. This will be:

50 × 9.18 = (50 + 80)V1

V1 = 3.53m/s

Therefore, the height that will illustrate the distance will be:

31.36² + d² = 32²

d² = 32² - 31.36²

d = 6.36m

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The density of the object is is 4000 kg/m³

Density is the ratio of mass to volume of a body.

To calculate the density of the obeject, we use the formula below

Formula:

Where:

From the question,

Given:

Susbtitute these values into equation 1

Hence, the density is 4000 kg/m³

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Answer:The amount of energy carried by radio waves is enough to provide images but not enough to kill cells.

Explanation:

The reason of MRI should be useful is that the energy amount that should be carried out via the radio waves.

It refers to the medical imaging technique that should be applied in the radiology to create the pictures with respect to the anatomy and the process of physiological with related to the body.

Also, it is applied for strong the magnetic field, gradient related to the magnetic field, also the radios waves for produce image in the body organs.

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The acceleration of the mass in terms of {m} is -

a = 2F/m.

The force acting on a body is given by -

Force {F} = mass {m} x acceleration {a}

Given is that a net force of {F} is applied to half the mass {m/2}.

We know that -

Force {F} = mass {m} x acceleration {a}

F = {m/2} x a

a = 2F/m

Therefore, the acceleration of the mass in terms of {m} is -

a = 2F/m.

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Answer:

Use below table to read the color codes.

The change in Mary’s potential energy is - 3412.5 Joule.

The energy that an item has or acquires when its location changes as a result of being in a gravitational field is known as gravitational potential energy. Gravitational potential energy can be defined as an energy that has a connection to gravitational force or gravity.

Given that:

Weight of Marry: W = 525 N.

She walks down a flight of stairs to a level 6.5 m.

Hence, decrease in potential energy of her = Wh

= 525 N × 6.5 m

= 3412.5 Joule.

Hence, the  decrease in potential energy of her is 3412.5 Joule.

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The distance travelled by the car after the brake was applied is 125 m.

The distance travelled by the car is calculated by applying the following kinematic equation as shown below.

Mathematically, the distance travelled by the car at the given average speed is calculated as;

s = [ ( v + u ) / 2 ] t

where;

The distance travelled by the car is calculated as;

s = [ ( 0 + 25 m/s ) / 2 ] ( 10 s )

s = 125 m

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Pressure exerted by man on the ground is 551812.5 Pa. The pressure exerted by man on the ground is approximately 80.019 Ib/in².

Force that is applied perpendicular to the surface of object per unit area over which that force is distributed is called as pressure.

As, Pressure = Force / Area

Force = mass x gravity

Given, mass = 90 kg and gravity = 9.81 m/s²

So, Force = 90 kg x 9.81 m/s² = 882.9 N

Area = length x width

given, length = width = 0.04 m

So, Area = 0.04 m x 0.04 m = 0.0016 m²

Pressure = Force / Area = 882.9 N / 0.0016 m² = 551812.5 Pa

Therefore, pressure exerted by the man on the ground is 551812.5 Pa.

1 Pa = 0.0001450377 Ib/in²

551812.5 Pa x 0.0001450377 Ib/in² = 80.019 Ib/in² (approximately)

Therefore, the pressure exerted by the man on the ground is approximately 80.019 Ib/in².

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The maximum speed of the car on this curve without skidding to the outside of the curve will be 14.27 meters per second.

If there is a relative motion between the bodies, then there is a force that opposes the motion, which is known as friction force.

A roadway bends to one side with a sweep of the curve of 30 m and is banked at 30° so vehicles can take this bend at higher paces. Consider a vehicle of mass 1525 kg whose tires have a static grinding coefficient of 0.8 against the asphalt.

Let 'v' be the maximum speed of the car. The centrifugal force on the car is given as,

F = mv² / r

F = 1525 v² / 30

F = 50.833 v²            ...1

The friction force is given as,

F = μN

F = 0.80 x mg cosθ

F = 0.80 x 1525 x 9.8 x cos 30°

F = 10,354.2 N          ....2

From equations 1 and 2, then we have

50.833 v² = 10354.2

v² = 203.689

v = 14.27 meters per second

The maximum speed of the car on this curve without skidding to the outside of the curve will be 14.27 meters per second.

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Answer:

the three major elements of language include form, content, and use. form involves three sub-components of syntax, morphology, and phonology. content is also known as semantics and use can be known as pragmatics.

Explanation:

hope this helps! :)

According to the given statement:

I) acceleration a=2m/s²

ii) deceleration a=−1  m/s²

iii) the distance travelled =200  m.

Velocity's rate of change with time, in both terms of speed and direction. A point or object moving straight ahead is accelerated when it increases or decelerates. Even if the speed remains constant, motion on the a circle increases because the orientation is always shifting.

Briefing:

You use the standard formulas for distance as a function of speed, acceleration and time:

st = v0t + 0.10at²  for acceleration ( a >0) and deceleration ( a <0), or at constant speed ( a =0).

Now  a  is not given for acceleration and deceleration, so we need to compute this from

vt=v₀+at

Acceleration:  

20=10a⟹a=2m/s²

Distance travelled:  

0.10∗10∗10²=100  m

Distance travelled while at constant speed:

s=vt=20∗20=400  m

Deceleration:  

0=20+20a⟺a=−1  m/s²

Distance travelled:

20∗20+0.1(−1)20²=400−2∗100

=200  m.

So the total distance travelled is  100+400+200=700m

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Answer:

P = 510 Ns

Explanation:

Momentum is defined as the quantity of motion contained in a body. Mathematically momentum is defined as the product of mass and the velocity of the body. So in order to find out the momentum of the referee after the collision with the football player, we can use the following formula:

\(P = mv\\\)

where,

P = Momentum of the referee after the collision = ?

m = mass of the referee = 85 kg

v = speed of the referee after collision = 6 m/s

Therefore,

\(P = (85\ kg)(6\ m/s)\)

P = 510 Ns

Answer:

A. Heat sink

Explanation:

Answer:

Wm = 97.2 [N]

Explanation:

We must make it clear that mass and weight are two different terms, the mass is always preserved that is to say this will never vary regardless of the location of the object. While weight is defined as the product of mass by gravitational acceleration.

W = m*g

where:

m = mass = 60 [kg]

g = gravity acceleration = 10 [m/s²]

But in order to calculate the weight of the body on the moon, we must know the gravitational acceleration of the moon. Performing a search of this value on the internet, we find that the moon's gravity is.

gm = 1.62 [m/s²]

Wm = 60*1.62

Wm = 97.2 [N]

The equation  for a machine’s efficiency is = (output energy ÷ input energy) × 100%

Efficiency is the ability to achieve something or get a desired outcome without wasting resources, time, money, energy, or effort. In a broader sense, it is the capacity to carry out tasks effectively and efficiently.

It denotes the degree of performance that requires the fewest inputs to provide the greatest amount of output in more mathematical or scientific words.

Hence, mathematically, machine’s efficiency can be expressed as:

machine’s efficiency =  (output energy ÷ input energy) × 100%

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The answer is 1) The pressure at point D is 80 kPa. 2) The temperature at point D is 800 K. 3) The net work done on the gas over four cycles is zero. 4) The internal energy of the gas at point A is 100 J. 5) The total change in internal energy during four complete cycles is zero.

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Answer:

5.3 m

Explanation:

Your friend is 1800 mm tall, and you want them to fill half the frame (79 mm / 2 = 39.5 mm).

The film is 116 mm behind the lens.  Using similar triangles:

x / 1800 = 116 / 39.5

x = 5286

Rounded to two significant figures, your friend should stand 5.3 meters away.

Answer:

the commutator

Explanation:

took the quiz!

The part of the motor that causes the consistent motion of the electromagnet in the same direction is the commutator. The correct answer is C. The commutator.

The commutator is a critical component in a motor that enables the conversion of electrical energy into mechanical energy. It consists of a set of copper segments connected to the rotating coil or armature of the motor. As the armature spins, the commutator ensures that the electrical current flowing through the coil changes direction at the right time.

This change in current direction creates a rotating magnetic field that interacts with the permanent magnets, resulting in a continuous rotational motion of the motor. In essence, the commutator acts as a switch, controlling the flow of current and ensuring the electromagnet rotates in a consistent direction.

Therefore, the part of the motor that causes this motion is C. The commutator.

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The edict demands that slaveholders in Mexico immediately emancipate their slaves.

Demand is the quantity of a product or service that consumers are willing and able to purchase at a given price in a given time period. It is an economic concept that refers to how much of a product or service is desired by buyers. Demand is usually affected by the price of a product, the availability of a product, and the income of the buyer. ]

This means that they must formally declare their slaves to be free from bondage and provide them with legal documents that attest to their freedom. Slaveholders must also provide former slaves with financial compensation and assistance in finding employment or other means of support. Additionally, they must provide them with property, land, and other resources that they were denied while in slavery.

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The velocity of the bucket after falling a distance of 12 ft is 7.54 m/s.

To determine the velocity of the bucket after it has fallen a distance of 12 ft, we need to use the equation of motion for an object falling under the influence of gravity:

v = √(2gh)

where v is the velocity of the object, g is the acceleration due to gravity (9.8 m/s²), h is the height the object has fallen, and h is the distance the object has fallen.

In this case, h = 12 ft = 3.66 m, so the velocity of the bucket after falling a distance of 12 ft is:

v = √(2 × 9.8 m/s² × 3.66 m) = 7.54 m/s

Note that this is the velocity of the bucket relative to the ground, and does not take into account any effects of the windlass or the spokes.

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Explanation:

Newton's second law of motion is F = ma, or force is equal to mass times acceleration

Answer:

The frequency of a sound does not affect the speed at which it travels.

Explanation:

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1.5 kg ball has an acceleration of 9.0 m/s^2 to the left. what is the net force acting on the ball 13.50 N Leftwards

The rate at which an object's velocity with respect to time changes is referred to as acceleration in mechanics. They are vector quantities, accelerations. The direction of the net force acting on an object determines the direction of its acceleration.

Any object's mass and acceleration in the force's direction are multiplied together to form the net force exerted on it.

Here, F = m*a

         F = 1.5*9.0 = 13.50 N

Since, the acceleration is to the left, the net force also acts towards left.

13.50 N Leftwards

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