The question is “Which direction will the airplane move” plz help :,)

Explanation:

df = do + vot  + 1/2 at ^2      do = what you are looking for      df = ground = 0

0 = do + 6 (3 ) + 1/2 ( -9.81) (3^2)

do = 26.1 m

Answer:

The correct option is b: A solute depresses the freezing point because the solute disrupts the crystal formation of the solvent.

Explanation:

The depression of the solvent's freezing point is caused by the addition of a solute because the presence of the molecules of the solute interferes in the arrange and close up of the molecules of the solvent to form the crystal of the solid.

The attraction of the solute molecules to the solvent molecules interfere with the formation of the solid, so the solution must be cooled to a lower temperature so it can form the solid.

Hence, the correct option is b: A solute depresses the freezing point because the solute disrupts the crystal formation of the solvent. The other options are incorrect.

I hope it helps you!              

Answer:

electric current refers to electrons and protons flow in the opposite direction. current is flow electrons ,but current and electron flow in the opposite direction. current flows from positive to negative and electron flows from negative to positive.

Answer:

CENTER OF GRAVITY is the point in the object around which its weight is evenly distributed.

Explanation:

An object's center of gravity (CG) is the equilibrium point where its constituent parts are uniformly distributed. In this situation, the object may behave as though its entire weight were concentrated at the center of gravity (CG).

Applications include the concept that a weighted object always rotates freely about its center of mass and that a weighted object will fall over if its center of gravity is beyond its base of support. Additionally, the center of gravity is where the most force is applied.

The point in the object around which its weight is evenly distributed is known as the center of gravity.

It is also referred to as the center of mass. The center of gravity is the point around which the mass of an object is evenly distributed in all directions. There are different ways to find the center of gravity of an object. However, one common method involves suspending the object from different points and then marking the vertical line. The intersection of these lines is the center of gravity. The center of gravity has applications in physics and engineering. For instance, in the design and construction of buildings, it is essential to determine the center of gravity to ensure the stability and safety of the structure. In summary, the center of gravity is an important concept in physics and engineering that helps in understanding the distribution of weight and stability of objects.

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Answer:

Displacement = 2.83km

Explanation:

Given

\(South = 1.5km\)

\(East = 2.4km\)

Required

Determine the displacement

See attachment for proper representation of the cat's movement.

The displacement is represented by the slanted line and it is calculated as follows:

\(D\² = S\² + E\²\)

\(D^2 = 1.5\² + 2.4\²\)

\(D\² = 2.25 + 5.76\)

\(D\² = 8.01\)

\(D = \sqrt{8.01}\)

\(D = 2.83019434\)

D = 2.83 km (approximated)

The wavelength of the sound wave produced by the bagpipe is 0.773 m.

The separation between two identical locations in two succeeding waves is known as the wavelength of a wave. The separation between each wave's crest (or trough) and the next is known as the wavelength. Equations that describe wavelength use the Greek letter lambda as the representation.

The wavelength of light determines its hue, much as the wavelength of sound determines its pitch. The visible spectrum of light has wavelengths between around 700 nm (red) to 400 nm (violet). Audible sound has a wavelength that ranges from 17 mm to 17 m. Compared to visible light, audible sound has much longer wavelengths.

Given, Frequency of sound, f = 440 Hz

Speed of sound, v = 340 m/s

For the wavelength of the sound wave,

v = f × λ

Putting the values,

λ = \(\frac{340}{440}\)

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Answer:

the answer is a

Explanation:

The mass of the brick is approximately 3.2 kilograms.

To calculate the mass of the brick, we can use the formula for potential energy, which is PE = m * g * h, where PE is potential energy, m is mass, g is gravitational acceleration (9.8 m/s²), and h is height. In this case, PE = 470 J and h = 50 ft (15.24 meters, since 1 ft = 0.3048 meters).

Step 1: Convert potential energy to SI units.
PE = 470 J

Step 2: Convert height to SI units.
h = 50 ft × 0.3048 m/ft = 15.24 m

Step 3: Rearrange the formula to solve for mass.
m = PE / (g * h)

Step 4: Plug in values and calculate mass.
m = 470 J / (9.8 m/s² * 15.24 m) ≈ 3.2 kg

The mass of the brick is approximately 3.2 kilograms.

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Answer: Hot air is transferred through heat being radiated from a thermal burner.

The oven absorbs air from the environment and passes it through a thermal resistance (thermal burner) to heat it and then this hot air is the one that cooks the food.

Answer:

he is wronggg

Explanation:

Answer:

Water droplets could obtain charges thru contact with other drops.

Then if two similar drops (both positively charged) came in contact

charge could be transferred because one side of the drop would be positive and one side of the other would be negative by induction.

Several Physics Labs have built experiments called "Kelvins Thunderstorm"

where objects found in the home could be used to build a charge generator that can generate several thousand volts from falling water droplets.

Lightning usually occurs because of the very large potential that can build

because of charge differences between overhead clouds and the induced charge that will then follow in the ground. Mountain climbers know that it's time to look for safer ground when sparks start to jump from the ropes.

Answer:

The answer is C. Series.

Explanation:

the light contributes to the changing seasons because the shorter the day it is most likely winter or fall and the longer the day it is most likely summer or spring

Answer:

Exothermic because energy is a product

Explanation:

Since energy is a product, heat was released, meaning that the reaction is exothermic.

Answer:

it's b I guess not sure

Explanation:

The reading of the balance for a body with mass 3kg and volume 4 × 10⁻⁴ in air and when fully immersed in water are 29.4N and 25.5N, respectively.

The weight of an object is the force which is acting on the object due to the influence of gravity. Weight is a vector quantity because it has both the magnitude and direction. The gravitational force acts on the object.

The reading of the balance when the body is in air, W = mg = (3) × (9.8) = 29.4 N

The reading of the balance when the body is fully immersed in water is:

F = mg − ρgV = (3) × (9.8) − (1000) × (9.8) × (0.0004) = 25.5 N

Therefore, the reading of the balance in the given conditions are 29.4N and 25.5N.

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A mountain or hill that remains when adjacent areas have eroded to lower levels is a residual hill or monadnock.Buttes were created through the process of erosion, the gradual wearing away of earth by water, wind, and ice. Buttes were once part of flat, elevated areas of land known as mesas or plateaus. In fact, the only difference between a mesa and a butte is its size.

Mesas are formed by erosion, when water washes smaller and softer types of rocks away from the top of a hill. The strong, durable rock that remains on top of a mesa is called caprock. A mesa is usually wider than it is tall. Mesas are usually found in dry regions where rock layers are horizontal. Fast Fact

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Answer:

The velocity of an object is the rate of change of its position with respect to a frame of reference, and is a function of time. Velocity is equivalent to a specification of an object's speed and direction of motion (e.g. 60 km/h to the north).

Acceleration, rate at which velocity changes with time, in terms of both speed and direction. A point or an object moving in a straight line is accelerated if it speeds up or slows down. ... Acceleration is defined as the change in the velocity vector in a time interval, divided by the time interval.

In physics and astronomy, a frame of reference consists of an abstract coordinate system whose origin, orientation, and scale are specified by a set of reference points ― geometric points whose position is identified both mathematically and physically.

Answer:

(A)

Explanation:

ITS A ok ok bye

Answer:

C. Magnetic fields of atoms aligning

Answer:

c

Explanation:

a pex

The distance to the object is approximately 127,907.8 km to the nearest km.

The formula to calculate the distance to an object using its parallax angle is:

distance = (baseline) / (2 * tan(parallax angle))

In this case, the baseline is 2000 km and the parallax angle is 0.45 degrees. To convert the angle to radians, we multiply by pi/180:

distance = (2000 km) / (2 * tan(0.45 * pi/180))

distance = (2000 km) / (2 * tan(0.007854))

distance = (2000 km) / (2 * 0.007854)

distance = (2000 km) / (0.01571)

distance = 127907.8 km

Therefore, the distance to the object is approximately 127,907.8 km to the nearest km

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Answer:

Distance between them  (r^2 )

Explanation:

F = C q1q2/r^2

The acceleration due to gravity on asteroid X is approximately  0.5 meter/secon^2. Hence, option (D) is correct.

The acceleration an object experiences as a result of gravitational force is known as acceleration due to gravity. M/s^2 is its SI unit. Its vector nature—which includes both magnitude and direction—makes it a quantity. The letter g stands for gravitational acceleration.

Given that:  An astronaut weighs 500 Newtons on Earth and 25 newtons on asteroid X.

Hence,  The acceleration due to gravity on asteroid X is :

= acceleration due to gravity on Earth × (25 N/500N)

= 10 meter/secon^2 × (1/20)

= 0.5 meter/secon^2 ( approx.)

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Ocean breezes are primarily due to convection, which is the transfer of heat through the movement of fluids or gases.  The correct option is B.

Convection is a method of heat transfer that occurs in fluids (liquids and gases) and involves the movement of material carrying thermal energy. In convection, heat is transferred by the movement of hot fluid from one place to another, which then causes the transfer of heat from the hot fluid to the cooler fluid or surface it comes into contact with.

Convection can occur in two ways:

Natural convection: It occurs due to the density differences caused by temperature variations within a fluid. When a fluid is heated, its density decreases, making it lighter and causing it to rise. As it rises, it cools, becomes denser and falls back down, creating a cycle that is known as a convection current.

Forced convection: In this type of convection, a fluid is forced to flow over a surface or through a channel, by an external agent like a fan or pump. The forced flow enhances the rate of heat transfer from the surface or through the channel, as compared to natural convection, where the fluid flow is driven only by buoyancy forces.

Convection is a very important process for heat transfer in many natural and industrial applications, including heating and cooling systems, meteorology, oceanography, and more.

Here in the Question,

Ocean breezes are primarily due to convection, which is the transfer of heat through the movement of fluids or gases. As the sun heats up the surface of the ocean, the air above it also heats up and rises. This creates a low pressure area that draws in cooler air from over the land, resulting in a breeze that blows from the ocean towards the shore. This is why sea breezes are generally felt during the day, when the land is warmer than the sea, and why they tend to die down at night, when the opposite occurs.

Therefore, The correct answer is B i.e convection.

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Answer: Distance:400m Distance:0m

Explanation: Distance: 1(lap)x400 which will obviously be 400m

Displacement: from where you started to where’s you ended so if you ran a full lap around a track and came back to where you started you wouldn’t have ran any Miles’s in displacement.

It might help you more to draw a diagram, but I hope I helped!

Answer:

Explanation:

The force acting on an object given it's mass and acceleration can be found by using the formula

force = mass × acceleration

From the question we have

force = 18 × 1.62

We have the final answer as

Hope this helps you

The melting point of a substance is the temperature at which the substance changes its phase from solid to liquid.

The freezing point is the temperature at which the substance changes its phase from liquid to solid.

The melting point of a substance is the same as the freezing point. That is when the temperature of the substance in the liquid form is increased continuously, the temperature at which the substance turns into a solid is equal to the temperature at which the substance will turn into liquid from solid if the temperature is decreased continuously, from a higher temperature.

Here, we are required to determine Sunee's acceleration during the last portion of the training run.

Sunee's acceleration during the last portion of the training run is a = 0.0775m/s².

She starts out at a pace of 4.3 m/s for 19mins.

Therefore, after 19 mins = 1140seconds;

Sunee must have travelled a distance,

D = speed × time

D = 4.3 × 1140

D = 4902 m

However, the race is a 5km race, therefore the rest of the race, S = 5000 - 4902 = 98m

By using the equation of motion thus;

S = ut + (1/2)at².

Therefore;

a = 0.0775 m/s².

Therefore, Sunee's acceleration during the last portion of the training run is a = 0.0775m/s².

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This question can be solved using the equations of motion.

The acceleration of Sunee during the last portion is "0.077 m/s²".

First, we will find the distance covered by Sunee in the first portion of uniform motion. So, we will use the equation for uniform motion here:

\(d = vt\\\)

where,

d = distance covered = ?

v = uniform speed = 4.3 m/s

t = time interval = 19 min = 1140 s

Therefore,

\(d = (4.3\ m/s)(1140\ s)\\d = 4902\ m\)

Now, the distance covered during the last portion will be:

s = Total Distance - d

s = 5 km - 4902 m = 5000 m - 4902 m

s = 98 m

Now, we use the second equation of motion to find out the acceleration during the last portion:

\(s = v_it+\frac{1}{2}at^2\)

where,

s = 98 m

vi = initial speed = 4.3 m/s

t = time interval = 19.4 s

a = acceleration = ?

Therefore,

\(98\ m = (4.3\ m/s)(19.4\ s)+\frac{1}{2}a(19.4\ s)^2\\\\a = \frac{2(14.58\ m)}{376.36\ s^2}\)

a = 0.077 m/s²

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The attached picture shows the equations of motion.