A plane flies 410 km east from city A to city B in 44.0 min and then 988 km south from city B to city C in 1.70 h. For the total trip, what are the (a) magnitude and (b) direction of the plane's displacement, the (c) magnitude and (d) direction of its average velocity, and (e) its average speed

The momentum of the system remains constant.

According to the principle of conservation of momentum, the total momentum of an isolated system remains constant unless acted upon by an external force.

In this case, when you jump up, your momentum in one direction increases, but an equal and opposite momentum is imparted to the Earth due to the interaction between you and the Earth, canceling out the change in momentum of the system.

Therefore, while your individual momentum increases in one direction, the Earth's momentum changes in the opposite direction, resulting in a net momentum of zero for the system as a whole. Conservation of momentum ensures that the total momentum of the system remains constant throughout the process of you jumping up.

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Answer:

the car’s final displacement is 60 m

Explanation:

Given;

initail velocity of the car, u = 0

acceleration of the car, a = 0.8 m/s²

time of motion, t = 10 s

The first displacement of the car:

\(x_1 = ut + \frac{1}{2} at^2\\\\x_1 = 0 + \frac{1}{2} (0.8)(10)^2\\\\x_1 = 40 \ m\)

The second displacement of the car;

acceleration, a = 0.4 m/s²,   time of motion, t = 10 s

\(x_2 = ut + \frac{1}{2} at^2\\\\x_2 = 0 + \frac{1}{2} (0.4)(10)^2\\\\x_2 = 20 \ m\)

The final displacement of the car;

x = x₁  +  x₂

x = 40 m  +  20 m

x = 60 m

Therefore, the car’s final displacement is 60 m

Careful measurements of the shifting spectral lines in an ordinary star orbiting a black hole can provide valuable information about the presence and properties of the black hole.

By observing the shifting of spectral lines, scientists can infer the presence of a massive object exerting gravitational influence on the star. This gravitational effect, known as gravitational redshift or blueshift, causes the wavelengths of light emitted by the star to shift towards longer or shorter wavelengths, respectively. The careful measurements of these spectral line shifts can provide insights into various aspects of the black hole, such as its mass, spin, and orbital characteristics. The degree of spectral line shift can be used to estimate the gravitational force exerted by the black hole, which in turn helps determine its mass.

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This is a description of the apparent motion of stars due to Earth's axial tilt and revolution around the sun.

Distance is a scalar quantity that represents the magnitude of separation between two points in space. It is the length of the path between two points, and is measured in units such as meters, kilometers, miles, etc. Distance is fundamental to the concept of spatial location and helps describe the relative positions of objects in three-dimensional space.

Here,

The apparent motion of the stars is due to the combination of the Earth's rotation on its axis and its revolution around the sun. As the Earth rotates, the stars appear to move across the sky in a west-to-east direction, and as the Earth revolves around the sun, the stars appear to move in a circular path, which is known as the apparent motion of the stars. The apparent motion of stars closer to us is greater than that of stars that are further away because of the closer proximity to Earth.

This apparent motion is also affected by the Earth's axial tilt, which causes the stars to appear to move in an elliptical path throughout the year.

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Answer:

0.45

Explanation:

Answer:

Explanation:

The answer is C.

For extra credit, you can point out that even at C, the spring force is not exactly zero as there is a tension force equal to the weight of the mass.

False (One pound-force is the force required to accelerate a mass of 32.174 lbm by 1 ft/s2. In other words, the weight of 1-lbm mass at sea level is 1 lbf.)

Will 1 lbm equal 1 lbf?

The mass that is equal to one penny (lbf) on earth is designated by the unit lbm. It is incorrect to say that a lbm and a lbf are equivalent because a lbm is a unit of mass measurement and a lbf is a unit of force. On Earth, however, it is true to say that one lbm is equal to one lbf.

In what sense does the law of acceleration apply?

The relationship between a body's acceleration and speed is direct.

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Complete question:

State whether the given statelet is True or False.

One pound-force is the force required to accelerate a mass of 32.174 lbm by 9.807 ft/s2.

Answer:

See Below

Explanation:

1: Thermal  Energy

2: Chemical Energy

3: Nuclear Energy

4: Electrical Energy

5: Radiant Energy

6: Light Energy

7: Motion Energy

8: Sound Energy

There are 8 types are energy that are above.

Hope this helps.

Given data:

* The distance traveled is 346 m.

Solution:

Let m be the mass of the body.

Then, the gravitational potential energy of the body on reaching the top of the tower is,

where g is the acceleration due to gravity, and h is the height of the tower,

As mg is the weight of the body.

Substituting the known value,

where w is the weight of the body,

When a person walks to the certain height, the internal energy of the person's body is converted into the gravitational potential energy.

Answer: The third law states that for every action (force) in nature there is an equal and opposite reaction.

Explanation:

if object A exerts a force on object B, then object B also exerts an equal and opposite force on object A. Notice that the forces are exerted on different objects.

Hope this helps you! Have a good day! ^-^

Answer:

b

Explanation:

because electromagnetic waves can travel in vacuum as they don't require particles to transfer energy from one point to another. they can also travel through mediums such as the wall or air, if not how do radio waves transfer energy in this hyper advanced world? through the air

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Answer:

Both pitch and volume are subjective

Explanation:

The aforementioned circumstances can result in the production of 0.119 moles of ammonia (NH3).

We must utilize the ideal gas law and the stoichiometry of the balanced chemical equation for the reaction between hydrogen (H2) and nitrogen (N2) to make ammonia in order to determine how many moles of ammonia (NH3) were produced.

Let's begin by formulating the reaction's balanced equation:

3H₂ + N₂ → 2NH₃

We can see from the equation that we produce 2 moles of ammonia for every 3 moles of hydrogen. As a result, the molar ratio of ammonia to hydrogen is 2:3.

We must convert the supplied parameters of 4.0 liters of hydrogen at 50.0 °C and 1.2 atm of pressure into moles in order to use the ideal gas law. The ideal gas law and the molar volume of an ideal gas at standard temperature and pressure (STP) may be combined using the equation shown below:

PV = nRT

Where:

The temperature must first be converted from Celsius to Kelvin:

T(K) = T(°C) + 273.15

T(K) = 50.0°C + 273.15 = 323.15 K

To solve for the number of moles (n), we may now rearrange the ideal gas law equation as follows:

n = PV / RT

n = (1.2 atm) * (4.0 L) / (0.0821 L·atm/(mol·K) * 323.15 K) ≈ 0.179 mol

Since ammonia and hydrogen have a 2:3 molar ratio, we can calculate the amount of ammonia created by multiplying (2/3) * 0.179 mol by 0.119 mol.

As a result, the circumstances allow for the production of 0.119 moles of ammonia.

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When two instruments attempt to play the same note at the same time, the waves they produce interfere with each other. If the instruments are perfectly in tune, the waves will add constructively, creating a steady and uniform sound. However, if one of the instruments is even slightly out of tune, the waves will interfere destructively, creating a fluctuating sound known as beats.

In this case, the two guitarists attempt to play the same note with wavelengths of 6.50 cm and 6.53 cm. To calculate the frequency of the beats, we need to find the difference in wavelengths between the two notes:

Δλ = λ1 - λ2
Δλ = 6.53 cm - 6.50 cm
Δλ = 0.03 cm

Next, we need to convert the wavelength difference into a frequency:

f = v/Δλ
where v is the speed of sound in air, approximately 343 m/s.

f = 343 m/s / 0.03 cm
f = 11,433 Hz

Therefore, the two guitarists will hear beats with a frequency of 11,433 Hz when they play together. This means that the sound will fluctuate 11,433 times per second, creating a noticeable pulsing effect.
Two guitarists attempt to play the same note of wavelength 6.50 cm at the same time, but one instrument is slightly out of tune and plays a note of wavelength 6.53 cm instead. To find the frequency of the beats these musicians hear when they play together, follow these steps:

1. Convert the wavelengths to meters: 6.50 cm = 0.065 m and 6.53 cm = 0.0653 m.
2. Calculate the frequencies (f) of each note using the speed of sound (v = 343 m/s) and the formula v = f * λ, where λ is the wavelength:
  - For the first note: f1 = v / λ1 = 343 / 0.065 ≈ 5276.92 Hz
  - For the second note: f2 = v / λ2 = 343 / 0.0653 ≈ 5256.20 Hz
3. Calculate the frequency of the beats (fb) by finding the absolute difference between the two frequencies: fb = |f1 - f2| = |5276.92 - 5256.20| ≈ 20.72 Hz

The musicians will hear beats with a frequency of approximately 20.72 Hz when they play together.

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Answer:

i belive it is A Elliptical

Explanation:

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The speed of the boat is 9 kilometers per hour.

When a boat travels upstream (against the current), its effective speed decreases due to the opposing current. Conversely, when the boat travels downstream (with the current), its effective speed increases. In this scenario, the boat takes 3 hours to cover a certain distance upstream, while it takes only 2 hours to cover the same distance downstream. We are given that the speed of the current is 3 kilometers per hour. To find the speed of the boat, we can set up the following equation:

Distance = Speed × Time

Let's assume the speed of the boat is represented by B. When the boat is traveling upstream, its effective speed is reduced by the speed of the current, resulting in B - 3. Similarly, when the boat is traveling downstream, its effective speed is increased by the speed of the current, resulting in B + 3. We can now set up the equation:

Distance (upstream) = (B - 3) × 3

Distance (downstream) = (B + 3) × 2

Since the distances are the same in both cases, we can equate the two equations:

(B - 3) × 3 = (B + 3) × 2

Simplifying the equation, we find:

3B - 9 = 2B + 6

B = 15

Therefore, the speed of the boat is 15 kilometers per hour. To account for the opposing current, we subtract the speed of the current (3 kilometers per hour), resulting in a net effective speed of 9 kilometers per hour.

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Answer:

(C)  all bodies

F = G M1 M2 / R^2     all bodies (M1 and M2)  are gravitationally connected

Answer:

Explanation:

Explanation:

(a)

We get the time taken to reach the maximum height by using the vertical component of the velocity:

v=u+at

∴ 0=25sin60−9.8t

∴ t=21.65/9.8=2.21s

By inference the return to earth will take the same time, assuming a level playing field.

∴ total time in flight =2×2.21=4.42s

(b)

The horizontal component of velocity is constant so we get:

Distance = speed x time=25cos60×4.42=55.25m

The driver's reaction time is approximately 1.48 seconds.

The distance travelled by the car during the driver's reaction time can be calculated using the formula:

\(d=v*t\)

where:

d is the distance travelled

v is the initial velocity

t is the time taken

In this case, the car travels a distance of 46 m before the driver starts to brake. Let's assume that the car maintains its initial speed of 31 m/s during this distance, and the driver's reaction time is denoted by t. Then, the distance travelled by the car during the driver's reaction time is also 46 m. Therefore, we have:

\(46m = 31m/s*t\)

Solving for t, we get:

\(t=46m/31m/s = 1.48s\)

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hope that helps and please tell me if i am wrong :)

Answer:

the projection of a vector quantity, as force or velocity, along an axis.

Explanation:

An asteroid is a type of space rock, much smaller than a planet, and moves in an elliptical orbit around the Sun.

It is a smaller body that is part of the solar system and has a diameter of less than 1,000 kilometers.

Asteroids are the subject of constant study due to the proximity they maintain to Earth, despite the fact that the chances of their impacting are very low despite the fact that they have reached the planet in a very remote past.

Therefore, we can conclude that asteroids are characterized by having a very weak gravitational force, they are celestial bodies that orbit around the Sun, and that they are remnants of the matter that gave rise to the Solar System.

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Answer:

ufifufogifsotufidogifidofut

Answer:

166 meters. Displacement is the movement of something from one place/position to another. Unless the type of displacement you're talking about is “the occupation by a SUBMERGED body or part of a body of a volume which would not otherwise be occupied by a fluid”.

Explanation:

33 + 71 + 62 = 166

The distance you traveled does not depend upon where, is about how much.

Answer:

\(\boxed {\boxed {\sf v\approx0.24 \ m/s}}\)

Explanation:

Velocity can be found by dividing the displacement by the time.

\(v=\frac{displacement}{time}\)

The displacement is 4.77 meters and the time is 19.5 seconds.

\(displacement=4.77 \ m \\time=19.5 \ s\)

Substitute the values into the formula.

\(v=\frac{4.77 \ m }{19.5 \ s}\)

Divide.

\(v=0.244615385 \ m/s\)

Let's round to the nearest hundredth (just to make the answer more concise).

The 4 in the thousandth place tells us to leave the 4 in the hundredth place.

\(v\approx0.24 \ m/s\)

The velocity of the turtle is about 0.24 meters per second.

Answer:

not realy

Explanation:

dancing is a way of exercise and liking a song or you're just happy etc.

Answer:

Probably skin cancer

Explanation:

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