Pleaseee help as soon as possible!!

Mary Anne walks 1000 meters north to the store and walks back 900 meters south to her friends house. The friend’s house is 100 meters to the north of Mary Anne’s house. What was Mary Anne’s Travel Distance?
-2000 meters (I chose this and got it wrong)
-100 meters south
-1900 meters
-100 meters

Answer: Trail Braking!

Explanation: Trail braking is used to smoothly and gradually reduce brake pedal pressure at the end of a braking maneuver.

Option A. trail braking.

In four-wheel vehicles, trail braking is using the brakes past the corner entrance, as opposed to the normally taught practice of releasing the brakes before starting the turn. It creates weight transfer to the front tires, increasing their traction and reducing understeer.

Trail-braking allows a driver to brake later by extending the braking zone into the corner. It also improves the car's turn-in response by increasing the load on the front tires to maximize grip. Together, these result in higher corner entry speed and reduced time through the corner.

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If the cloud is transparent, milky, thin layers, rain within the next 2 hours, then the cloud you are seeing is most likely a type of altocumulus cloud.

Altocumulus clouds are generally characterized by their white or gray color, and can sometimes appear milky or translucent. They often form in layers, and can be thin or thick depending on the conditions.

Altocumulus clouds are typically found at medium altitudes, between 6,500 and 20,000 feet and are often associated with unsettled weather conditions.

While they don't necessarily indicate that rain is imminent, altocumulus clouds can be a sign that a change in the weather is on the way.

Thus, if it is likely to rain in the next 2 hours, then the cloud must be altocumulus clouds.

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Explanation:

This equation for acceleration can be used to calculate the acceleration of an object that is acted on by a net force. For example, Xander and his scooter have a total mass of 50 kilograms. Assume that the net force acting on Xander and the scooter is 25 Newtons. What is his acceleration? Substitute the relevant values into the equation for acceleration:

a=Fm=25 N50 kg=0.5 Nkg

The Newton is the SI unit for force. It is defined as the force needed to cause a 1-kilogram mass to accelerate at 1 m/s2. Therefore, force can also be expressed in the unit kg • m/s2. This way of expressing force can be substituted for Newtons in Xander’s acceleration so the answer is expressed in the SI unit for acceleration, which is m/s2:

a=0.5 Nkg=0.5 kg⋅m/s2kg=0.5 m/s2

When two sound waves have the same amplitude, wavelength, and direction of travel, and a phase difference of 6π, they exhibit constructive interference. The perfectly aligned crests and troughs result in the superposition of the waves, leading to an increased amplitude in the combined wave.

When two sound waves are traveling through the same medium with the same amplitude, wavelength, and direction of travel, and their phase difference is 6π, they exhibit constructive interference.

Constructive interference occurs when two waves are perfectly in phase, meaning their crests and troughs align. This alignment leads to the superposition of the waves, resulting in a combined wave with an increased amplitude.

To understand why this is the case, let's consider the mathematical relationship between the phase difference and interference. The phase difference (Δφ) between two waves is given by the equation Δφ = 2π(Δx / λ), where Δx is the path difference and λ is the wavelength. In constructive interference, the phase difference is a multiple of 2π, meaning Δφ = 2πn, where n is an integer.

In this case, the phase difference is 6π, which can be written as 2π(3). Since 3 is an integer, the condition for constructive interference is satisfied. This means that the two waves are perfectly aligned and their crests and troughs coincide at every point along their paths.

As a result, the amplitudes of the waves add up, leading to an overall increase in the amplitude of the combined wave. This constructive interference produces a stronger and louder sound at the points where the waves overlap.

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The question probable may be:

Two sound waves are traveling through the same medium. They have the same amplitude, wavelength, and direction of travel. If the phase difference between them is 6π, what type of interference do they exhibit? Why is that the case?

vi = initial speed = 75 miles/hour =167.7 m/s

vf = final speed = 25 miles/hour = 55.9234 m/s

t = time = 2.5 seconds=

a = acceleration

Replacing with the values given:

a = 44.74 m/s^2

Answer:

Particles in a: gas are well separated with no regular arrangement. liquid are close together with no regular arrangement. solid are tightly packed, usually in a regular pattern.

i hope this helps your answer

Answer:

liquids vibrate, move about, and slide past each other. solids vibrate but generally do not move from place to place.

Experiments with the dynamics track provide a practical and visual way to demonstrate the laws of motion proposed by Newton, which are still fundamental to our understanding of physics today.

What is Newton's First Law?

Newton's first law of motion states that an object at rest will remain at rest, and an object in motion will continue to move at a constant velocity in a straight line, unless acted upon by an unbalanced force. To demonstrate this, a cart or ball can be placed on the track and allowed to roll with no additional forces acting on it. The object will continue to move at a constant velocity until it is stopped by friction or another force.

Experiments with a dynamics track can provide insights into the fundamental laws of motion proposed by Sir Isaac Newton. The dynamics track consists of a track with a level, smooth surface, which allows objects to slide or roll along it with minimal friction. The experiments usually involve a cart or a ball, and various additional objects such as weights, springs, and pulleys, to test the laws of motion.

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The speed of the particle when it enters the magnetic-field region is 120,000 m/s.

Magnetic force on the particle is given as;

F = qvB

where;

From Newton's second law, force on an object is given as;

F = ma

where;

ma = qvB

v = ma/qB

v = (3 x 10⁻² x 12)/(3 x 10⁻⁶ x 1)

v = 120,000 m/s

Thus, the speed of the particle when it enters the magnetic-field region is 120,000 m/s.

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Answer:

the soup will transfer its thermal energy to the spoon

Hope this helps! Can you please mark me brainliest? (also can you guys answer my recent questions? thanks ^^ )

Answer:

0.4166666667 m/s

Explanation:

The amount of work done by the gas is proportional to the pressure and the change in volume, as well as the efficiency of the process. If the pressure and volume are known, the work done by the gas can be calculated by multiplying these values by the efficiency of the process.

The amount of work done by a gas when it expands is proportional to the change in volume, pressure, and temperature. According to the first law of thermodynamics, the energy of a closed system is conserved, so the work done by the expanding gas is equal to the energy transferred from the gas to the environment in the form of work. Therefore, the work done by the gas is equal to the change in energy of the system. Assume that the process is 10% efficient. Then, only 10% of the energy available to the system is converted into work. This means that the remaining 90% of the energy is lost to the environment in the form of heat. As a result, the amount of work done by the gas expanding into the atmosphere is given by the formula

W = E x η, where W is the work done by the gas, E is the energy available to the system, and η is the efficiency of the process. The energy available to the system is determined by the difference between the internal energy of the gas before and after the expansion. The internal energy of a gas is determined by its temperature, pressure, and volume.

Assuming that the temperature and pressure are constant, the change in internal energy is proportional to the change in volume. Therefore, the energy available to the system is equal to the product of the pressure and the change in volume: E = P x ΔV, where P is the pressure of the gas and ΔV is the change in volume during the expansion. Substituting this equation into the formula for work, we get W = P x ΔV x η.

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Answer:

The current will flow in an anticlockwise direction in the loop.

Explanation:

According to Lenz law, the induced current acts in such a way as to oppose the motion or action that produces it. A magnetic field pointing straight upwards implies that the north pole is dominant pole. The induced current is produced due to the decreasing magnetic field; which will cause the current to flow in an anticlockwise direction in the coil, so as to replace the decaying or decreasing magnetic field.

NB: A clockwise current produces a south magnetic pole, while an anticlockwise current flow produces a north magnetic pole.

The velocity of the third piece is 124.02 m/s at 1.05⁰ below the horizontal.

The velocity of the third piece is calculated from the principle of conservation of linear momentum.

mu = m₁u₁ + m₂u₂ + m₃u₃

where;

6(22)sin(0) = 2(10)sin32 - 1(8)sin(28) + 3u₃y

0 = 6.84 + 3u₃y

u₃y = -6.84/3

u₃y = -2.28 m/s

ΔP = Pf - Pi = J

where;

2640(0.1) = 2(10)cos32 +  1(8)cos(28) + 3u₃x - 6(22)

264 = -108 + 3u₃x

3u₃x = 372

u₃x = 372/3

u₃x = 124 m/s

u₃ = √(124² + 2.28²)

u₃ = 124.02 m/s

tanθ = u₃y/u₃x

tanθ = 2.28/124

tanθ = 0.018

θ = 1.05⁰ (below the horizontal)

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Answer:

I am sure it is A because no chemical change occurs and it is a physical change.  If you can Brainllest than that would be great but if you wanna you don't have to. Hope this helps!! If wrong sorry.

Explanation:

The figure (E) is the great free diagram, showing the forces operating on the blocks at period t = 0.05 seconds, according to the provided statement.

Vehicle operation on a surface- Whenever an vehicle is still being driven, the engine exerts a force on the wheel that propels the vehicle forward. The car can't move ahead because of the friction between wheels and indeed the ground. Consequently, the car keeps from skidding.

Although friction is assumed to be created by the reactions here between microscopic bumps on surfaces when they rub against one other, scientists are not quite clear what causes it. It is challenging to for surfaces to slide over one another because the peaks on each face flex and exert stress on one another.

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The complete question is-

A block on a level horizontal surface of negligible friction is initially traveling at 20 m/s to the left. A horizontal force F is exerted to the right on the block for the time interval 0 <1 <0.10 s. The magnitude of the force is given as a function of time I by the equation F = at. where a = 240 N/s and t is in seconds.

Which of the following free-body diagrams best shows the forces acting on the block at time t= 0.05 s?

Answer:

Therefore, the force required to accelerate a 500 kg object at a rate of 10 m/s^2 is 5000 Newtons (N).

Explanation:

The force required to accelerate an object can be calculated using the formula:

force = mass x acceleration

where "mass" is the mass of the object being accelerated, and "acceleration" is the rate at which the object's velocity is changing.

In this case, the mass of the object is 500 kg, and the acceleration is 10 m/s^2. Plugging these values into the formula gives:

force = mass x acceleration

force = 500 kg x 10 m/s^2

force = 5000 N

Therefore, the force required to accelerate a 500 kg object at a rate of 10 m/s^2 is 5000 Newtons (N).

Answer:

D

Explanation:

Sum of the concentrations of each of reactant species is equal to the sum of the concentrations of each of the product species

Answer: C. Stored energy

Friction

Change in motion

Deformation

What is Force?

Force is an influence that can cause an object to accelerate or deform. It is a vector quantity that has both magnitude and direction, measured in units of newtons (N). Force can result from the interaction between two physical bodies, such as when two objects collide or when a force is applied to an object.

Change in motion: Forces can cause an object to start moving, stop moving, change direction, or change speed.

Deformation: Forces can deform or change the shape of an object. For example, a force can stretch a spring, bend a wire, or compress a sponge.

Stress: Forces can create stress within an object, which is the internal force that resists deformation or change in shape. Too much stress can cause an object to break or fail.

Friction: Forces can cause friction, which is the force that resists the motion of two surfaces in contact. Friction can cause objects to slow down, stop moving, or prevent them from sliding.

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8.27 x 1013 meres is the orbital radius.

Jupiter's mass, 1.9 x 1027 kg, and the time interval, 16.9 days, are equal to 1.46 x 106 seconds. The radius is needed, thus r. Solution

The moon must be held in its orbit by a gravitational force equal to the centripetal force between Jupiter and the moon.

6.67 x 10⁻¹¹ N/m²kg

2 x 1.9 x 10/27 x 1.46 x 10'6 / 4 r = 6.85 x 102'7 G = 6.67 x 10'11 N/m2kg2 r = 8.27 x 10'7

The second-largest moon in Jupiter's orbit and the third-largest moon in the solar system is called Callisto. Of all the objects in our solar system, its surface has the most craters.

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The substances that are altered and the chemicals on the right side of a chemical equation are the results of a chemical reaction. B and D are the appropriate choices.

Reactants are the substance(s) in a chemical equation to the left of the arrow. A component that is present at the outset of a chemical reaction is known as a reactant. Products are the substance(s) to the right of the arrow. A substance that remains after a chemical reaction is complete is known as a product. The creation of products from the reaction of two reactants is known as a chemical reaction. The compounds that result from a reaction are called products. The substances that are original materials are the reactants.

On the left side of the reaction are the reactants, and on the right are the products. B and D are the proper choices as a result.

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Answer:

Explanation:

We may notice that change in velocity can be obtained by calculating areas between acceleration lines and horizontal axis ("Time"). Mathematically, we know that:

\(v_{b}-v_{a} = \int\limits^{t_{b}}_{t_{a}} {a(t)} \, dt\)

\(v_{b} = v_{a}+ \int\limits^{t_{b}}_{t_{a}} {a(t)} \, dt\)

Where:

\(v_{a}\), \(v_{b}\) - Initial and final velocities, measured in meters per second.

\(t_{a}\), \(t_{b}\) - Initial and final times, measured in seconds.

\(a(t)\) - Acceleration, measured in meters per square second.

Acceleration is the slope of velocity, as we know that each line is an horizontal one, then, velocity curves are lines with slopes different of zero. There are three region where velocities should be found:

Region I (t = 0 s to t = 4 s)

\(v_{4} = 2\,\frac{m}{s} +\int\limits^{4\,s}_{0\,s} {\left(-2\,\frac{m}{s^{2}} \right)} \, dt\)

\(v_{4} = 2\,\frac{m}{s}+\left(-2\,\frac{m}{s^{2}} \right) \cdot (4\,s-0\,s)\)

\(v_{4} = -6\,\frac{m}{s}\)

Region II (t = 4 s to t = 6 s)

\(v_{6} = -6\,\frac{m}{s} +\int\limits^{6\,s}_{4\,s} {\left(1\,\frac{m}{s^{2}} \right)} \, dt\)

\(v_{6} = -6\,\frac{m}{s}+\left(1\,\frac{m}{s^{2}} \right) \cdot (6\,s-4\,s)\)

\(v_{6} = -4\,\frac{m}{s}\)

Region III (t = 6 s to t = 10 s)

\(v_{10} = -4\,\frac{m}{s} +\int\limits^{10\,s}_{6\,s} {\left(2\,\frac{m}{s^{2}} \right)} \, dt\)

\(v_{10} = -4\,\frac{m}{s}+\left(2\,\frac{m}{s^{2}} \right) \cdot (10\,s-6\,s)\)

\(v_{10} = 4\,\frac{m}{s}\)

Finally, we draw the object's velocity graph as follows. Graphic is attached below.

The velocity of a body under constant acceleration increases steadily with time

Please find attached the required velocity graph for values of t that are separated by Δt = 2s

The reasons the attached graph is correct are given as follows:

The initial velocity of the object at t = 0 is v = 2.0 m/s

The first point on the graph is (0, 2.0)

The acceleration from t = 0, to t = 4, a₁ = -2 m/s²

The velocity at t = 4 s, v₂ = 2.0 + (-2)×4 = -6

Therefore, the next point on the graph is (4, -6)

From t = 4 to t = 6, the acceleration, a₂ = 1 m/s²

Therefore, v₃ = -6 + 1 × 2 = -4

The third point on the velocity graph is (6, -4)

From t = 6 s to t = 10 s, we have, the acceleration, a₃ = 2 m/s²

The velocity, v₄ = -4 + 4 × 2 = 4

Therefore, the fourth point on the velocity graph is (10, 4)

With the above points, the velocity graph can be plotted using MS Excel

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Answer:

68.5 meters

Explanation:

To solve this problem, we can use trigonometry and create a right triangle with the river as the hypotenuse.

Let's call the width of the river "w". We can use the sine function to find the length of the opposite side of the triangle (the distance from the surveyor to the tree).

sin(33.4°) = opposite/hypotenuse

sin(33.4°) = w/x

w = x * sin(33.4°)

w = 118 m * sin(33.4°)

w = 68.5 m

Therefore, the width of the river is approximately 68.5 meters.

Answer:

Qc>0; Qh>0

Explanation:

In the context of energy transfers with hot and cold reservoirs, the sign convention is QC > 0; QH < 0.

The conversion of one form of energy into another, or the movement of energy from one place to another is known as energy transfer.

Given that there are two energy reservoirs. Heat and work sign convention is:

As, heat is going out that from the hot reservoir ,it is taken as negative- QH < 0.

As heat is coming inside the cold reservoir that is why it is taken as positive - QC > 0.

Therefore, QC > 0 and QH < 0 is the correct answer.

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Answer:

The range of the projectile is 60 m

Explanation:

Horizontal Motion

When an object is thrown horizontally with a speed vo from a height h, it describes a curved path ruled exclusively by gravity until it eventually hits the ground.

The horizontal component of the velocity is always constant because no acceleration acts in that direction, thus:

\(v_x=v_o\)

The vertical component of the velocity changes in time because gravity makes the object fall at increasing speed given by:

\(v_y=g.t\)

The horizontal distance is calculated as a constant speed motion:

\(x = v_x.t\)

Knowing the crossbow is fired horizontally at vo=vx=15 m/s and it takes t=4 s to hit the ground, thus the range of the projectile is:

x = 15*4 = 60

The range of the projectile is 60 m

Answer:

It depends on the electro-magnetic frequency of the light and object's nature of atoms.

The 10/90 principle can be a powerful tool for taking control of your situation and improving your life. By taking responsibility for what you can change and focusing on your reaction to the situation, you can make positive changes in your life and become the master of your own destiny.

The 10/90 principle refers to the idea that life is made up of 10% of what happens to you and 90% of how you respond to it. In other words, you may not be able to control what happens to you, but you can control your reaction to it. By taking responsibility for what you can change rather than being a victim of what you cannot change, you can take control of your situation and improve your life.One example of a situation where the 10/90 principle could be applied is losing a job. Losing a job can be a devastating experience, and it can be easy to feel like a victim in this situation. However, by applying the 10/90 principle, you can take control of your situation and make positive changes in your life.The first step in applying the 10/90 principle in this situation would be to take responsibility for what you can change. This could mean updating your resume, networking with others in your field, and applying for new jobs. By taking action and doing what you can to find a new job, you are taking control of your situation and improving your chances of finding a new job.
The second step would be to focus on your reaction to the situation. Instead of dwelling on the negative aspects of losing your job, try to focus on the positive aspects. This could mean using the extra time to pursue a new hobby or spend more time with family and friends. By focusing on the positive aspects of the situation, you are taking control of your reaction and improving your overall well-being.
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Answer:

Object with the mass 14g

Explanation:

First object-K.E=1/2mv²

1/2×11×3.6²

=71.28J

Second object- K.E=1/2×0.45×22²

K.E=108.90J

Third object- K.E=1/2×0.014×42²

K.E=12.35J

So second object has the highest kinetic energy