HELP PLS MARKING BRANLIST 100 Pts TAKING TEST RN


Which of the following is an example of deceleration?

- 10 m/s


17 m/s


3 m/s2


-3 m/s2

Answer:oxygen is converted to chemical energy

Explanation:

I got it right

Answer:

thanks

Explanation:

Explanation:

A concentrated solution has a relatively greater amount of solute to solvent than other solutions of the same solute and solvent. A diluted solution has a relatively smaller amount of solute than similar solutions.

Answer:

Answer:

3x + 8

Explanation:

Step-by-step explanation:

Remove the parenthesis and group like

terms.

x + 5 + 2x + 3

= 3x + 8

hope this helps!

When the line without wings and the line with wings were the same size, I reported the line without wings as being bigger about 10% of the time. This is consistent with the Muller-Lyer illusion.

The Muller-Lyer illusion is a well-known optical illusion in which people perceive a line with inward-pointing arrowheads as being longer than a line with outward-pointing arrowheads, even though the lines are actually the same length.

There are a number of theories about why the Muller-Lyer illusion occurs. One theory is that the inward-pointing arrowheads suggest the presence of a receding object, while the outward-pointing arrowheads suggest the presence of a coming object. This difference in perspective can lead people to perceive the lines as being different lengths.

Another theory is that the Muller-Lyer illusion is caused by the way our brains process visual information. When we see a line with inward-pointing arrowheads, our brains interpret this as a sign that the line is pointing away from us. This can lead us to perceive the line as being longer than it actually is.

The Muller-Lyer illusion is a fascinating example of how our brains can be fooled by our senses. It is a reminder that our perceptions are not always accurate and that we should be careful about making judgments based on our first impressions.

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A. The momentum of an object is the same before and after a collision.

The word Momentum is defined as the product of the mass of a object and its velocity. Momentum is a vector quantity that is it has both magnitude and direction. Newton's second law of motion says that the time rate of change of momentum is equal to the force acting on the an object.

The conservation of momentum is defined as  within some problem area , the quantity of momentum stays constant; momentum is neither created nor destroyed, but just changes through the action of forces as mentioned by Newton's laws of motion.

So we can conclude that option A is the correct answer.

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Answer:

most potential is someone in an airplane. second is position A, third is position c, fourth is position D, fifth is position B and least potential is a person standing on the ground.

Explanation:

hopefully you understand what I wrote

Answer:

An engine made of heat!

Okay actual answer, A heat engine is a mechanical energy converter that transforms heat or thermal energy to mechanical energy.

Answer:

b

Explanation:

Answer:

B. Climate change includes global warming as well as other factors

Explanation:

Global warming is just one of the many aspects of climate change.

Answer:

5.00 × 10^14 Hz

Explanation:

The wavelength of the light in the medium can be calculated by using the formula:

λ = v / f

Where;

λ = wavelength (m)

v = speed of light

f = frequency (Hz)

From the provided information, λ = 600 nm (600 × 10^-9m), v = 3 × 10^8m/s.

λ = v / f

λ = 3 × 10^8/600 × 10^-9

λ = 0.005 × 10^(8+9)

λ = 0.005 × 10^17

λ = 5.00 × 10^14 Hz

The frequency of the light in the medium is 5.00 × 10^14 Hz

Answer:B

Explanation:

They find that the gravitational force on the spaceship is inversely proportional to the distance from the Earth. The correct option is B.

The gravitational pull would be stronger if the gap were cut in half. Coulomb's law, states that the gravitational force between two items in the universe is directly proportional to the product of the masses of the objects.

And inversely proportional to the distance between them is used to calculate the gravitational force between two objects in the universe. Whether there is a body there or not, gravity is the force between two bodies.

Everybody in the cosmos is drawn to every other body by a force that is directly inversely correlated to the square of the distance between them and directly inversely correlated to the product of their masses.

Therefore, the correct option is B. inversely proportional to the distance from the Earth.

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Consider a particle moving to the left with some speed v. If we take leftward to be the negative direction, then the particle's velocity is -v, and it's moving in the negative direction.

Now give the particle a positive acceleration pointing rightward. The particle will eventually slow to a stop before increasing its speed in the positive direction.

So the answer is yes, the direction in which a body is moving can be reversed with constant acceleration.

Answer:

Point A

Explanation:

Because it reaches maximum height

Answer:

i took g = 9.8m/s

A. 1.16secs

B. 2.32secs

C. 6.57m

D. 57.91m

Explanation:

A. How long does the Missile take to reach ot peak?

Time taken (t) =( U²Sin (angle) )/g

u = initial velocity = 25m/s

angle given = 30°

g = acceleration due to gravity = 9.8m/s²

t = U² x Sin (angle) / g

t = 25² x Sin(30)/9.8

t = 1.61secs

B. How long is the missile in the air in total?

T = 2t

T = 2 x 1.61 = 2.32 secs

C. what maximum Height does the missile reach?

D. How far does the missile travel Horizontally?

Answer:

True

Explanation:

I took the quiz and got it right.

TRUST

The "max out" method, also known as the "1RM" (One Repetition Maximum) method, is commonly used in strength training to determine the maximum amount of weight an individual can lift for a particular exercise.

The purpose of this method is to assess muscular strength accurately. While it is essential to perform warm-up sets to prepare the body for intense lifting, the process of determining the 1RM involves a specific protocol:

Warm-up Sets: Before attempting the 1RM, it is crucial to warm up the muscles and joints properly. Warm-up sets are typically performed with lighter weights and higher repetitions to gradually prepare the body for the heavier load.

Complete Sets: After the warm-up sets, the individual performs one or more "complete sets" with progressively heavier weights, but not at maximal effort. These sets help acclimate the body to heavier loads and prepare the nervous system for the upcoming maximal lift.

1RM Attempt: Once adequately warmed up and prepared, the individual makes an attempt to lift the heaviest weight possible for one repetition. It is essential to have a spotter or a qualified trainer to ensure safety during this maximal effort lift.

Rest: After the 1RM attempt, it is essential to allow sufficient rest and recovery, as attempting maximal lifts can be physically and mentally demanding.

It's important to note that determining 1RM carries a higher risk of injury compared to typical strength training. It's best to perform 1RM assessments under the guidance of a qualified trainer or coach who can provide proper instruction and ensure safety throughout the process. Additionally, the 1RM should be assessed periodically, as it can change over time with training and adaptation.

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Newton's second law and the Atwood machine are often used together in high school physics labs to study the relationship between force, mass, and acceleration.

Newton's second law states that the acceleration of an object is directly proportional to the net force applied to it and inversely proportional to its mass.

The Atwood machine is a simple device that consists of a pulley and two masses connected by a string. By varying the masses and measuring the resulting acceleration, students can experimentally verify Newton's second law.

In the lab, students typically set up the Atwood machine, measure the masses of the two objects, and attach them to opposite ends of the string. They then release the system and measure the time it takes for the masses to move a certain distance.

Using this data, they can calculate the acceleration of the system. By applying Newton's second law, which states that the net force is equal to the mass times the acceleration, students can analyze the relationship between the masses and the resulting acceleration.

This lab provides a hands-on approach for students to understand and apply Newton's second law, reinforcing the concept of force, mass, and acceleration. It also helps students develop skills in data collection, analysis, and drawing conclusions based on experimental evidence.

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The real power being delivered to the induction motor is 2880 watts or 2.88 kilowatts. This power is the actual power that is being used to drive the motor and perform useful work. It is important to note that in an AC circuit, the power factor can affect the real power being delivered.

The real power can be calculated using the formula: P = V x I x PF, where P is the power, V is the voltage, I is the current, and PF is the power factor. In this case, the voltage is 240 V, the current is 15 A, and the power factor is 0.8. Therefore, the real power can be calculated as follows:

P = 240 x 15 x 0.8
P = 2880 watts

So, the real power being delivered to the induction motor is 2880 watts or 2.88 kilowatts. This power is the actual power that is being used to drive the motor and perform useful work. It is important to note that in an AC circuit, the power factor can affect the real power being delivered. Therefore, it is necessary to consider the power factor when calculating the real power.

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Answer:

Li has less mass and therefore less inertia, so he can change his motion more easily than Raj.

Explanation:

Answer:

Li has less mass and therefore less inertia, so he can change his motion more easily than Raj.

Explanation:

When a water molecule is placed between oppositely charged metal plates, the region of the molecule that is attracted to the negative plate is the positive end, which consists of two hydrogen atoms. This is due to the polar nature of water molecules.

Water molecules are composed of one oxygen atom and two hydrogen atoms. The oxygen atom has a greater electronegativity than hydrogen, resulting in an uneven distribution of electron density within the molecule.

As a result, the oxygen end of the water molecule carries a partial negative charge (δ-) while the hydrogen ends carry partial positive charges (δ+).

When placed between the oppositely charged plates, the positive end of the water molecule (the hydrogen ends) is attracted to the negative plate, while the negative end (the oxygen atom) is repelled by the negative charge on the plate.

This alignment occurs due to the electric field generated by the charged plates, causing the water molecule to align itself accordingly.

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Puck mass (m) and J (impulse), initial and ultimate velocities are the known and unknown quantities, respectively.

The integral of a force, F, over the time period over which it acts, t, is known as an impulse in classical mechanics and is denoted by the letters J or Imp. Since force is a vector quantity, impulse also belongs to this category. An object experiences an impulse, which results in an equivalent vector change in its linear momentum along with the subsequent direction. The kilogram meter per second (kg m/s) and newton second (N s), are dimensionally equal units of momentum and impulse, respectively. In the British Gravitational System, the unit is the slug-foot per second (slugft/s), but the equivalent English engineering measure is the pound-second (lbfs). As long as it is acting, a resulting force accelerates the body and alters its velocity.

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The applications, either for diagnostic purposes or for therapeutic purposes, involve the use of X-rays----CT scan radiography ,external beam radiation therapy, fluoroscopy.

How is CT used for treatment planning?

CT planning enables more accurate localisation of both tumour and normal organs in addition to providing an accurate body contour and inhomogeneity corrections.

What is difference between CT scan and fluoroscopy?

Overall, fluoroscopy is a safe procedure, but potential risks include burns or radiation-induced injuries to the skin. On the other hand, CT scans are still snapshots of a “slice” of the body. They use X-rays to help your doctor view important organs

What is a fluoroscopic procedure?

During a fluoroscopy procedure, an X-ray beam is passed through the body. The image is transmitted to a monitor so the movement of a body part or of an instrument or contrast agent (“X-ray dye”) through the body can be seen in detail

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When a solid cylinder is freely rolling up an inclined plane, the direction of the friction force acting on the cylinder is opposite to the direction of its motion. The friction force acts at the point of contact between the cylinder and the inclined plane.

As the solid cylinder rolls up the inclined plane, it experiences a gravitational force pulling it downward along the incline. To prevent the cylinder from slipping or sliding back down, a friction force arises at the point of contact between the cylinder and the inclined plane.

According to Newton's third law of motion, the friction force always acts in the opposite direction to the motion or attempted motion. Therefore, as the cylinder rolls up the incline, the friction force will act in the opposite direction to its motion, which is downward along the incline.

The point at which the friction force acts is at the contact point between the cylinder and the inclined plane. This friction force provides the necessary torque to keep the cylinder rolling without slipping, enabling it to overcome the gravitational force and ascend the incline. The magnitude of the friction force depends on the coefficient of friction between the surfaces in contact and other factors such as the angle of inclination and the mass and radius of the cylinder.

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Answer:

hi = 12mm or 1.2cm

Explanation:

XOXO

Kit ^w^

A slide projector has a magnification of 50. 12mm or 1.2cm.

Bringing an object as close to the eye as feasible when wishing to observe an object's details is instinctual. The angle that an object subtends at the eye increases with proximity to the eye, making it appear larger.

However, if an item is too near, the eye will no longer be able to generate a distinct image. The creation of a "virtual image" that may be comfortably observed is made possible by the use of a magnifying lens between the observer and the object.

The magnifier should be positioned exactly in front of the eye to provide the clearest image possible. Once a clear image of the thing is present, the object of interest is brought closer to the eye.

Therefore, A slide projector has a magnification of 50. 12mm or 1.2cm.

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The vertical acceleration of the yo yo cena of mass is 0.66 m/s².

We know that, T = M*a

And T is given as 2M/3

2M/3 = M*a

So, a = 0.66 m/s²

Acceleration is the general term for any process where the velocity changes. There are only two ways to accelerate either by increasing the speed or decreasing direction, or both. The reason for this is that velocity includes both a speed and a direction.

You cannot possibly be accelerating if you don't also change you direction and speed, regardless of how swiftly you are travelling. Due to this, a jet experiences no acceleration even when it is moving at a high speed. In this case, 800 miles per hour, because its velocity is constant.

When it lands, the jet will accelerate as it slows down and quickly come to a stop.

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When a speaker is lowered into water, the wavelength of the sound decreases.

When a speaker is lowered into water, the speed of sound changes, as the density and compressiblility of water are different from that of air.

In general, the speed of sound in water is higher than the speed of sound in air.

The wavelength of a sound wave is related to its speed and frequency by the equation:

wavelength = speed/frequency

Since the speed of sound increases when the speaker is lowered into water, but the frequency of the sound remains the same, the wavelength of the sound must decrease.

This means that the distance between adjacent peaks or troughs of the sound wave decreases as the speaker is lowered into water.

In other words, when a speaker is lowered into water, the wavelength of the sound decreases

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Answer:

+5 m/s^2

Explanation:

acceleration = Δv ÷ t

Δv = Final Velocity - Initial Velocity

Δv = 50 - 0 = 50

Acceleration = 50 m/s ÷ 10s

Acceleration = +5 m/s^2

Answer:

It would be 2600

Explanation:

M/S stands for meters per second. If it moved 1 meter for 2600 seconds, than it would be 2600. You just multiply 2600 by 1! I hope this helps :D