A Student is walking to their bus stop at velocity of 2 m/s south, she sees the bus coming and her velocity changes to 5 m/s south in 2 seconds. What is her average acceleration?

Answers

Answer 1

Answer:

1 m/s²

Explanation:

acceleration = (final velocity - initial velocity) ÷ time taken

given,

a = ?v = 5 m/su = 2 m/st = 2 s

a = (5-2) ÷ 3

a = 1 m/s²


Related Questions

what are the three essential diagnostic features of anorexia nervosa

Answers

The three essential diagnostic features of anorexia nervosa, as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), are:

1. Restriction of energy intake: This involves significantly limiting the amount of food intake, leading to low body weight in relation to age, sex, developmental trajectory, and physical health. It is often accompanied by a fear of gaining weight or becoming fat.

2. Intense fear of gaining weight or becoming fat: Individuals with anorexia nervosa have an excessive and persistent fear of gaining weight, even when they are significantly underweight. They may have distorted body image perceptions and a preoccupation with their shape and weight.

3. Disturbance in self-perceived weight or shape: Anorexia nervosa is characterized by a persistent lack of recognition of the seriousness of low body weight and its impact on health. Despite being underweight, individuals with anorexia may still perceive themselves as overweight or have a distorted body image.

These diagnostic features are crucial for identifying and diagnosing anorexia nervosa, but it is important to consult a qualified healthcare professional for a comprehensive evaluation and diagnosis.

The three essential diagnostic features of anorexia nervosa, as defined by the Diagnostic and Statistical Manual of Mental Disorders (DSM-5), are:

Restriction of energy intake relative to requirements: This refers to the persistent limitation of food intake, leading to significantly low body weight. Individuals with anorexia nervosa often engage in severe dieting, calorie counting, Intense fear of gaining weight or becoming fat: People with anorexia nervosa have an intense and irrational fear of gaining weight, even when they are already significantly underweightDisturbance in self-perceived weight or shape: DSM-5 An essential feature of anorexia nervosa is the presence of a distorted perception of one's body weight or shape.

It is important to note that these diagnostic features must be present and significantly impair the individual's functioning in order to meet the criteria for anorexia nervosa. Additionally, there may be other associated features and behaviors,

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A cube has a density of 3.11 g/cc and measures 5.95 cm on one of its sides. Given this information, what is the mass of this cube (in kg)

Answers

The mass of the cube is 0.65768 kg.

The density (d) of a substance is calculated by dividing its mass (m) by its volume (v). Mathematically, the density of the cube is given by: d = m/v

Where, d is density, m is mass and v is volume of the cube.Volume of cube is calculated using the formula:

Volume of cube = length³= (5.95 cm)³= 211.201375 cm³.

Thus, the volume of the cube is 211.201375 cm³.Using the formula of density; we have,

3.11 g/cm³ = m / 211.201375 cm³

We will solve this formula for m:m = d * v = 3.11 g/cm³ * 211.201375 cm³m = 657.68 g or 0.65768 kg (when rounded to 5 decimal places)

Therefore, the mass of the cube is 0.65768 kg.

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While an object moves along a curved path it ______ possible for acceleration to be zero. which of the choices correctly fills in the blank?

Answers

While an object moves along a curved path it is not possible for acceleration to be zero.

What is acceleration?

The term acceleration has to do with the change of velocity with time. We know that velocity is a vector quantity. Since velocity is a vector quantity, it means that velocity would have both magnitude and direction.

Given the fact that the magnitude of the velocity of the object that is moving along a curved path may be constant, the direction of the velocity still changes.

Owing to the fact that we must consider both changes in magnitude and direction of velocity, it then follows that while an object moves along a curved path it is not possible for acceleration to be zero.

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While an object moves along a curved path it ______ possible for acceleration to be zero. which of the

Fill in the blanks. a. Atoms of two different elements are​

Answers

atoms of two different elements have vanders wall bond and are not similar in properties individual

ANSWER

Compounds

EXPLANATION

Compounds are made of two or more atoms of different elements, such as water (H2O) and methane (CH4). Atoms are not drawn to scale. Molecules of compounds have atoms of two or more different elements. For example, water (H2O) has three atoms, two hydrogen (H) atoms and one oxygen (O) atom.

Numerical Problems:
a. A man runs 1200 m on a straight line in 4 minutes. Find his velocity.


can anyone tell me with process

Answers

Displacement=1200mTime=4min=4(60)=240s

\(\boxed{\sf Velocity=\dfrac{Displacement}{Time}}\)

\(\\ \sf\longmapsto Velocity=\dfrac{1200}{240}\)

\(\\ \sf\longmapsto Velocity=5m/s\)

if i move 3 m east and 4 m north what is my displacement

Answers

If I move 3 m east and 4 m north, then my displacement would be 5m.

What do you understand by displacement?

In geometry and mechanics, displacement is defined as a vector whose length is the shortest distance from initial to the final position of a point P undergoing the motion.

If an object moves relative to the reference frame—for example, if professor moves to the right relative to whiteboard or passenger moves toward the rear of airplane—then object's position changes. And this change in position is known as displacement.

Given AB= 3m east and BC= 4m north

AC= √ 3² + 4²= 25

So, AC, displacement = 5m

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A body was found in the basement of the Underwater Basket Weaving Building at 12:00 noon today, where the temperature is a steady 65 degrees Fahrenheit. When found, the core temperature was 92.7 degrees Fahrenheit. Two hours later, at 2:00 PM, the core temperature had fallen to 88. Assuming that the body temperature was 98.6 at the time of death, use Newton's law of cooling to find the time of death. ROUND TO 2 DECIMAL PLACES. The time of death was about hours before the body was found.

Answers

Using Newton's law of cooling, the time of death could have been 2 hours and 7 minutes before the body was found or around 9:53 AM.

According to Newton's Law of Cooling, the change in temperature of a body is proportional to the difference between its own temperature and the temperature of its surroundings. The law is expressed by the formula:

T(t) = T_a + (T_0 - T_a)e^(-kt),

where T(t) is the temperature of the body at time t, T_0 is the initial temperature of the body, T_a is the ambient temperature (in this case, 65 degrees Fahrenheit), and k is a constant of proportionality.

To find the time of death, we need to solve for t in the formula above. We know that at the time of death, the body temperature was 98.6 degrees Fahrenheit, so T_0 = 98.6. We also know that two hours later, the core temperature had fallen to 88 degrees Fahrenheit, so T(2) = 88. Plugging these values into the formula, we get:

88 = 65 + (98.6 - 65)e^(-k*2)

23 = 33.6e^(-2k)

ln(23/33.6) = -2k

0.3257 = k

Now we can solve for t using the formula:

T(t) = 65 + (98.6 - 65)e^(-0.3257t)

We want to find the time when the body temperature was 98.6 degrees Fahrenheit, so we plug that value in for T(t) and solve for t:

98.6 = 65 + (98.6 - 65)e^(-0.3257t)

33.6 = 33.6e^(-0.3257t)

e^(-0.3257t) = 1

t = ln(1)/(-0.3257)

t = 2.12 ≈ 2 hours and 7 minutes

Therefore, the time of death was about 2 hours and 7 minutes before the body was found or at around 9:53 AM.

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Which of the following is a basic solution?

Answers

Answer:

what exactly are the following?

What sort of math formula would I use to find a solution to a problem like this, please direct me!
A piece of music with a tempo of 100beats per minute (bpm) has a playing time of 3 minutes. The piece is edited to have a playing time of 120beats per minute.
How long will the edited piece play in minutes?
2 point 0 minutes
4 point 0 minutes
3 point 5 minutes
2.5 minutes

Answers

To listen to the music at a tempo of 110 beats per minute (bpm), it takes Pam approximately 3.6 minutes. Given that Pam uses 5 minutes to listen to the music at a tempo of 80 bpm when she feels unhappy.

We can determine the time it takes for her to listen to the music at a tempo of 110 bpm. We can set up a proportion to find the relationship between the two tempos: 80 bpm / 5 minutes = 110 bpm / x minutes To solve for x, we can cross-multiply:

Rounding to the nearest tenth, it takes Pam approximately 6.9 minutes to listen to the music at a tempo of 110 bpm. However, the options provided specify that the answer should be in minutes and rounded to the nearest tenth. Therefore, the answer would be 3.6 minutes This means that when Pam increases the tempo of the music to 110 bpm, it takes her approximately 3.6 minutes to listen to the entire piece.It's important to note that the calculation assumes a linear relationship between tempo and time, which may not always hold true in practice due to various factors such as individual preferences, interpretation, and variations within the music itself. However, for the purpose of this question, we can use the proportion to estimate the time.

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The shape of the curve the projectile follows is a ⋯⋯⋯ Ellipse Circle Straight Line Parabola Question 2 1 pts A projectile is launched at an angle to the horizontal with an initial velocity. This velocity vector can be decomposed into its x and y components. The x-component of the velocity vector is the magnitude of the initial velocity times cosine of the angle the angle itself tangent of the angle sine of the angle

Answers

The shape of the curve that a projectile follows is a parabola.

When a projectile is launched at an angle to the horizontal with an initial velocity, its trajectory forms a parabolic shape. This is due to the combined effects of horizontal and vertical motions. The x-component of the velocity vector represents the velocity in the horizontal direction, while the y-component represents the velocity in the vertical direction.

To decompose the initial velocity vector, we use trigonometric functions. The x-component of the velocity vector is given by the magnitude of the initial velocity multiplied by the cosine of the launch angle. The cosine function relates the adjacent side of a right triangle (horizontal component) to the hypotenuse (initial velocity). Therefore, multiplying the magnitude of the initial velocity by the cosine of the angle gives us the x-component.

On the other hand, the y-component of the velocity vector is given by the magnitude of the initial velocity multiplied by the sine of the launch angle. The sine function relates the opposite side of a right triangle (vertical component) to the hypotenuse (initial velocity). Multiplying the magnitude of the initial velocity by the sine of the angle gives us the y-component.

By considering both the horizontal and vertical components of velocity, we can understand the motion of a projectile and determine its trajectory, which follows a parabolic path.

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A capacitor of unknown charged capacitance c is charged to 100v and the connected across an intially uncharged 60micro f capacitor. If the final potenial diffrence across the 60micro-f capacitor is 40v ,determine c

Answers

If the final potential difference across the 69micro -f then capacitor is 40Mf

We cannot expect simple energy conservation to hold because energy is presumably dissipated as heat in the connection wires or as radio waves while the charge oscillates during the system "settling down" to its final state (40V across the parallel pair of capacitors C and 60 F).

We anticipate that charge will be conserved. Thus, if Q is the initial charge stored on C and q 1 and q2 are the charges on the parallel pair after "settling down," then -

Q= q1+ q2

C(100V) = C(40V) + 60mf(40V)

C= 40Mf

An electrical component that stores electrical energy in an electric field is known as a capacitor. It is made up of two conductive plates separated by a nonconductive material known as a dielectric.

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What's Alpha beta gamma emission??

Answers

Alpha radiation is the name for the emission of an alpha particle in fact an helium nuclei, beta radiation is the emission of electrons or positrons , and gamma radiation is the term used for the emission of energetic photons.

Kinetic energy of a body is increased by by 300% what is percentage increased in momentum

Answers

Answer

100% - double

200% - triple

300% - 4X

For a 300% increase the KE must be 4 time as large

KE2 / KE1 = M V2^2 / M V1^2 = (V1 / V2)^2 = 4

So V2 = 2 V1 for the requested increase

M V2 / M V1 = V2 / V1 = 2

So the momentum would double for a 100% increase

a helium-neon laser beam has a wavelength in air of 633 nm. it takes 1.44 ns for the light to travel through 26.0 cm of an unknown liquid. what is the index of refraction of the liquid?

Answers

The index of refraction of liquid is 4.32 x 10⁻⁸ when He-Ne Laser being used.

Given- He-Ne laser has 633nm wavelength.

Фair=633nm = 633 x 10⁹m

t=1.44ns=1.44 x 10⁹s

d=26cm=0.26m

\(V=\frac{dx}{y}\)

where V is the velocity / ease of the liquid flow , dx is the swept distance and y is time taken for sweeping.

To find the index of refraction of liquid we can employ the following equation for monochromatic source of light.

Фliq=[Фair d ] / [ ct ]

As per Michelson Morley experiment , speed of light=3 x 10⁸m/s

Фliq= [633 x 10⁹ x 0.26]/[3 x 10⁸ x 1.44 x 10⁹]

= 4.32 x 10⁻⁸

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help pls .. Which image shows an example of the strong nuclear force in action?

help pls .. Which image shows an example of the strong nuclear force in action?

Answers

The image that shows an example of the strong nuclear force in action should be considered option d.

What is the strong nuclear force in action?

The strong nuclear force is known as the  strong force or the strong interaction.

This force is strong when it overcomes the repulsive force that lies between the two positively charged protons where the neutrons and protons should be permitted for sticking together.

Hence, The image that shows an example of the strong nuclear force in action should be considered option d.

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You walk east for 30 m, then decide to walk north foranother 30 m. What is the angle of direction of your displacement?​

Answers

Answer:

Displacement is 42.426 m NE and the angle is opposite/adjacent or 30/30 which would equal 1 degree which doesn't seem right but hopefully its an answer.

Explanation:

Bill runs a total of 3,600m. What is this distance in kilometres?

Answers

Answer:

3.6 Km..........................................

What is the point on the globe to the right that receives 24 hours of daylight on the December solstice?

Answers

Answer:

north of 66.5 degrees latitude;90 degrees minus and filt of earth axis receive 24 hrs of sunlight

In aluminum, the speed of sound is 5100 m/s What the wavelength a sound wave of middle C at 264 Hz traveling through aluminum?

Answers

Answer:

19.32

Explanation:

the wavelength formula is speed divided by frequency

speed = 5100m/s

frequency = 264Hz

so wavelength = 5100 m/s / 263 Hz

= 19.32

find the resonant frequency of an lc circuit consisting of a 0.26 μf capacitor and a 1.4 mh inductor.

Answers

An LC circuit consists of an inductor and a capacitor. The resonant frequency of an LC circuit can be calculated using the following formula: f = 1 / (2π√LC)  where, f is the resonant frequency, L is the inductance of the circuit, C is the capacitance of the circuit.

Given, The capacitance of the circuit, C = 0.26 μF The inductance of the circuit, L = 1.4 mH Frequencies are typically measured in Hertz (Hz), which is a unit of frequency equivalent to 1 cycle per second. To convert megahertz (MHz) to Hertz (Hz), we must multiply by 1,000,000

f = 1 / (2π√LC)

f = 1 / (2π√1.4 mH x 0.26 μF)

f = 1 / (2π√(1.4 × 10⁻³) H x (0.26 × 10⁻⁶) F)

f = 1 / (2π√(1.4 × 0.26) × (10⁻³ × 10⁻⁶))

f = 1 / (2π√(0.364 × 10⁻⁹))

f = 1 / (2π × 0.000000604)f = 262,817.8 Hz.

Therefore, the resonant frequency of the LC circuit is 262,817.8 Hz. To find the resonant frequency of an LC circuit consisting of a 0.26 μF capacitor and a 1.4 mH inductor, we can use the formula: f = 1/(2π√(LC)) where: f = resonant frequency L = inductance C = capacitance.

Substituting the given values, we get: f = 1/(2π√(1.4 mH × 0.26 μF))= 1/(2π√(1.4 × 10⁻³ H × 0.26 × 10⁻⁶ F))= 1/(2π√(3.64 × 10⁻¹⁰))≈ 1.46 MHz. Therefore, the resonant frequency of the given LC circuit is approximately 1.46 MHz.

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You are outside on a sunny afternoon and observe a thunderstorm far to the west. An hour later, the storm passes over you. Is it more likely to have been an air mass thunderstorm or some sort of mesoscale convective system?

Answers

It is more likely that the storm you observed, which passed over you after an hour, was a mesoscale convective system (MCS) rather than an air mass thunderstorm.

Air mass thunderstorms typically form and dissipate within the boundaries of a single air mass. They are generally short-lived and do not typically travel large distances. Therefore, it is less likely for an air mass thunderstorm to travel from a location far to the west to your current location within just an hour.

On the other hand, mesoscale convective systems are larger-scale weather systems that can cover hundreds of miles and persist for several hours or even longer. They often have organized structures, such as squall lines or clusters of thunderstorms, and can move over significant distances. It is more plausible for a mesoscale convective system to travel from a distant location to your area within the span of an hour.

Considering the time and distance covered, the fact that the storm passed over you after an hour suggests that it was likely a mesoscale convective system.

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What is one similarity between Platyhelminthes and Nematoda?

I give Brainliest!

Answers

Answer:

They are both unsegmented worms

Also:

They are both multicellular, invertebrates, heterotrophs, bilateral symmetry

Hope this Helps

The images below are models that represent the reactants and products of a chemical reaction.

Reactants Products



Based on the models, was mass conserved in this chemical reaction?
A.
No, because the purple atom formed two bonds in its reactant molecule and only one bond in its product molecule.
B.
No, because the reactants are made up of different types of molecules than the products.
C.
Yes, because the number of reactant molecules is the same as the number of product molecules.
D.
Yes, because the number of each type of atom is the same in the products as it is in the reactants.

Answers

Explanation:

In a chemical reaction, when mass is conserved , the number of atoms or moles of the reactants must be equal to the number of moles or atoms in the products side.

From the diagram, we should carefully look to see if the number of atoms that makes up the reactants are equal to those on the product side.

 For example:

      A + B → AB

Here, mass is conserved because, on the reactant side, we have 1 atom of A and on the product side we have 1 atom of A

For B, on the reactant side, we have 1 atom of B and on the product side, we have 1 atom of B.

Answer:

Yes, because the number of each type of atom is the same in the products as it is in the reactants.

Explanation:

ASAP it’s timed!!
An object has a mass of 5 kg. What force is needed to accelerate it at 6 m/s? (Formula: Fema)
0.89 N
1.2 N
11 N
30 N

Answers

Answer:

30N is the correct answer

30 N is the answer
Step by step: 30N

If a machine exerts 12,000 J of work with 800 N of force, what distance did it cover?
Show Work!!!

Answers

Hi! Let's see.

TOPIC: Mechanical Work.

Explanation:

Data:

Work(W) = 12000 JoulesForce(F) = 800 NewtonsDistance(d) = ?

==================================================================

We apply the distance formula:

\(\boxed{\boxed{\bold{d=\frac{W}{F}}}}\)

We replace by the data:

\(\boxed{d=\frac{12000J}{800N}}\)

It divides:

\(\boxed{\bold{d=15m}}}\)

Answer: The distance is 15 meters.

Cordially Alejanndraax. Greetings!

The distance covered by the machine is 15 m.

What is meant by work done ?

Work done on an object is defined as the dot product of the force applied on the object and the displacement of the object.

Here,

Amount of work done by the machine, W = 12000 J

Force exerted on the machine, F = 800 N

The equation for work done,

W = F.s

Therefore, displacement,

s = W/F

s = 12000/800

s = 15 m

Hence,

The distance covered by the machine is 15 m.

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he Big Bang Theory suggests....


a

The universe began in an instant.

b

The universe was born from clouds of dust and gas.

c

The single point containing the universe exploded and the universe stretched and expanded.

d

Gravity began to form stars and galaxies from clouds of dust and gas.

e

Both A and C.

f

Both B and C.

g

None of the above.

Answers

Answer:

C

Explanation:

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Answer:

i think a and c

Explanation:

Match each term to its definition.

Match each term to its definition.

Answers

Answer: first one is electrochemical
Second one is combustion
Third one is photosynthesis
Fourth one is respiration
Answers are in this order:
Electrochemical
Combustion
Photosynthesis
Respiration

Which statement is true about a falling object? (Assume no
air resistance)
1. The kinetic energy of the object is conserved.

2.The difference between the kinetic and potential energy of the
object remains the same.

3.The potential energy of the object is conserved.

4.The sum of the kinetic and potential energy of the object remains
the same.

Answers

I would say the answer is 3 because by falling technically the ball would be kind of moving in the air. Plus potential energy is when for example a soccer ball isnt moving

GIVING BRAINLIEST
In addition to having a blue color, what other characteristic do Neptune and Uranus share?

no rings
27 moons
no axis tilt
cold temperatures

Answers

Answer:

Cold temps. . .

Explanation:

Hope it helps!

The only force acting on a projectile after it is launched is...
electric force
launch force
applied force
gravity force

Answers

Explanation:

The only force acting on a projectile after it is launched is...

gravity force

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