As shown in the figure below, a pig runs rightward 20 m to eat a juicy apple, walks leftward 5 m to eat a nut,
and then another 25 m leftward for another nut. The total time was 300 s.
What is the pig's average velocity to reach the last nut?
m
S
What is the pig's average speed to reach the last nut?

We're missing one essential piece of information that we need in order to answer this question.  You have not specified what planet the object is falling on.  The answer depends on the gravitational acceleration on that planet, and they're all different.

Without that information, we'll just go ahead and assume that the object is falling to the surface of the Earth.  Wherever on Earth this tense drama is unfolding, the acceleration of gravity is going to be around 9.8 m/s² everywhere.

So THAT's the object's acceleration if there is no air resistance.  The object's MASS makes no difference.  It doesn't matter whether the object is a sparrow feather or a school bus. Heavier objects DO NOT fall faster than light objects.

If there is no air resistance, then ALL objects fall with the same acceleration.    It's called the "acceleration of gravity" on that planet or moon, and you can easily look it up.  It's 9.8 m/s² on Earth, 1.62 m/s² on the Moon, 3.71 m/s² on Mars, 8.87 m/s² on Venus, and 24.8 m/s² on Jupiter.

Answer:

it should not be dropping it goes up in the air then it goes down

Answer: Approximately 11.76 joules per second

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

Work Shown:

Mass = 40 kg

Force pulling down = (mass)*(gravity) = 40*9.8 = 392 newtons

Roughly 392 newtons of force are pulling down on her.  

To climb the steps, she must apply 392 newtons of force upward.  

---------------

Displacement = 20*(15 mm) = 300 mm = 0.3 m

Work = Force*Displacement

Work = 392*0.3

Work = 117.6 joules of energy

---------------

Power = (Work)/(Time)

Power = (117.6 joules)/(10 seconds)

Power = (117.6/10) joules per second

Power = 11.76 joules per second, which is approximate

Explanation:

then the

speed decreases

Answer:

It gets refracted,

Explanation:

Because i did a couple different searches.

Answer:

groups

Explanation:

I got a 100 on my quiz

Answer:

It's groups

Explanation:

2020 quiz

Answer:

The change in momentum of an object is equal to the impulse applied to it. Impulse is the product of force and time, or J = FΔt.

In this case, the force acting on the rocket is 500 N, and the time it is applied is 600 s, so the impulse is:

J = FΔt = (500 N) * (600 s) = 300000 Ns

The impulse applied to the rocket causes a change in momentum, which is given by the formula:

Δp = J

So the change in momentum of the rocket is 300000 Ns.

The two strings are taut. When the system is released from rest, it accelerates at 2 m/s2 then, Mass of A = 8m/5 kg.

Let the mass of the body A be ‘m’.

The two strings are taut so they exert a tension ‘T’ on body A.

Let ‘a’ be the acceleration produced in the system.

The free body diagram of body A is given below: mA + 2T = mA + ma = mA + m(2)mA + 10T = mA + ma = mA + m(2)

As the two strings are taut, we can say that tension in both strings is equal.

Therefore 2T = 10T or T = 5T As the body A is resting on a smooth horizontal table, there is no friction force acting on the body A.

The net force acting on body A is the force due to tension in the strings. ma = 2T – mg …(1)

As per the given problem, the system is released from rest.

Hence the initial velocity is zero.

Also, we are given that the system accelerates at 2 m/s2.

Therefore a = 2 m/s2 …(2)

From the equations (1) and (2), we get, m(2) = 2T – mg …(3)⇒ m(2) = 2×5m – mg⇒ 2m = 10m – g⇒ g = 8m/5

Thus, the mass of A is 8m/5 kg.

Answer: Mass of A = 8m/5 kg.

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Answer:

50.76°

Explanation:

To find the angle between the two polarizers, you take into account that each polarizing sheet reduces the intensity of the light. Then, you have:

After the unpolarized light crosses the first polarizer:

\(I_1=\frac{I_o}{2}\)

After light crosses the second polarizer:

\(I_2=I_1cos^2\theta=\frac{I_o}{2}cos^2\theta\)

θ: angle between the two polarizing sheets

When the light emerges from the second polarizer the intensity of the light is 0.2 times the initial intensity, then you have:

\(0.2(8000W/m^2)=(\frac{8000Wm/m^2}{2})cos^2(\theta)\\\\\theta=cos^{-1}(\sqrt{0.4})=50.76\°\)

hence, the angle between the polarizing sheets is 50.76°

Given:

• Distance between plates = 1.396 mm

• Diameter = 2 cm

• Electric field = 549,707.592 V/m

• Speed = 19,424,119.514 m/s

Let's find the electron's speed as it left the negative plate.

Apply the formula:

Where:

vf is the final speed = 19,424,119.514 m/s

q = 1.60 x 10⁻¹⁹

V = E x d = 549,707.592 V/m x 1.396 mm

m is the mass of electron = 9.11 x 10⁻³¹ kg

Thus, we have:

Solving further, we have:

Therefore, the speed as it left the negative plate is 10379815.66 m/s.

ANSWER:

10,379,815.66 m/s

Explanation:

hope this helps, cheers!

The values for the average speed and average velocity are;

(a) \(Average \ speed = 1.37\overline{142857} \ m/s\)

(b) \(The \ average \ velocity = 0.\overline{857142} \ m/s\)

The reason the above values are correct is given as follows;

The given parameters are;

Distance of the nearest grocery store to the house, d = 60 m

Direction of the grocery store = East from the house

Walking speed, s = 1.2 m/s

Time of walking before the rain started, t₁ = 15.0 s

Time it takes to go back to the house, t₂ = 5.0 s

Speed at which the start walking again, s = 1.2 m/s

(a) The formula for average speed, \(s_{avg}\), is given as follows;

\(s_{avg} = \dfrac{Total \ distance }{Sum \ of \ time \ taken}\)

The distance walked before the rain, d₁ = 1.2 m/s × 15.0 s = 18 meters

Distance covered on returning to the house = d₂ = d₁ = 18 meters

The total distance covered, ∑Distance = d₁ + d₂ + 60

∴ ∑Distance = 18 m + 18 m + 60 m = 96 m

The time, t₃, it takes to get to the grocery store on the second attempt after getting the umbrella is given as follows;

\(t_3 = \dfrac{d}{v}\)

\(t_3 = \dfrac{60 \ m}{1.2 \ m/s} = 50.0 \, s\)

The total time, ∑Time = t₁ + t₂ + t₃

∴ ∑Time = 15.0 s + 5.0 s + 50.0 s = 70.0 s

\(Average \ speed = \dfrac{\sum Distance}{\sum Time}\)

\(Average \ speed = \dfrac{96 \, m}{70 \, s} = \dfrac{48}{35} \ m/s= 1.37\overline{142857} \ m/s\)

\(Average \ speed = 1.37\overline{142857} \ m/s\)

(b) The average velocity, \(v_{avg}\), is given as follows;

\(v_{avg}= \dfrac{Total \ displacement}{Total \ time}\)

The total displacement = The total change in location = The change in location from the house to the grocery =  60 m

The total time is the same as for the average speed, ∑Time = 70 s

\(\therefore v_{avg}= \dfrac{60 \, m}{70 \, s} = \dfrac{6}{7} \ m/s = 0.\overline{857142} \ m/s\)

\(The \ average \ velocity = 0.\overline{857142} \ m/s\)

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Answer:

486,750 kg*m/s

Explanation:

Momentum is mass*velocity

M = m*v

M = 8850kg*55m/s

M = 486,750 kg*m/s

The momentum of an 8850 kg medium truck that is traveling with a velocity of 55 m/s west on the highway is 486750 kg m / s.

Momentum is the result of a particle's mass and velocity. Being a vector quantity, momentum possesses both magnitude and direction. According to Isaac Newton's second equation of motion, the force acting on the particle equals the time rate of change of momentum.

According to Newton's second law, if a particle is subjected to a constant force for a specific amount of time, the result of the force and time (referred to as the impulse) is equal to the change in momentum.

Given:

The mass of the truck is, m = 8850 kg,

The velocity of the truck is, v = 55 m/s,

Calculate the momentum of the truck as shown below,

Momentum = m × v

Momentum = 8850 × 55

Momentum = 486750 kg m / s

Thus, the Momentum of the truck is 486750 kg m / s.

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From 1998 to 2005, the percentage of mothers with infants in the workforce grew considerably. In 1998, 59.5% of mothers with infants were in the labor force and by 2005, that number grew to 68.8%, an increase of 9.3%, according to data from the Bureau of Labor Statistics.

The United States Department of Labor has a division called the Bureau of Labor Statistics (BLS). It functions as a key agency of the U.S. Federal Statistics System and is the primary fact-finding body for the federal government of the United States in the broad field of labour economics and statistics. The American public, the U.S. Congress, other Federal agencies, State and local governments, industry and labour representatives, and the general public are all served by the BLS's collection, processing, analysis, and dissemination of crucial statistical data. The BLS also conducts research on the income levels families require to sustain an acceptable standard of living and acts as a statistical resource for the US Department of Labor.

The largest overall increase was in mothers with infants aged 6 to 11 months. In 1998, 57.7% of this group was in the labor force, but by 2005, that increased to 68.3%.

There was also an increase among mothers with infants aged 0 to 5 months, though it was much smaller. In 1998, 55.4% worked, with that number increasing to 60.2% in 2005. Working mothers with infants aged 12 to 17 months experienced the smallest increase from 1998 to 2005, with the labor force participation rate reaching 71.7%, a 4.4 percentage point increase from 1998.

The fact that more and more mothers are opting to enter the workforce may indicate that the social expectation of mothers’ roles is slowly evolving. The increased availability of daycare, more flexible job positions, and changes in child-rearing practices may have contributed to the increase in mothers entering the workforce.

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Answer:

After several thousand more years, mesotrophic lakes gain nutrients from the fallen, decayed leaves from deciduous trees, decayed shoreline plants, decaying aquatic plants, and the remains of fish and other water creatures.

Explanation:

plz give me brainliest

Yes, it is possible that a bicycle can help you develop more power. Riding a bicycle involves using your muscles to pedal the bike, which can help to improve your muscle strength and endurance. As you ride the bike, your muscles will contract and relax repeatedly, which can help to build strength and power.

Additionally, biking can help to improve your cardiovascular fitness. As you ride, your heart will have to work harder to pump oxygen-rich blood to your muscles, which can help to improve the function of your heart and lungs. This can also help to increase your power and endurance, as your muscles will be able to work harder and for longer periods of time.

Overall, biking can be a great way to develop more power and improve your overall fitness. It can help to build strength and endurance in your muscles, and it can also improve the function of your heart and lungs.

Given data:

* The fundamental length of pipe is,

* The next resonant length of pipe is,

* The speed of the sound is v = 338 m/s.

Solution:

The fundamental length of the pipe in terms of the wavelength is,

The second resonant length of the pipe in terms of wavelength is,

Substracting both the values,

Substituting the known values,

Thus, the value of the wavelength of sound emitted by the tuning fork is 1 meter.

(b). The frequency of the sound is,

Thus, the frequency of sound is 338 Hz.

The spring can be stretched by 0.188 meters before the box attached to it will start to move.

1. Calculate the gravitational force acting on the box:

  Fg = m * g = 0.94 kg * 9.81 \(m/s^2\) = 9.2494 N

2. Determine the maximum force of static friction acting on the box:

  \(Fs_{max\) = u * \(F_{norm\) = u * m * g = 0.71 * 0.94 kg * 9.81 \(m/s^2\) = 6.7385 N

3. Calculate the force required to start moving the box:

  \(F_{start\) = \(Fs_{max\) = 6.7385 N

4. Use Hooke's law to find the amount of spring displacement needed to generate the force required to start moving the box:

  F_spring = k * x

  where k is the spring constant and x is the displacement

  Rearrange the formula to solve for x:

  x = \(F_{spring\) / k

5. Substitute the values for \(F_{spring\) and k:

  x = \(F_{start\) / k = 6.7385 N / 55 N/m = 0.1226 m

6. Convert the displacement to stretch length:

  The total stretch length is twice the displacement, as the spring is compressed and then stretched:

  stretch length = 2 * x = 2 * 0.1226 m = 0.2452 m

7. Round off the answer to the appropriate number of significant figures:

  stretch length ≈ 0.188 m

Therefore, the spring can be stretched by 0.188 meters before the box attached to it will start to move.

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Torque = 2.05 x 10²⁸ Nm

Energy = 3.54 x 10³³ J

Average power = 1.02 x 10²⁸ W

(a) Torque (τ) is the rotational effect of a given force.  

It is given by

τ = I x α          -------------(i)

Where;

I = rotational inertia of the object

α = angular acceleration of the object.

In this case, the object is the Earth. Therefore,

I = 9.71 x 10³⁷ kg m²

α = ω / t

Where;

ω = angular velocity of earth = 2π rad / day

Since

1 day = 24 hours and 1 hour = 3600seconds

1 day = 24 x 3600 seconds = 86400seconds

=> ω = 2π rad / 86400seconds

=> ω = 7.29 × 10⁻⁵ rad/s

t = 4 days = 4 x 24 x 3600 seconds = 345600 seconds

=> α = ω / t

=> α = 7.29 × 10⁻⁵ / 345600

=> α = (7.29 × 10⁻⁵) / (3.456 x 10⁵)

=> α = (7.29 × 10⁻⁵⁻⁵) / (3.456)

=> α = (7.29 × 10⁻¹⁰) / (3.456)

=> α = 2.11 × 10⁻¹⁰ rad/s²

Now substitute the values of I and α into equation (i)

τ = 9.71 x 10³⁷ x 2.11 × 10⁻¹⁰

τ = 9.71 x 10²⁷ x 2.11

τ = 20.5 x 10²⁷ Nm

τ = 2.05 x 10²⁸ Nm

(ii) The energy (rotational energy) E is given by;

E = \(\frac{1}{2}\) x I x ω

E = \(\frac{1}{2}\) x 9.71 x 10³⁷ x 7.29 × 10⁻⁵

E = 35.4 x 10³² J

E = 3.54 x 10³³ J

(iii) The average power P, is given by;

P = E / t

P = 3.54 x 10³³ / 345600

P = 1.02 x 10²⁸ W

Given what we know, we can confirm that the bands indicate that the canyon was carved due to erosion caused by moving water.

The bands are the result of sediments being deposited as the canyon was being formed. These sediments are deposited by the running water that carves the canyon. This results in horizontal bands that can tell us much about the history of the canyon as well as the river that formed it.

Therefore, we can confirm that the bands indicate that the canyon was carved due to erosion caused by moving water.

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Answer:

In a material, the magnetic behavior depends on the alignment of magnetic moments of the atoms. Magnetic moments are generated by the motion of the electrons in the atoms. When the magnetic moments of atoms in a material are aligned in a specific pattern, it creates a magnetic field which results in the material being magnetic.

In many materials, the magnetic behavior arises due to the alignment of magnetic domains, which are regions of atoms with magnetic moments aligned in the same direction. When many domains with aligned magnetic moments are present in a material, the material becomes magnetic.

The magnetic behavior of a material depends on the number of electrons and the arrangement of those electrons in the atoms. In particular, for an atom to have a magnetic moment, it must have unpaired electrons, meaning electrons that are not paired with another electron with the opposite spin. When these unpaired electrons in the atoms are aligned, they generate a magnetic moment. If all electrons are paired, there will not be a net magnetic moment, so the material will not be magnetic.

So, in summary, the magnetic behavior of a material is determined by the alignment of magnetic moments of atoms. When the magnetic moments of many atoms in a material align in the same direction, it creates a magnetic field, leading to a material being magnetic. This alignment is usually present in magnetic domains consisting of atoms with unpaired electrons.

Answer:

 ΔV = -2.1 L

Explanation:

To solve this exercise we can use the ideal gas equation for two points

         PV = nRT

          P₁V₁ = P₂ V₂

where point 1 is on the surface and point 2 is at the desired depth,

          V₂ = \(\frac{P_1}{P_2} \ V_1\)

let's calculate

           V₂ = ( \(\frac{1 atm}{2.5 atm}\) ) 3.5 L

            V₂ = 1.4 L

this is the new volume, the change in volume is

          ΔV = V₂ -V₁

          ΔV = 1.4-3.5

          ΔV = -2.1 L

Jacob's weight when sitting in a chair with a mass of 74.8 kg is 733.0 N

Weight can be defined as the gravitational pull of a body.

To calculate Jacob's weight, we use the formula below.

Formula:

Where:

From the question,

Given:

Substitute these values into equation 1

Hence, the weight of Jacob is 733.0 N.

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The  centripetal acceleration of the bucket at the bottom of the circular loop is 36 m/s².

The net force at the bottom of the circular loop is 68.7 N.

The given parameters:

The  centripetal acceleration of the bucket at the bottom of the circular loop is calculated as follows;

\(a_c = \frac{v^2}{r} \\\\a_c = \frac{6^2}{1} \\\\a_c = 36 \ m/s^2\)

The net force at the bottom of the circular loop is calculated as follows;

\(F_{net} = m(g + a_c)\\\\F_{net} = 1.5(9.8 + 36)\\\\F_{net} = 68.7 \ N\)

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Answer:it’s A. right for ape x

Explanation:

Based on data, digital waves are more reliable because they are less likely to change when copied (Option A).

A wave is a periodic distortion capable of traveling through a suitable media (either air or water).

In conclusion, based on data, digital waves are more reliable because they are less likely to change when copied (Option A).

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Answer:

\(\omega '=-13.5rad/s\)

Explanation:

From the question we are told that:

Time \(t=4sec\)

Angular displacement \(\theta= 161 rad\)

Final Angular velocity  \(\omega = 100 rad / s\)

Let

Angular acceleration \(\alpha\)  

Generally the equation for Initial Angular velocity  \(\omega '\) is mathematically given by

\(-\omega '^2=2 \alpha \theta -\omega^2\)

\(\omega '^2= \alpha 328 +11236\)

Also,Initial Angular velocity  \(\omega '\) is mathematically given by

\(\omega '=\omega - \alpha t\)

Therefore substitution

\(-\omega '^2=2 \alpha \theta -\omega^2\)

\(\omega '=\omega - \alpha t\)

\((\omega - \alpha t)^2=2 \alpha \theta -\omega\)

\(-16\alpha^2+848\alpha+11236= \alpha 328 -11236\)

\(16\alpha^2-520\alpha=0\)

\(\alpha=29.875rads/s^2\)

Substitution in the 2nd equation for Initial Angular velocity  \(\omega '\)

\(\omega '=106-(29.875rads/s^2*4)\)

\(\omega '=-13.5rad/s\)

The momentum of the person is 100 Kgm/s.

Given the following data;

To find the momentum of the person;

Momentum can be defined as the multiplication of the mass possessed by an individual or object and its velocity.

Mathematically, momentum is giving by the formula;

\(Momentum = Mass\) × \(velocity\)

Substituting into the formula, we have;

\(Momentum = 50\) × \(2\)

Momentum = 100 Kgm/s

Therefore, the momentum of the person is 100 Kgm/s.

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