find the work done by the engine of a car which moves at an acceleration of 3 m / s2 for 8s. the mass of the car is 1400 kg, while the coefficient of fecundation of its wheels with the road is 0.03.​

The net force in the tug of war which is shown in the picture provided will be 0N.

This is defined as the power exerted on a body and the unit of Force is referred to as Newton.

In the tug of war, the net force is gotten by summing up all the forces.

–190N + 10N –10N + 190N = 0N.

Therefore the net force is 0N.

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Answer:

B.   10 N

Explanation:

EGDE 2022

Answer:

Ionic Compound

Explanation:

We know that an ionic compound dissolves easily in water. Its melting point is very high, and it is a conductor.

The equation for Ionic Compound (IC) versus Electricity (EC) is

IC=1/2 divided by EC

EC is the base for the mathematics, so EC is a base warmth at 360.

360 divided by 1/2 is 180

That is the speed in which the current has.

Glad I could help!

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Answer:

yes/nope

Explanation:

............... :)

Answer:

I think the answer is gamma or x ray

Answer:

Water scarcity can mean scarcity in availability due to physical shortage, or scarcity in access due to the failure of institutions to ensure a regular supply or due to a lack of adequate infrastructure.

Explanation:

Answer:

F = -K x = 15 kN/m " .05 m = .75 kN = 750 N

W = 1/2 K X^2        original potential energy of block

W = 1/2 * 15 Kn/m * .0025 m^2 = 18.75 J

One cannot calculate speed of block without knowing mass of block.

Answer:

The answer is A because it is a resource that takes many many years to make more of and we cannot make it ourselves

Hacks in real life are tricks to help solve a problem with a simple solution.

Say for example, add a pinch of salt to whip egg white faster.

Answer:

you mean life hack ?...

Explanation:

well life hack is a strategy adopted in order to manage one's time and daily activities in a more efficient way.

life hacks are intended to improve your life e.g setting an alarm clock in order to wake up on time or putting a stoking over the end of your vacuum cleaner to help you find a tiny item etc.

Hope this helps

Answer:

 speed 9/speed 4   =   2sqrt3 / 3

Explanation:

KE = 1/2 m v^2

for 9 kg   = 3 * the 4 kg      1/2 (9)va^2   = 3* 1/2 (4) vb^2

va^2 / vb^2 = 3*  1/2 (4) / (1/2 *9)

                      6 / 4.5

va / vb = sqrt (6/4.5) =  2sqrt3 /3

ratio of the 9 speed  to the speed of the 4   is  2 sqrt 3 /3

Answer:

e

Explanation:

I think hope it's correct

Answer:

Sun is on the other side

Explanation:

Answer:

b) 2ft/s

Explanation:

A scalar has only magintude, not direction

6.2m, 3kg, and -100 o C are all scalars because they only have magnitude.

2ft/s is not a scalar because it has a direction.

Answer:

fringes move farther

Explanation:

The relation between the distance between the fringes is given by

y = Dλ/d

where, D is the distance between the plane of slit and the screen

d is the width of slit, λ is the wavelength of light used.

As the slit made narrower, that means d decreases, the value of y increases, that means the fringes move farther.

Answer:

the total population of the planet is 248

Answer:

On the side of the Earth opposite from the sun

Explanation:

As our Moon continues its orbit counterclockwise around Earth (viewed from above the north pole), more and more of the illuminated part of the Moon becomes visible to us, until it reaches the “full Moon” stage. A full Moon occurs when the Moon has moved in its orbit so that Earth is “between” the Moon and the Sun.

Answer: the sun:


Explanation:

the moon reflects the light coming from the sun. hope this helps. Can I pls have brainllyistbrainllyistbrainllyistbrainllyist

Answer:

Possible Answers:

How the points made can be more complicated or problematic:

The author seems to be focusing on pop culture or pastime activities.

The author isn’t taking into account economic differences between the average citizens of different nations.

All of these examples still follow the American idea of capitalism, not other economic systems.

Explanation:

pf

Judgement-acceptance is NOT one of the dialectical tensions that Baxter and Montgomery address in their theory of relational dialectics.

The Baxter and Montgomery theory is a model used in psychology to describe different parts of dialectics.

The Baxter and Montgomery theory put special emphasis on the existence of different layers (dimensions) in dialectics.

The Baxter and Montgomery theory is used to treat dialectical tensions by selecting autonomy over interdependence.

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The total metabolic energy used by each to complete the course is determined as 656.91 J.

The kinetic energy of Jessie and Jaime is calculated as follows;

K.E = ¹/₂mv²

where;

15 km/h = 4.17 m/s

5 km/h = 1.39 m/s

K.E = ¹/₂(68)(4.17)² + ¹/₂(68)(1.39)²

K.E = 656.91 J

Thus, the total metabolic energy used by each to complete the course is determined as 656.91 J.

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The energy released during the nuclear change is 2.853*10^(-12) J.

A nuclear change -- involves changes in nuclear structure, such as fission (splitting) of a nucleus or an atom, or fusion (combining) of neutrons and protons to form heavier atoms

Given that,

Total mass

[tex]m=2.3465\times 10^{-27}\ kg[/tex]

After change , the mass of resulting materials

[tex]m'=2.3148\times 10^{-27}\ kg[/tex]

Using the Einstein's mass energy equation

[tex]E=mc^2[/tex]

The energy released during the change is given by

[tex]\Delta E=mc^2[/tex]

Where,  [tex]\Delta m[/tex] is the change of mass in the process

c = speed of light

The change in mass

[tex]\Delta m=m-m'[/tex]

[tex]\Delta m=2.3465\times 10^{-27}-2.3148\times 10^{-27}[/tex]

[tex]\Delta m =0.0317\times 10^{-27}\ kg[/tex]

We substitute the value into the formula

[tex]\Delta E=0.0317\times 10^{-27}\times (3\times 10^8)^2[/tex]

[tex]\Delta E=2.853\ti,es 10^{-12}\ J[/tex]

Hence, The energy released during the change is 2.853*10^(-12) J.

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Answer:

A

Explanation:

Oops.

That's my bad then.

Answer:

Desiree,  did you really take a picture of your computer with your phone? :0  ,  print screen, (prt sc)   and open paint, or the clip tool to paste pic into where you choose.  no lines needed.  It's harder to read the pictures when you take a phone picture.  just screen capture,  it's clean, and neat.

Explanation:

conduction is how quickly the temp equalize.  A is the best conductor.

Alpha decay is the term that is used to describe a type of radioactive decay that involves the evolution of a helium nucleus.

The term alpha decay is the term that is used to describe a type of radioactive decay that involves the evolution of a helium nucleus. In this case the question is incomplete but I will try to paint a general picture of alpha decay.

The general equation for an alpha decay will produce a daughter nucleus that has an atomic mass less by four units and atomic number that is less by two units.

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Answer:

32.6 years

Explanation:

Answer:

a) Dalton

Explanation:

In Dalton's model atoms are imagined as tiny balls. This model was introduced in the year 1803 by John Dalton.

Answer:

384 joule

Explanation:

mass(m) = 1200 kg,velocity(v) = 0.800m/s, Kinetic Energy(KE) = ? We know that, KE = 1/2 m× v×v, = 1/2× 1200×0.800×0.800 = 600× 0.64 = 384 joule

The time required to move from the equilibrium position directly to a point a will be 0.879 sec.

The period is the amount of time it takes for a particle to perform one full oscillation. T is the symbol for it. Taking the reciprocal of the frequency yields the frequency of the oscillation.

The standard equation for the SHM is found as;

[tex]\rm x = asin \omega t \\\\ \rm 12.3 \times 10^{-2} = 18.0 \times 10^{-2}sin \omega t \\\\ 0.6833=sin \omega t \\\\ \omega t =sin^{-1}0.6833 \\\\ \omega t =0.7522 \\\\ t = \frac{0.7522}{0.855 } \\\\ t=0.879\ sec[/tex]

Hence the time required to move from the equilibrium position directly to a point a will be 0.879 sec.

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Each point along the track of one solar mass star represents the star's surface temperature and luminosity at one time.

A star having a mass equal to the mass of the Sun is called a one-solar mass star.

Its life track shows the luminous intensity as well as the surface temperature.

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Part 1- The work done by the gas during this process will be 5.65 ×10⁻³ kJ.

Part 2-The heat added to the gas during this process will be 5.65 ×10×10⁻³ kJ.

Work is the product of pressure p and volumes V during a volume change for such a gas. The work seems to be the area under the curve that indicates how the state changes.

The work done under the isothermal process is;

[tex]\rm W= P_1V_1 log_e(\frac{P_1}{P_2} )\\\\ W= 7 \times 1.71429 \times 10^{-3} log_e(\frac{7 }{2} )\\\\\ W= 0.0044 \ kJ[/tex]

For the isothermal process;

ΔU=0

[tex]\rm \triangle Q = \triangle E + \triangle W \\\\ Q = 0 + 5.65 \times 10^{-3}\\\\ Q = 5.65 \TIMES 10^{-3} \ kJ[/tex]

Hence, the work done, and the heat added by the gas during this process will be 5.65 ×10⁻³ kJ and 5.65 ×10×10⁻³ kJ respectively.

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Answer:

45 j

Explanation:

At the top, the KE will have been converted to PE

KE = 1/2 mv^2 =PEat-top = 1/2 10 *3^9 = 45 j

The composition of a star is determined from the red or blue shift of spectral lines in a spectrum, the width of the spectral lines in the spectrum.

The study of light and other radiation absorption and emission by matter is called spectroscopy. Electromagnetic radiation into its constituent wavelengths, in a spectrum, just like a prism splits light into a rainbow of colors.

The composition of a star is determined from the red or blue shift of spectral lines in a spectrum, the width of the spectral lines in the spectrum.

Hence, option D is correct.

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