(10 points)
a. Ball 3 has the lowest speed.

b. Ball 1 has the lowest speed.

c. All three balls have the same speed.

D. The speed of the balls depends on their mass.

By Hooke's law, the spring exerts a restoring force with magnitude F when compressed by a distance x according to

F = kx

where k is the spring constant. Solve for k :

k = F / x = (108.0 N) / (0.0191 m) = 5654.45 N/m

Now solve for F when x = 0.0440 m :

F = (5654.45 N/m) (0.0440 m) = 248.796 N ≈ 249 N

Answer:

32.6 years

Explanation:

Answer:

The dynamo has a wheel that touches the back tyre. As the bicycle moves, the wheel turns a magnet inside a coil. This induces enough electricity to run the bicycle's lights. The faster the bicycle moves, the greater the induced voltage - and the brighter the lights.

Because of the bicycle's actions, the wheel turns a magnet internal a coil. This induces enough strength to run the bicycle's lighting fixtures. The faster the bicycle movements, the greater the caused voltage - and the brighter the lights.

A trendy dynamo creates an instantaneous modern-day (DC) – a one-directional waft of electrical rate. A bicycle dynamo creates an alternating current (AC), which reverses course from time to time.

A dynamo is a tool normally positioned inside the hub of a motorcycle's wheel that converts the energy generated by means of the wheel spinning to electric power. That energy is then used to run front and rear dynamo lights at the bike, offering constantly-on illumination without the want to change the lighting.

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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:

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:

the total population of the planet is 248

Answer:

I think the answer is gamma or x ray

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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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:

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:

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

Oops.

That's my bad then.

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

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.

Answer:

The three best answers are:

Electric fields can be positive or negative  (depending on source)

Electric fields can attrace or repel objets         (assuming the object is charged)

Electric forces are strongest near the charged object       E ∝ 1 / R^2

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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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!

Call me if ya need anything!

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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:

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

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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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:

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:

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

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

Answer:

Sun is on the other side

Explanation:

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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Answer:

yes/nope

Explanation:

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

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

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:

e

Explanation:

I think hope it's correct