Can anyone explain and get the answer pls?

Can Anyone Explain And Get The Answer Pls?

Answers

Answer 1

FL₁ =Fl₂

80.x₁ = 30.7

x₁=2.625 m


Related Questions

what is instantaneous motion?​

Answers

The motion of an object at the same and specific point in time.

How does food affects carbon footprint?

Answers

Answer:

Food accounts for 10-30% of a household's carbon footprint, typically a higher portion in lower-income households. Production accounts for 68% of food emissions, while transportation accounts for 5%.

Explanation:

Answer: Food accounts for 10-30% of a household's carbon footprint, typically a higher portion in lower-income households.

Explanation:

A curling stone has a mass of 19.1 kg and a velocity of 3.0 m/s. What is the momentum of the curling stone?

Answers

Considering the definition of momentum, the momentum of the curling stone is 57.3 [tex]\frac{kgxm}{s}[/tex].

Definition of linear momentum

The linear momentum or quantity of movement is the magnitude that allows us to measure the capacity of a body in motion to exert a force on another that is in its path.

The linear momentum of a particle of mass m or body m moving with a speed v is defined as the product of the mass times the speed:

P = m×v

Where, as previously stated:

P is the moment.m is the mass of the body.v is the speed.

The standard units for moment are [tex]\frac{kgxm}{s}[/tex], and moment is always a vector quantity. Its direction and direction coincide with those of the velocity vector.

Momentum of the curling stone

In this case, you know:

P= ?m= 19.1 kgv= 3 [tex]\frac{m}{s}[/tex]

Replacing in the definition of momentum:

P = 19.1 kg ×3 [tex]\frac{m}{s}[/tex]

Solving:

P=57.3 [tex]\frac{kgxm}{s}[/tex]

Finally, the momentum of the curling stone is 57.3 [tex]\frac{kgxm}{s}[/tex].

Learn more about momentum:

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A 71 kg hiker climbs to the top of a 4300 m -high mountain. The climb is made in 5. 5 h starting at an elevation of 2800 m. Calculate the work done by the hiker against gravity. Calculate the average power output in watts. Calculate the average power output in horsepower. Calculate assuming the body is 16% efficient, what rate of energy input was required

Answers

Answer:

A. 1.0x10^6 J

B. 53 W

C. 7.1x10^-2

D. 330 W

Explanation:

A) work done = mgh

so 71*9.8*1500=1.0x10^6 J

B) power = Work done/time

So P=1.0x10^6/19800 sec

P= 53 W

C) 1 HP =735 W

503 W= 7.1x10^-2 HP

D) efficiency =(output/ input) *100

so 16= (53/input) *100

input= 7.1x10^-2

A railway wagon of mass 100 kg is pulled with a force of 1000 N. what is its Acceleration ?​

Answers

Solution,

Mass(m)= 100kgForce(F)= 1000NAcceleration (a)=?

We know that,

[tex]f = ma \\ \frac{f}{m} = a \\ \frac{1000}{100} = a \\ 10 = a[/tex]

Therefore,

Acceleration produced will be 10m/.

Two objects are being lifted by a machine. One object has a mass of 4 kg, and is lifted at a speed of 5 m/s. The other has a mass of 8 kg and is lifted at a rate of 7 m/s. Which object had more potential energy when it was lifted a distance of 10 m? What does this tell you about the variable(s) that impact gravitational potential energy?

Answers

Answer:

The object that weighs 8kg.

(sorry if it's wrong)

Explanation:

The heavier an object is the more potential energy it has.

For resistors in series, the _____ is the same for each resistor.

Answers

Answer:

answer is equivalent resistance

∘₊✧──────✧₊∘

Answer:

the answer is electric current

Explanation:

when resistors are connected in series current is same .

but the voltage is divided between resistors.

Which of the following regions have extreme scarcity of water chose all that apply. 1. Australia 2. Southwest of the United States 3. Russia 4. East coast of the United States

Answers

Answer:

I would say 1 and 2. I am not sure so Im going with my gut and so should you:) lol

Explanation:

When a light wave enters a medium of greater optical density, select two of the characteristics that will decrease in the wave,
A speed
B
frequency
С
wavelength
D
period
E
amplitude
F
height

Answers

Answer:

The speed (A) will decrease

V = F λ  (the frequency F remains the same to maintain continuity across the interface)

Therefore (C) the wavelength must decrease      

Note: n = speed of light in air / speed of light in medium

When a light wave enters a medium of greater optical density the two characteristics that are: (A) Speed, and (C) Wavelength will decrease in the wave.

It is given that a light wave enters a medium of greater optical density.

It is required to find the characteristics that will decrease.

What is light?

It is defined as the type of waves such as sound waves or ocean waves but waves carry energy. Light does not need any medium to travel.

We know that:

[tex]\lambda =\frac{v}{f}[/tex]

Where Lamda (λ) = Wavelength

                        ([tex]v[/tex]) = Speed of wave

                        [tex](f)[/tex] = Frequency of the wave.

The frequency remains the same to maintain continuity across the interface.

thus Speed of wave and Wavelength will decrease.

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The simplest way to estimate the age of the universe is from.

Answers

Answer: There really aren't many ways to estimate how old the universe is but, astronomers start by looking at the oldest stars in the universe.

Explanation:

Answer:

The big bang 13.7 billion years ago

Explanation:

Everything started 13.7 billion years ago that is when the big bang started.

An ocean wave has a speed of 36 m/s and a frequency of 3 Hz.
What is its wavelength?

Answers

Answer:

f=4Hz

Explanation:

frequency of a wave if it has a wavelength of 3.0 m and a wave speed of 12m/s

v=fλ → f=v/λ

f=12/3

f=4Hz

good morning to you all! can someone please answer this, ill give you brainliest and your earning 50 points.

Answers

Despite the risks, Human populations can be found near volcanoes. This can be associated with the availability of which natural resource?

Geothermal energy

Geothermal energy is the form of energy obtained from the heat of the earth. Near volcanoes the land is more hot compared to the normal areas. So, the heat of the lava will help in producing Geothermal energy...~

Answer:

Geothermal energy

Explanation:

The volcanoes erupt the hot magma or lava This is the main source of geothermal energy.As energy is most important thing for survival so many humans establish community near volcanoes

pls help me to answer this​

Answers

Answers:

Geography (geo-gra-phy)Location (lo-ca-tion)Coordinates (co-or-di-nates)Landmass (land-mass)Absolute (ab-so-lute)Vicinal (vi-ci-nal)Insular (in-su-lar)Relative (re-la-tive)

Note: It's very likely the tile labeled "MAL" should be "NAL", and that "MATES" should be "NATES".

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

Explanations:

Geography deals with not only places, but also the people and cultures in those places. That's more of a social or human geography course. Natural geography talks about land formations, volcanos, rivers, etc.I'm not sure there's much to say about this term. It's simply a position in 2D or 3D space depending on context.Coordinates are things like longitude and latitude. Think of the (x,y) points on a grid. Side note: The tile "mates" should be labeled as "nates". Your teacher made a typo. In some dialects, the "co" and "or" are pronounced together; almost sounding like "core". The term "landmass" is exactly what you'd expect it should be: a big chunk of land. When you mention if a person has absolute freedom, then we consider that person having no restrictions of movement/choice/etc. It also refers to something like a local coordinate space talks about the surrounding area, whereas an absolute coordinate space doesn't have to worry about such issues. Eg: a local coordinate could be "go 5 blocks from the store" and an absolute coordinate would be to provide a GPS location. As you can see, the local coordinate space needs the store as an anchor or else it wouldn't make much sense.To be quite honest, I had a bit of a long time to find this answer. I suppose if you are good with words then it shouldn't be too much of a struggle. But I did a reverse dictionary lookup and only focused on three syllable words until I arrived at "vicinal" which is related to "vicinity". Eg: The person was just in the vicinity. Anyways, I haven't really seen this word used too much in everyday language, so that's probably why it took a while for me. I have a feeling your teacher meant to write "NAL" instead of "MAL" as one of the tiles. This appears to be the second time s/he mixed up M's with N's (the first time being "MATES" mixed up with "NATES"; see problem 3). Insular is an adjective referring to a person or group of people cut off from the larger world. Think of a small town where it's hard to reach. Islands are of course like this, but we could have an "island" rural small town or some culture in a remote location that is on a continent somewhere. It doesn't necessarily have to be a literal island surrounded by water. Think of the word "insulate" to help remember "insular". Also, the term "insular" could refer to the deliberate attempt to keep oneself (or one group) closed off from the rest of the world. An example of this is the Amish culture being insular to the American culture surrounding them. If object A is larger than object B, then we say A is relatively large  compared to B. This is one example usage of the word "relative".


light reflects from two plane mirrors that meet each other at a right angle.if the incoming ray makes an angle of 20 degrees with the first mirror what is the angle of reflection at the second mirror

Answers

Answer:

angle of reflection is 20

Explanation:

because angle of incidence is equal to angle of reflection



can you explain why when the capacitor is

put into the circuit the ammeter shows 0

Amps

Answers

Maybe the ameter is connected in parallel to short-circuit.
It is not connected at all ( one or both probes would be open).
Or, the circuit is not powered.
The ameter is broken.
You didn’t connect the probes to the current input of the ameter. You should notice that in case of using multi-meter the ameter-function is working with different input-port than the voltmeter-function.
The ameter is set to measure DC current while the current in the circuit is AC.
You set the ameter to measure high current while measuring low current. Change the scope of the ameter step-by-step from higher set to lower.
Or simply, the current is zero.

A plane mirror forms a virtual image. give reasons

Answers

Explanation:

So ,plane mirror forms a virtual image.

With a damaged liver, which of the following is MOST likely?
e: carbon dioxide build up in the body
O toxin build up in the body
less oxygen in the body
fewer nutrients in the body

Answers

I think the correct answer is B

Good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.

Answers

temperature and energy ↔  surface temperature and ocean temperature

atmospheric composition ↔  carbon dioxide and other greenhouse gases

ocean and water ↔ ocean acidification and sea level

cryosphere ↔  sea ice and glaciers

Answer:

Explanation:

temperature and energy: the only answer that mentions temperature is -

surface temperature and ocean temperature

atmospheric composition: the only answer that mentions air gases is -

carbon dioxide and other greenhouse gases

ocean and water: the only answers that mentions ocean is -

ocean acidification and sea level

cryosphere: cryo means cold and the only answers that mentions anything cold is -

sea ice and glaciers

HELP PLS-how do tadpoles differ from an adult frog?​

Answers

Answer:

tadpoles do not have limbs and possess long tails, adult frogs on the other hand have two hind limbs and two fore limbs...

Explanation:

Hope it helps!!!

For how long must an object travel at 29.8 km/s to cover 940 Gm?

Answers

Answer:

For how long must an object travel at 29.8km/s to cover 940Gm? t = 940 Gm 29.8 km/s = 940 ⋅ 1 0 9 m 29.8 ⋅ 1 0 3 m s = 9.4 ⋅ 1 0 11 m 2.98 ⋅ 1 0 4 m s ≈ 3.154 ⋅ 1 0 7 s .

Explanation:

It will take 3,15,43,674 sec to cover a distance of 940 Gm with a speed of 29.8 km/s.

How are speed, distance and time interrelated?

Speed [s], distance [d] and time [t] are related to each other by the following relation -

s = d/t

Given is an object travelling at 29.8 km/s in order to cover 940 Gm.

In 1 Gm(Gigameter) there are 1000000000 m or 10⁹ m

Speed of object [s] = 29.8 km/s = 29800 m/s.

Distance to be covered [d] = 940 x 10⁹ m

Time taken to cover the distance of 1 Gm will be -

t = 1 Gm / 29800

t = (10⁷ x 100) / 29800

t = 10⁷/ 298

t = 33557.1 seconds

Therefore, in order to travel 940 Gm, it will take -

940 x 33557.1 = 3,15,43,674 sec

Therefore, it will take 3,15,43,674 sec to cover a distance of 940 Gm with a speed of 29.8 km/s.

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what makes urban heat island worse and what effects it and how can it be reduced?

Answers

Answer:

Extreme heat events often affect our most vulnerable populations first. Trees, green roofs, and vegetation can help reduce urban heat island effects by shading building surfaces, deflecting radiation from the sun, and releasing moisture into the atmosphere.


A block of mass 5kg is moved from position A to B as shown above The speed of the block is 12 m/s at A and 5 m/s at B. What is the work done by friction on the block as it moves from A to B.

Answers

Answer:

-220 j

Explanation:

Please help me it is the number 19​

Answers

Answer:

R = U^2 sin 2 θ / g

θ represents the degrees above the horizontal that the particle was fired

sin 2 θ is a maximum for θ = 45 deg

Then sin 2 θ = sin 90 = 1     the max value of R

A meteoroid changed velocity from 1. 0 km/s to 1. 8 km/s in 0. 03 seconds. What is the acceleration of the meteoroid?.

Answers

Initial velocity=1km/s=uFinal velocity=1.8km/s=vTime=t=0.03s

Acceleration be a

[tex]\\ \rm\Rrightarrow a=\dfrac{v-u}{t}[/tex]

[tex]\\ \rm\Rrightarrow a=\dfrac{1.8-1}{0.03}[/tex]

[tex]\\ \rm\Rrightarrow a=0.8/0.03[/tex]

[tex]\\ \rm\Rrightarrow a=26.67km/s^2[/tex]

Question :-

A Meteoroid changed Velocity from 1.0 km/s to 1.8 km/s in 0.03 sec . What is the Acceleration of the Meteoroid ?

Answer :-

Acceleration of the Meteoroid is 26.72 km/s² .

[tex] \rule {180pt} {2pt} [/tex]

Given :-

Initial Velocity = 1 km/sFinal Velocity = 1.8 km/sTime = 0.03 seconds

To Find :-

Acceleration = ?

Solution :-

As per the provided information in the given question, we have been given that the Initial Velocity of the Meteoroid is 1 km/s . Its Final Velocity is given 1.8 km/s . Time is given as 0.03 seconds . And, we have been asked to calculate the Acceleration of the Meteoroid .

For calculating the Acceleration , we will use the Formula :-

[tex] \bigstar \: \: \boxed{ \: \sf {Acceleration \: = \: \dfrac{ \: v - ᴜ \: }{ᴛ} \: }} \\ [/tex]

Where ,

v denotes to the Final Velocityᴜ denotes to the Initial Velocityᴛ denotes to the Time

Therefore , by Substituting the given values in the above Formula :-

[tex] \longmapsto \: \: \sf{Acceleration \: = \: \dfrac{ \: 1.8 \: - \: 1 \: }{0.03} } [/tex]

[tex] \longmapsto \: \: \sf{Acceleration \: = \: \dfrac { \: \: 0.8 \: \: }{ \: \: 0.03 \: \: } } \\ [/tex]

[tex] \longmapsto \: \: \sf{Acceleration \: = \: 26.72} \\ [/tex]

Hence :-

Acceleration = 26.72 km/s² .

[tex] \underline {\rule {180pt} {4pt}} [/tex]

good morning! Can someone please answer this, ill give you brainliest and you will earn 50 points.

Answers

Correct ones are

Technical improvements that have made alternative energy sources more practical to useIncrease in concern for environment.

why?

Fossil fuels are hydrocarbons

Hydrocarbons on burning with oxygen releases harmful carbon dioxide .

What factors do you think contribute to the increased use of alternative energy sources during the last 40 years? CLICK ALL THAT APPLY

Technological improvements that have made alternative energy sources more practical to use ✓

⇢ Technology has played a vital role in bringing out the best of alternative energy sources which helped in making a lot of things possible.

Increasing demand for fossil fuel use and demand for cars with low gas milage ✓

⇢Due to the high number of population with vehicles , the demand for fossil fuel is unattainable and during the time and to save fossil fuels for the next generation, alternative energy sources are eureka moment

Increase concern for the environment ✓

⇢ Alternative energy sources are a little step to save our environment which has been polluted by many toxic gases & particles.

Increase in impacts of climate change

What has more KE a 2 kg mass at 10 m/s or a 20 kg mass at 3 m/s?

Answers

KE = 1/2mv^2
for 2 kg mass:
KE = 1/2*2*10^2
= 100 J
for 3kg mass:
KE = 1/2*3*20^2
= 600 J
3kg object has more KE

Keesha conducts an experiment by pouring equal amounts of boiling water into four containers. The containers are the same size and shape, but they are made of different materials. The chart lists the containers according to their materials. A 2-column table with 4 rows. The first column labeled Container has entries W, X, Y, Z. The second column labeled Material has entries foam, glass, plastic, stainless steel. Using protective gloves, Keesha carefully touches each container immediately after pouring the water. Which container was likely the hottest? W X Y Z.

Answers

Option Z is correct. The stainless steel container was likely the hottest. Stainless steel is an excellent heat conductor because it quickly warms the substance.

What are the qualities of stainless steel?

Stainless steel is an excellent heat conductor because it quickly warms the substance or allows heat to travel through it. Stainless steel is also corrosion-resistant.

Foam, glass, and plastic, on the other hand, are all poor heat and electrical conductors. As a result, they do not allow heat to travel through.

As a result, we may deduce that, among the available possibilities, the stainless steel container was most likely the hottest.

Hence Option Z is correct. The stainless steel container was likely the hottest.

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Atoms of which pair of elements will form metallic bonds in a compound?
A. I and F
B. Be and Cl
C. Ag and Ca
D. Na and Br

Answers

that is a silly question: C

Metals¡¡¡¡¡¡¡¡¡¡¡¡¡¡

Atoms of which Ag and Ca will form metallic bonds in a compound. So, the correct option is C.

What is meant by metallic bond ?

Metallic bond is defined as the type of chemical bonds, through which the atoms in metals are held together.

Here,

The metallic bond arises between two atoms, due to the electrostatic force of attraction between the conducting electrons and the metal ions.

The silver metal atoms, Ag are held together in their crystal by means of metallic bond.

The atoms of silver(Ag) and calcium(Ca) will form intermetallic bonds between them, when they are in a compound.

Compounds like Ca₅Ag₃ and Ca₃Ag, etc. can be formed through the intermetallic bonds.

Hence,

Atoms of which Ag and Ca will form metallic bonds in a compound.

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Explain how radiation takes place

Answers

Answer:

Heat transfer through radiation takes place in the form of electromagnetic waves, mainly in the infrared region. The radiation is emitted by some body as a consequence of the thermal agitation of its composing molecules.

Explanation:

The transfer of heat by radiation involves the carrying of energy from an origin to the space surrounding it. The energy is carried by electromagnetic waves and does not involve the movement or the interaction of matter.

Answer:

depressions of ozyan leyar

What happens when light waves strike a mirror?

Most of the light waves are refracted.
Most of the light waves are absorbed.
Most of the light waves are scattered.
Most of the light waves are reflected.

Answers

Answer:

most light waves are scattered or are either reflected

Explanation:

the light waves bounce after hitting the mirror.

Answer:

most light waves are reflected

explanation:

when light hits a mirror it bounces back at the same angle it hit this is called reflection refraction on the other hand Refraction is the bending of light

Image result for what is refraction of light

Refraction is the bending of light

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