Which planet in the table has an average surface temperature closest to that of earth?.

Answer:

For temperatures between the freezing and boiling point of water, the heating curve is linear. Thus, we can use:

((200 * 90) + (100* 30))/300

Or: ((200 * 90)(temperature of first sample weighted by mass) + (100 * 30)(temperature of second sample weighted by mass) / (300)(total mass)

to find the final temperature.

100 can be factored out to get (2 * 90) + (1 * 30)) / 3

3 can be factored out every term: (2 * 30) + (1 * 10)

(The factoring out just makes mental math easier; if a calculator is available doing so is unnecessary.)

And then just work through the order of operations.

60 + 10

=70.

So in mathematics, which assumes a perfect world, you get 70.

You double your distance from a sound source that is radiating equally in all directions. The intensity of the sound reduces to one-sixteenth its original value.

The pace at which light disperses over a surface of a specific region some distance from a source is referred to as intensity. The intensity changes depending on the source's power and distance from it.

The degree, volume, or magnitude of something is its intensity. Examples include fire, emotion, weather, work, or passion. The word "intensity" is occasionally linked to fervour, fire, and violence. It is employed when describing the intensity of something like a flame or possibly a love affair.

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NOTE: The given question is incomplete on the portal. Here is the complete question

QUESTION: You double your distance from a sound source that is radiating equally in all directions. What happens to the intensity of the sound? It reduces to

(A) one-fourth its original value.

(B) one-eighth its original value.

(C) one-sixteenth its original value.

(D) none of the above

Answer:

10m/s

Explanation:

v = u + at

u = 50 m/s , t = 4 s, a = -10m/s

v = 50 + (-10×4)

v = 50 - 40

v = 10 m /s

another answer for acellus is 143 m/s it worked for me

The speed of the charge is approximately 2.857 m/s.

To find the speed of the charge, we can use the formula for the magnetic force on a charged particle moving through a magnetic field:

Force (F) = q * v * B * sin(θ)

Where:

F is the force on the charge (given as 2.14 x \(10^-8\)  N),

q is the charge of the particle (given as 2.99  x \(10^-6\)C),

v is the speed of the charge (what we want to find),

B is the magnitude of the magnetic field (given as 5.00 x \(10^-5\) T),

θ is the angle between the direction of motion and the magnetic field (given as 10.0°).

First, we need to convert the angle from degrees to radians:

θ (in radians) = 10.0° * (π / 180°) ≈ 0.174532925 radians

Now, we can rearrange the formula to solve for the speed (v):

v = F / (q * B * sin(θ))

Substitute the given values into the equation:

v = 2.14 x \(10^-8\) N / (2.99 x \(10^-6\) C * 5.00  x \(10^-5\)  T * sin(0.174532925))

v ≈ 2.857143 m/s

Therefore, the speed of the charge is approximately 2.857 m/s.

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It takes 11200 J of work to lift a 550 kg object. The object was lifted a distance of 20.36 meters.

The work done in lifting an object is given by the formula:

\(Work = Force * Distance\)

In this case, the force required to lift the object is equal to its weight, which is calculated as the mass of the object multiplied by the acceleration due to gravity (9.8 m/s²). So we have:

\(Work = Force * Distance\) = (mass * acceleration due to gravity) * distance

Given that the work done is 11200 J and the mass of the object is 550 kg, we can rearrange the equation to solve for the distance:

Distance = Work / (mass * acceleration due to gravity)

Plugging in the values, we have:

Distance = 11200 J / (550 kg * 9.8 m/s²) ≈ 20.36 m

Therefore, the object was lifted a distance internal energy of approximately 20.36 meters. The correct answer is option b) 20.36 m.

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A prefix is a word part added to the beginning of a word or base word (for example, un-). If the prefix un- is added to helpful, the word is unhelpful.

A suffix is a word part added to the end of a word. For example -  again in the word unhelpful, "un" if the prefix and the suffix would be "ful".

Answer:

100 N/ 400 N= .25

Explanation:

Answer:

E = V / d       125 V / .018 m = 6940 V/m     electric field

F = E Q       force on Q due to E

F = E n e     where n is the number of electrons in Q

m g = E n e

n = m g / E e     where n is the number of electrons e needed to support drop

n = 1.6 * 10E-16 * 9.8 / (6940 * 1.6 * 10E-19)

n = 1.41

Since n needs to be an integral number of charges, the drop would

not be suspended (motionless under these conditions).

The magnetic field around a current-carrying wire is directly proportional to the current and inversely proportional to the distance from the wire.

The magnetic field strength generated by a current-carrying wire follows the right-hand rule. As the current increases, the magnetic field strength also increases. This relationship is described by Ampere's law.

Additionally, the magnetic field strength decreases as the distance from the wire increases, following an inverse square law. This means that doubling the current will double the magnetic field strength, while doubling the distance from the wire will reduce the field strength to one-fourth of its original value. Therefore, the magnetic field around a current-carrying wire is directly proportional to the current and inversely proportional to the distance from the wire.

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When borosilicate glass is undergoing change in temperature, heat is transferred.  The specific heat of borosilicate glass is 837.4 J/kg. °C

The specific heat is the amount of heat stored per kilogram of substance by 1 degree rise in temperature.

Given is the mass of borosilicate glass m =100 g =0.1 kg, heat transferred Q = 309J, temperature change ΔT = 3.69°C

Q = m x Cp x  ΔT

309 = 0.1 x Cp x 3.69

Cp = 837.4 J/kg. °C

Thus, the specific heat of borosilicate glass is 837.4 J/kg. °C

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Answer:

72 meters

Explanation:

Breaking distance is directly proportional to the speed squared.

d = k v²

When v = 12 m/s, d = 32 m.

32 = k (12)²

k = 2/9

d = 2/9 v²

When v = 18 m/s:

d = 2/9 (18)²

d = 72

If the truck is moving with the same velocity, if the mass is cut in half then the momentum of the truck will also reduce to half.

The momentum of a body can be described as the function of the object's mass and velocity. Momentum (p) can be determined as kinetic energy and is the product of velocity (v) and mass (m).

The momentum of an object can be determined from the mathematical formula:

p = m×v

The momentum of an object is conserved and can be equal to zero if the object is stationary and its velocity of an object is zero.

Given, the truck has a momentum, p = 5000 units

Given that the mass of the truck is reduced to half. Then the new mass of the truck is equal m/2.  If the truck is still moving with the same velocity then the momentum is equal to:

p' = m' ×v

p' = (m/2) ×v

p' = mv/2

p' = p/2

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The various process used by farmers from sowing of seeds to the market-ready products are:

Here are the various processes used by farmers from sowing of seeds to the market-ready products:

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The calculated mathematical expressions are projectile range is gu and height is 7.8 m.

Maximum height velocity equals half of initial height velocity.

Maximum height velocity equals the horizontal component.

V x=2u y=u 2 4u 2 = 23 u.i.e. tan 3 = 60

Projectile range = gu Gu 2sin120 = 3u2/3g= 2 sin2 = gu

The projectile's horizontal displacement determines its range. Since gravity only works vertically, there is no acceleration in this direction. demonstrates the range line. The projectile's range is a function of beginning speed, just like time of flight and maximum height.

We are aware that s=ut+0.5 at 2.

⟹5=25sinθ×2−0.5×g×4

∴sinθ= 2 1

⟹θ=30

o and H=2025si230

=7.8m

After three seconds, a stone that was thrown at an angle of ′′ with the horizontal from a tall building's roof hits the ground. It was back at the projection level two seconds after the projection. Consequently, the building's height is (g=10m/s2)

The projectile can travel as high as h, which is equal to half of this triangle's altitude. = H - 12H, resulting in the desired outcome of h = H/2.

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​

The boat had sailed 1130km.

Initial Boat travel time = 7 hours.

The boat's initial speed is 80 km/h

The boat's current speed is 95 km/h.

Boat travel time at present = 6 hours.

Total nautical miles traveled =?

Solution:

Speed = distance / time.

The distance = Speed * Time

1. Distance = 80 km/h x 7 hours

  Distance = 560 km

2. Distance = 95km/h x 6hours

   Distance = 570 km

Hence, total distance = 560km + 570km

                                    = 1130km

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Answer: The law of conservation of linear momentum helps to understand the behavior of a Newton's cradle In a closed system. This law is nothing more than action and reaction.it can be used to predict the resulting direction and speed of motion of objects after they collide.

Explanation: Just as an example, when you play pool/8ball, the white play exerts force on the other balls causing them to break away.

hope this helps.

We have that for the Question "Light travels in a transparent material at 2.5 x 10 m/s. Find the index of refraction of the material." it can be said that

From the question we are told

Light travels in a transparent material at 2.5 x 10 m/s. Find the index of refraction of the  material.

Generally the equation for the  index of refraction  is mathematically given as

\(n=\frac{C}{v}\\\\Therefore\\\\n=\frac{3*10^8}{2.5 * 10 }\\\\n=12000000\\\\\)

Therefore

The  index of refraction  of the material is

n=12000000

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Answer:

speed of rocket=615.38m/s

Explanation:

Answer:

Only one parent is needed, and it is faster than sexual reproduction.

Explanation:

Sorry I'm not the best at explaining it but that's the answer.

asexual reproduction provides an advantage to the organisms that live on a rotting log by generating huge number of creatures in a very short amount of time

Asexual reproduction refers to a type of reproduction where a child is born to a single parent. The newly created people are clones of their parents since they have the same genetic makeup and physical characteristics.

Both multicellular and unicellular species can reproduce asexually. There will be no gamete fusion involved in this procedure, and the number of chromosomes will remain the same. With the exception of specific situations where there is a possibility that a rare mutation will occur, it will inherit the same genes as the parent.

The benefits of asexual reproduction are as follows:

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The horizontal component of the force acting on the crate is -25.31 N.None of the given option are correct.

Force is defined as the push or pulls applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.

Resolve the given forces as;

The horizontal component of the 45 N is,45 cos65°.

\(\rm F_H=F cos 65^0 \\\\\ \rm F_H=45 cos 65^0 \\\\ F_H==-25.31 \ N\)

Hence,the horizontal component of the force acting on the crate is -25.31 N.

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The 64-year-old male can hear sounds at a minimum intensity 100 times lower than the 74-year-old female. This reflects a substantial difference in hearing sensitivity due to age-related hearing loss.

To calculate the ratio of the minimum sound intensities heard by a 64-year-old male and a 74-year-old female, we can use the formula:

\(\text{Ratio} = 10^{\left(\frac{{\text{dB2} - \text{dB1}}}{10}\right)}\)

Given that the lowest relative intensity heard by the 64-year-old male is 40 dB (dB1) and the lowest relative intensity heard by the 74-year-old female is 20 dB (dB2), we can substitute these values into the formula:

\(\text{Ratio} = 10^{\left(\frac{{20 - 40}}{10}\right)}\)

Simplifying the exponent inside the parentheses:

\(\text{Ratio} = 10^{-\frac{20}{10}}\)

Calculating the ratio:

Ratio = 10⁻²

Ratio = 0.01

Therefore, the ratio of the minimum sound intensities heard by a 64-year-old male and a 74-year-old female is 0.01 or 1:100.

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The Carolingian Empire began when Charlemagne was crowned by the Pope in 800.

This event marked the formal recognition of Charlemagne as the emperor of the Carolingian Empire, which encompassed a significant portion of Western Europe. Charlemagne's crowning by the Pope demonstrated the close relationship between the Carolingian rulers and the papacy, solidifying their authority and status as the dominant power in the region. The establishment of the Carolingian Empire under Charlemagne's rule marked a significant political and cultural development in Europe during the early Middle Ages.

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Tidal volume is the amount of air that is inhaled and exhaled during normal breathing. It is about 500 mL in an adult.

Inspiratory reserve volume is the amount of air that can be inhaled in addition to a normal tidal volume. It is about 3000 mL in an adult.

Expiratory reserve volume is the amount of air that can be exhaled in addition to a normal tidal volume. It is about 1100 mL in an adult.

Forced vital capacity is the maximum amount of air that can be exhaled after a maximal inspiration. It is about 4800 mL in an adult.

Based on the graph, the following data can be filled in:

Lung volume Figure B

Tidal volume 6000 mL

Inspiratory reserve volume 7000 mL

Expiratory reserve volume 8000 mL

Forced vital capacity 11000 mL

Please note that these values are just estimates and may vary from person to person.

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Answer:

Answer choice B!

Explanation:

Study Island work

Answer:A

I DID THIS ON STUDYILSLAND

International space station is the mission of NASA. It has launched 134 successful space missions.

International space station is a huge place in the space but in the close orbit with all possible facilities for astronauts , scientists and others

The National Aeronautics and Space Administration (NASA) is an acronym for the National Aeronautics as well as Space Administration. NASA was established as a division of the United States government on October 1, 1958. NASA is just in charge of all research and technology related to aviation and space in the United States.

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The frequency of a photon of light at 589.6 nm is 5.07 × 10^14 Hz and  the energy of a photon of light at 589.6 nm is 3.32 × 10^-19 J.

The bright yellow light emitted by a sodium vapor lamp consists of two emission lines at 589.0 and 589.6 nm. The frequency and the energy of a photon of light at each of these wavelengths are explained below:1. Frequency of a photon of light at 589.0 nm: Given, wavelength of light, λ = 589.0 nm Using the formula,

speed of light = frequency × wavelength c = λ × νwhere c = speed of light and ν = frequency of light

The frequency of light can be calculated by rearranging the above formula:ν = c/λSubstituting the given values,ν = (2.998 × 10^8 m/s) / (589.0 × 10^-9 m)ν = 5.09 × 10^14 Hz Therefore, the frequency of a photon of light at 589.0 nm is 5.09 × 10^14 Hz.2. Energy of a photon of light at 589.0 nm :The energy of a photon of light can be calculated using the formula: E = hν

where E = energy of photon, h = Planck's constant, and ν = frequency of light Substituting the given values ,E = (6.626 × 10^-34 J·s) × (5.09 × 10^14 Hz)E = 3.38 × 10^-19 J

Therefore, the energy of a photon of light at 589.0 nm is 3.38 × 10^-19 J.3. Frequency of a photon of light at 589.6 nm: Given, wavelength of light, λ = 589.6 nm Using the formula,

speed of light = frequency × wavelength c = λ × νwhere c = speed of light and ν = frequency of light

The frequency of light can be calculated by rearranging the above formula:ν = c/λSubstituting the given values,ν = (2.998 × 10^8 m/s) / (589.6 × 10^-9 m)ν = 5.07 × 10^14 Hz Therefore, the frequency of a photon of light at 589.6 nm is 5.07 × 10^14 Hz.4. Energy of a photon of light at 589.6 nm: The energy of a photon of light can be calculated using the formula:

E = hν

where E = energy of photon, h = Planck's constant, and ν = frequency of light Substituting the given values, E = (6.626 × 10^-34 J·s) × (5.07 × 10^14 Hz)E = 3.32 × 10^-19 J Therefore, the energy of a photon of light at 589.6 nm is 3.32 × 10^-19 J.

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The ping pong ball gets more friction from the floor and it reduces the kinetic energy of a moving object by change it into heat energy. Therefore, the statement is true.

Friction is a kind or force which resist the motion of a body. Friction results from the close contact between two surfaces and it increases when they rub together.

Friction opposes the force which makes the displacement of a body. Hence it is given a negative sign. Kinetic energy of a body is generated by virtue of its motion.

When friction acts on an object due to roughness in surface, it converts the kinetic energy of the moving object to heat energy loss. Thereby, the object fails to move smoothly.

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The strong nuclear force, leptons do not interact with this force and include particles like electrons and muons.

Fundamental particles are the building blocks of matter and can be grouped into two categories based on their intrinsic properties and interactions with other particles: fermions and bosons. Fermions are the particles that make up matter and are divided into two subcategories: quarks and leptons. Leptons are fundamental particles that do not participate in the strong nuclear force, while quarks are particles that do participate in the strong nuclear force and are always found within hadrons, which are particles made up of quarks.

Hadrons are subdivided into two categories: baryons and mesons. Baryons are hadrons made up of three quarks, while mesons are hadrons made up of one quark and one antiquark. Some examples of baryons include the proton and the neutron, which are both made up of up and down quarks. Mesons include particles like the pion, kaon, and eta meson.

Leptons, on the other hand, are particles that do not interact with the strong nuclear force and include electrons, muons, and taus, as well as their corresponding neutrinos. Electrons are negatively charged particles that orbit the nucleus of atoms, while muons are similar in many ways to electrons, but are about 200 times more massive. Taus are even more massive than muons.

Overall, the categorization of fundamental particles into hadrons and leptons is based on their interactions with other particles, particularly with respect to the strong nuclear force. While hadrons are made up of quarks and are subject to the strong nuclear force, leptons do not interact with this force and include particles like electrons and muons.

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Answer:

Velocity can be directly added or subtracted.

For example, if a boat has a velocity V in still water.

And now you put the boat in a river with a current that has a velocity V'

The total velocity of the boat in that river is just the addition of these two velocities.

Velocity in the river  = V + V'

Where the only tricky part is that the velocity is a vector, so you need to take in account the directions of each vector.

In this case, we have a plane with a maximum velocity of 160km, let's assume a direction for this velocity, let's say that is in the positive x-direction.

Then we can write the velocity in the vector form:

velocity  = (vel in x-axis, vel in y-axis)

The velocity of the plane can be written as:

v = (160km/h, 0)

Now we add a crosswind of 30km/h

crosswind means that it is perpendicular, then it acts on the y-axis.

Then the total velocity of the plane will be:

velocity = (160km/h, 0) + (0, 30km/h)

velocity = (160km/h, 30km/h)

Now you can compute the total velocity of the airplane as the module of that vector.

Remember that for a vector (x, y) the module is:

mod = √(x^2 + y^2)

Then the module of the velocity is:

v = √( (160km/h)^2 + (30km/h)^2) = 162.8 km/h

Answer:

a = 1.5 m/s^2

Explanation:

Total force = 700 + 800 = 1500 N

then because   F = ma

                         1500 N  = 1000 kg  *  a

                                a = 1.5 m/s^2