Estimate the average Cp value, in kJ/kg.K of a gas if 522 kJ of heat are necessary to raise the temperature from 300 K to 800 K holding the pressure constant.

Answer:

720W

Explanation:

PLEASE MARK ME AS BRAINLIEST AND HAVE A NICE DAY

Answer:

F=k*x or

k is the spring constant, in Newtons per meter (N/m), and x is the displacement of the spring from its equilibrium position. The spring constant, k, is representative of how stiff the spring is. Stiffer (more difficult to stretch) springs have higher spring constant

Explanation:

Answer:

N/m

Explanation:

Spring force is defined as

F=kx

So,

the terms for spring constant can be rearranged to find

F/x =k

which simplifies to

N/m

since force F is in newtons, and displacement x is in meters.

Answer:

The greater the amplitude of a wave, the ( less/more ) energy it is transferring.

The more energy; so that means less would be the incorrect word

As waves spread out from a source, the energy they transfer gets more ( concentrated/ spread out )

Spread out; so that means concentrated would the be the incorrect word

and so the amplitude of the waves gets ( larger/ smaller)​

Smaller; so that means larger is the incorrect word

Answer:

I= 1/2 mr^2 solve for mass m.

radius given

angular momentum: I*w=I*2

KE= 1/2 I w^2= 1/2 I *2^2

Explanation:

The mass of the uniform disc at the given moment of inertia is determined as 16.67 kg.

The mass of the uniform disc is calculated from the moment of inertia of the disc.

I = ¹/₂mr²

2I = mr²

m = (2I)/r²

where;

m = (2 x 75)/(3²)

m = 16.67 kg

Thus, the mass of the uniform disc at the given moment of inertia is determined as 16.67 kg.

Learn more about moment of inertia here: https://brainly.com/question/3406242

#SPJ9

Answer:

0.065 seconds

Explanation:

i) Change in momentum is equal to impulse so, m(v-u) = ft  (Where f is force and t is time)

ii) Since we know the mass of the ball, we change grams to the SI unit of kilograms, kg so 0.057kg

iii) We are also told that the ball CHANGES direction, so we know that the new velocity is the negative value of the initial one,

iv) Putting this all together we get 0.057(25--15) which is the same as 0.057(25 + 15)

v) We get an impulse of 2.28 Ns

vi) We take this value and divide it by 35 as we want the Force alone and not the time,

vii) To which we get 0.065 seconds,

Hope this was helpful!!

Answer:

D

Explanation:

If the distance is reduced by factor of 2, lets say the distance was 10cm

reducing by a factor of 2 will leave the distance at 5cm

so the electric force increases by a factor of 2

Answer:

Cyberpunk has worst Physics

If a capital letter R is seen in an ordinary mirror, it will look like option D. The correct option is D.

Something that is reversed with respect to a previous instance of the same thing, or with respect to a plane or axis in between. The best illustration of a virtual image is a reflection in a mirror.

Real images are created by intersecting rays, and virtual images are created by diverging rays. A mirror creates a virtual image by reflecting a real image (blue) back to the viewer (red), giving the impression that the items in the image are behind the mirror's surface and facing the other way (purple).

The R in the mirror will look vertically inverse. The types of mirrors are plane mirrors, rotating mirrors, inclined mirrors, and spherical mirrors.

Therefore, the correct option is D.

To learn more about mirror view, refer to the link:

https://brainly.com/question/3198130

#SPJ2

Answer:

Explanation:

this is a wste of time and question people realy want to learn in this page.

lost some electrons I think

Due to stronger cohesive than adhesive forces mercury levels falls in a capillary tube. However, water level rises in a capillary tube due to greater adhesive than cohesive forces.

Capillary action refers to the rise or fall of a liquid in a narrow tube.

The height to which a liquid is depressed or rises in a narrow tube depends on the strength of the cohesive forces of the molecules of the fluid compared to the adhesive forces between the molecules of the fluid and the walls of the tube.

In water, the adhesive forces between the walls of the tube and water molecules is greater than the cohesive forces between water molecules, hence water rises in a capillary tube.

In mercury the adhesive forces between the walls of the tube and water molecules is less than the cohesive forces between mercury molecules, hence mercury levels falls in a capillary tube.

Learn more about capillary action at: https://brainly.com/question/14451466

Answer:

Paper is an insulator.

Please mark as brainliest

Answer:

Paper is an insulator because it don't allow heat to pass or flow through them.

Conductor

•Are materials that can transfer heat easily.

•Allowing heat to transfer freely through them.

Ex: cooking pan

    silver

    metal spoon

    nail

Insulator

Are materials that do not allow heat to pass through them.

Ex: rubber

     wood

     leather

     plastic

     paper

Answer: The answer is D: Synthetic polymers including polyester and nylon, make up a large category of synthetic material.

Explanation:

Answer:

C

Explanation:

The longer an object, the slower it vibrates and since frequency is the number of oscillations an object makes per second, then you can say the longer the object, the lower the frequency, and the inverse is true.

Answer:

C. 11.2 seconds

The mean value of three trials of 11, 11.4 and 11.2 seconds will be 11.2 seconds

The mean for any data is defined as the ratio of the sum of all the data to the number of the data.

It is given that

[tex]t_1=11\ \ \ \ \ \ \ \ t_2=11.4 \ \ \ \ \ \ \ \ t_3=11.2[/tex]

Now the mean is given as

[tex]\rm Mean=\dfrac{t_1+t_2+t_3}{N}[/tex]

[tex]\rm Mean=\dfrac{11+11.4+11.2}{3}=11.2 \ Sec[/tex]

Hence the mean value of three trials of 11, 11.4 and 11.2 seconds will be 11.2 seconds

To know more about Mean follow

https://brainly.com/question/21577204

Answer:

9m/s

Explanation:

Average velovity= (Initial velocity+Final velocity)/2

or A.V=(0+18)/2

or A.V= 9m/s

A sprinter starting from rest reaches final velocity of 18.0 mi/h. The average velocity of the sprinter is 9.0 mi/h.

Given that the sprinter starts from rest and reaches a final velocity of 18.0 mi/h, we can assume that the sprinter accelerates uniformly. Therefore, her average velocity would be the average of her initial velocity (0 mi/h) and her final velocity (18.0 mi/h).

Average velocity = (Initial velocity + Final velocity) / 2

Average velocity = (0 mi/h + 18.0 mi/h) / 2

Average velocity = 18.0 mi/h / 2

Average velocity = 9.0 mi/h

Try to know more about average velocity:

https://brainly.com/question/28512079

#SPJ2

Answer:

The sun's interior is similar to the Earth's; it has a core, mantle, and crust

Answer:

In fact, God already knows how your story will end. The thing is, it’s really his story and he created you to be a unique and significant part of it. That’s why you can have faith that he is working to take care of you and to give you a good future. God repeatedly says in Scripture that he will one day reward us for our faith.

Good luck

Explanation:

h=vot-1/2gt²

h=30 x 3 - 1/2 x 9.8 x 3²

h = 45.9 m

t = 2to

t = 2 x 3 = 6s

Answer:

12,000 grams = 12 kg

Explanation:

Volume V = 20 x 20 x 30 cm³ = 12,000 cm³

density of water d = 1 g/cm³

so the mass is 12,000 grams = 12 kg

Answer:

°c to °F = 176°F

°c to K = 353 K

Explanation:

1, °c to °F = (°c × 9/5) +32

[tex](80 \times \frac{9}{5} ) + 32[/tex]

(16 × 9) + 32 = 144 + 32 = 176°F

2, °c to K = °c + 273

[tex]80 + 273[/tex]

= 353 K

pls Mark as the brainliest

The statement that best explains this difference is "As the block is moving across the table, friction will affect the block’s motion and thus could account for the difference" (option A).

In physics, friction can be defined as a force of resistance that occurs when an objects moves above a surface or above another object. Friction can be classified in four types:

This force opposes the movement of the object and therefore it can affect the velocity of the object by decreasing it. Based on this, it is likely that the difference in the calculation is because of friction as this was not considered (option A).

Note: This question is incomplete; here is the missing section:

A. As the block is moving across the table, friction will affect the block’s motion and thus could account for the difference.

B. It is possible that a small amount of the original block was lost during the explosion.

C. When the student did the calculation, the student assumed that the explosion occurred just as the block reached the origin. The difference in velocity could be due to the explosion occurring either just before or just after the origin.

D. The explosion created a force that affected the experiment.

E. Conservation of momentum is not the correct equation to apply to the explosion, since the two pieces apply forces to each other.

Learn more about movement in: https://brainly.com/question/11905668

#SPJ1

Answer:

The difference between the calculated and measured velocity of the piece of mass m2 can be attributed to several factors. Here are a few possible explanations:

1. Measurement error: It's possible that there were errors or inaccuracies in the measurements taken by the motion sensor. This could include issues with the sensor itself, calibration errors, or human error in recording the data.

2. Friction and air resistance: The experiment assumes an ideal scenario where there are no external forces acting on the block and the resulting fragments. However, in reality, there may be friction and air resistance present, which can reduce the velocity of the pieces after the explosion. These factors were not accounted for in the conservation of momentum calculations.

3. Internal forces: The explosion of the block into two pieces involves internal forces between the fragments. These forces may not be completely accounted for in the conservation of momentum analysis. If there are significant internal forces acting during the explosion, they could reduce the calculated velocity of the piece of mass m2 compared to the measured value.

4. Incomplete information: It's possible that there is additional information or factors that were not considered in the given description of the experiment. Without knowing all the details, it's challenging to pinpoint the exact reason for the discrepancy between the calculated and measured velocity.

In summary, the most likely explanation for the difference between the calculated and measured velocity of the piece of mass m2 is measurement error or the presence of external forces (such as friction and air resistance) and internal forces (during the explosion) that were not accounted for in the analysis.

Answer:

B

Explanation:

For every action,there is an equal but opposite reaction.

A low latitude, the energy transferred from the sun is high while at a high altitude the energy transferred from the sun is low.

Latitude is an angle which ranges from 0 degree at the Equator to 90 degrees at the poles of the Earth.

At higher latitudes, the sun's rays are less direct and a lower latitude the ray's of the sun are more direct. The farther an area is from the equator, the lower its temperature.

Thus, a low latitude, the energy transferred from the sun is high while at a high altitude the energy transferred from the sun is low.

Learn more about latitude and energy from sun here: https://brainly.com/question/8181064

The law of conservation of energy supports climate change research because the energy we use is released into the atmosphere, creating loop of continual absorption and releasing of heat.

The law states that energy can neither be created nor destroyed but can always be converted from one form to another.

In light of this, any energy used by humans or natural processes is not destroyed. Instead, they are converted into another form or released into the atmosphere.

In the atmosphere, absorption and release of heat energy by greenhouse gases and irradiation create a loop. This loop causes a net heating or cooling of the planet, a phenomenon that affects the climate.

More on the law of conservation of energy can be found here: https://brainly.com/question/20971995

Explanation:

The box will undergo an acceleration. Due to Newton's 3rd Law, any action causes an equal and opposite reaction. The equal and opposite force from the box will not cancel the force that you are applying.

Answer:

The box will not move as it is in a a stable condition

Explanation:

when an equal and opposite force acts on a body the effects of forces cancels out. provided the body can withstand the tensile and compressive actions of the forces. when both forces are coming together it leads to compression while tension refers to forces moving away fro, each other.

The answer is A.Yes

Explanation:

The amplitude of a wave is the height of a wave as measured from the highest point of the wave to the lowest on the wave.

Answer:

work done on the body is the product of the 3 quantities provided

Explanation:

Raising the object, the work done will be the potential energy.

potential energy equals mgh.

Get the remaining quantities and multiply it out g is usually 10m/s