if 162.4 j of heat are added to a gas contained within a cylinder and the gas expands, doing 87.3 j of work, what is the change in internal energy of the system?

If 2.5 minutes is the maximum access time for a magnetic tape, 1.25 minutes is the average access time.

how long it takes to get a piece of information out of storage is access time. If the file holding the necessary data is on magnetic tape instead of a magnetic disc, the access time may be measured in minutes rather than in milliseconds.

The average access time is the sum of the average seek time, the command overhead, and the average latency.

Given that:  the maximum access time for a magnetic tape = 2.5 minutes.

Hence, the the average access time = 2.5 minutes/2 = 1.25 minutes.

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The rhetorical device used by Sojourner Truth is rhetorical question.

Rhetorical device refers to the way an author uses to pass information to the listener, in order to persuade them to buy into his opinion.

For example, the phrase ain't I a woman, is repeated by the sojourner truth, in order to encourage the audience to think about the significance of the arguments that have been presented.

By asking this, Sojourner Truth encourages the audience to consider the treatment given to women, and in particular black women, and wonder whether it is fair.

The question is not meant to be answered, but instead it is meant to encourage the audience to reflect on a particular topic.

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The answer to this question is:

Simply it can be calculate using the equation Q=It, here Q is the charge in coulombs , I current in Amps and t is the time in seconds.

so the answer is Q = 10*60 = 600 coulomb.

The equation you are referring to, Hnet=fxHnet, relates to the net arc energy input of a welding process.

The net arc energy input, Hnet, is equal to the product of the welding current, f, and the welding voltage, Hnet. This equation is used to calculate the amount of energy that is transferred to the weld during the welding process.

It is important to monitor the net arc energy input to ensure that the weld is of high quality and to prevent defects such as porosity and cracking.

By adjusting the welding current and voltage, the net arc energy input can be optimized for the specific welding application.

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Answer:

hmmm

Explanation:

error of parallax or poor measurement

poor structural material

Answer:

Diurnal motion, apparent daily motion of the heavens from east to west in which celestial objects seem to rise and set, a phenomenon that results from the Earth's rotation from west to east. The axis of this apparent motion coincides with the Earth's axis of rotation.                    Retrograde motion is an APPARENT change in the movement of the planet through the sky. It is not REAL in that the planet does not physically start moving backwards in its orbit. It just appears to do so because of the relative positions of the planet and Earth and how they are moving around the Sun.

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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Answer:

C. A baseball bat strikes a baseball.

Explanation:

Newton's second law of motion states that acceleration happens when force is applied on the mass.

A baseball bat strikes a baseball is the best example of Newton's second law of motion because acceleration of the baseball is directly proportional to the force by which baseball bat hit it.

Hence, the correct option is 'C. A baseball bat strikes a baseball.'

Answer:

Baseball bla

Explanation:

yes

Answer:

Earthworm lives in the soil, eats the soil which has organic matter such as decaying vegetation or leaves and crawls. While housefly lives in dirty places, feeds on faeces and flies.

Hope I get a brainliest answer.

For this question, we are first going to need to find the charge on the plate

We can do that using the amount of electrons per plate

q = Ne = (2.9 x 10^9)(1.6 x 10^-19) = 4.654 x 10^-10 C

Now that we have the charge, we can find Area with

874940.74 = 4.654x 10^-10/A(8.85x10^-12)

A = 6.0108 x 10^-5 m^2

A = pi(d^2)/4

d = 0.00874 m = 8.748 mm

Answer:

3,033,276 J

Explanation:

The work can be calculated as

W = Fd

Where F is the force and d is the distance.

Replacing F by 29,738 N and d by 102 m, we get:

W = (29,738 N)(102 m)

W = 3,033,276 J

Then, it has done 3,033,276 J

Answer:

28.54J

Explanation:

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Class 11

>>Physics

>>Systems of Particles and Rotational Motion

>>Linear Momentum of a System of Particles

>>A bullet of mass 0.012 kg and horizontal

Question

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A bullet of mass 0.012 kg and horizontal speed 70 ms

−1

strikes a block of wood of mass 0.4 kg and instantly comes to rest with respect to the block. The block is suspended from the ceiling by means of thin wires. Calculate the height to which the block rises. Also, estimate the amount of heat produced in the block.

Hard

Solution

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Mass of the bullet, m = 0.012 kg

Initial speed of the bullet, u

b

=70m/s

Mass of the wooden block, M=0.4 kg

Initial speed of the wooden block, u

B

=0

Final speed of the system of the bullet and the block = v m/s

Applying the law of conservation of momentum:

mu

b

+Mu

B

=(m+M)v

0.012×70+0.4×0=(0.012+0.4)v

v=0.84/0.412

=2.04 m/s

For the system of the bullet and the wooden block:

Mass of the system, m

′

=0.412 kg

Velocity of the system =2.04m/s

Height up to which the system rises = h

Applying the law of conservation of energy to this system:

Potential energy at the highest point = Kinetic energy at the lowest point

m

′

gh=(1/2)m

′

v

2

h=

2g

v

2

=

2×9.8

(2.04)

2

=0.2123m

The wooden block will rise to a height of 0.2123m.

The heat produced = Kinetic energy of the bullet - Kinetic energy of the system

=(1/2)mu

2

−(1/2)m

′

v

2

=(1/2)×0.012×(70)

2

−(1/2)×0.412×(2.04)

2

=29.4−0.857=28.54J

Here are four major drawbacks associated with the use of fossil fuels:

Environmental Impact: Fossil fuel combustion releases greenhouse gases, including carbon dioxide (CO₂) and methane (CH₄), which contribute to climate change and air pollution. The burning of coal, in particular, emits significant amounts of CO₂, a major contributor to global warming.

Air Pollution: Fossil fuel combustion also releases various pollutants, such as sulfur dioxide (SO₂), nitrogen oxides (NOₓ), and particulate matter. These pollutants contribute to air pollution and can have detrimental effects on human health.

Depletion of Natural Resources: Fossil fuels are finite resources that take millions of years to form. As power stations consume significant amounts of fossil fuels, their extraction and use can lead to resource depletion.

Dependency on Price Volatility: Fossil fuel prices can be volatile due to various factors, including geopolitical tensions, supply disruptions, and fluctuations in global demand. Power stations reliant on fossil fuels can be vulnerable to price fluctuations, which can affect electricity costs and the stability of energy supply.

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Answer:

The answer is "\(0.13562748\)"

Explanation:

Please find the complete question in the attached file.

Using formula:

\(\bold{U_s=\frac{v^2}{rg}}\)

Given:

\(r=1.60 \times 10^2 \ m\\\\g=9.8\\\\v= 52.5\ \frac{km}{hr}= 14.583\ \frac{m}{s}\)

put the value into the above-given formula:

\(U_s= \frac{14.583^2}{160 \times 9.8}\)

    \(= \frac{212.663889}{1568}\\\\=0.13562748\)

Other than Faraday, Joseph Henry independently discovered that a magnetic field can produce an electric current.

Joseph Henry, an American scientist, independently made significant contributions to the understanding of electromagnetic induction. In 1831, around the same time as Michael Faraday, Henry discovered that a changing magnetic field could induce an electric current in a nearby circuit. He conducted experiments using electromagnets and coils of wire, demonstrating the principles of electromagnetic induction.

Henry's experiments involved winding wire coils around iron cores and observing the effects of magnetic fields on the coils. He noticed that when the magnetic field through the coil changed, it induced an electric current in the wire. This discovery laid the foundation for the development of transformers, electric motors, and generators, which are integral to modern technology.

Henry's work in electromagnetic induction was highly influential and widely recognized. In fact, his experiments and discoveries predated Faraday's published work on the topic. Although Faraday is often credited with the discovery of electromagnetic induction, it is important to acknowledge Joseph Henry's independent contributions.

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The answer is False. A polarized material does not need to have a nonzero net electric charge. Polarization occurs when the positive and negative charges within a material are displaced relative to each other, creating an electric dipole moment.

This can happen in materials such as dielectrics or insulators, which do not conduct electricity. The net electric charge of a polarized material can still be zero, as the overall positive and negative charges remain balanced, but the charges are spatially separated. Polarization plays an important role in phenomena such as capacitance, dielectric constant, and polarization-induced electric fields.

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A magnet that is positively charged on one end and negatively charged on the other end is an example of D. polarity.

In the field of science, polarity can be described as a phenomenon in which the same substance has different charges in it. The electrical charges are separated inside the same substance or molecule as a result of polarity.

One part of a substance will be negative charges whereas the other will be positively charged as a result of polarity.

A magnet is an example of a substance that can easily gain or lose polarity. When the charges inside a molecule are separate at both ends, we will say that the magnet has gained polarity.

Although a part of your question is missing, you might be referring to this question:

A magnet that is positively charged on one end and negatively charged on the other end is an example of

A cohesion.

B adhesion.

C gravity.

D polarity.

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Answer:

the answer is A and B, decrease in distance and decrease in mass

Answer:

no sorry

Explanation:

Answer:

yes i play genshin

Explanation:

ignore how this is a year late...what server r u on ?im on america and europe!!!!!!!!!!!!(≧∇≦)

The dwarf planet Eris orbits the Sun every 557 years. The average distance (semimajor axis) from the Sun is 67.7 a.u.

A line segment that passes through the center and periphery foci and terminates at the broadest points of the perimeter is known as an ellipse's main axis in geometry. The semi-major axis goes from the center via a focus and out to the periphery since it is one of the main axes. In essence, it is the radius of an orbit at its two farthest points. The radius serves as the semi-major axis for the unique instance of a circle. The semi-major axis can be compared to the long radius of an ellipse.

A line segment associated with most conic sections, such as ellipses and hyperbolas, and which forms right angles to the semi-major axis is known as the semi-minor axis (a semi-minor axis).

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Answer:

the switch or the wire

Explanation:

Answer:

  75.645 J

Explanation:

The kinetic energy is related to the mass and velocity by the formula ...

  KE = 1/2mv²

For the given mass of 0.045 kg, and velocity of 41 m/s, the kinetic energy is ...

  KE = 1/2(0.045 kg)(41 m/s)² = 75.645 J

__

The unit of energy, joule, is a derived unit equal to 1 kg·m²/s².

With 4.3 m/s velocity, is the cheetah running.

velocity= distance/time

distance=27.6 m

time=6.3 s

velocity=27.6 m/6.3 s

velocity=4.3 m/s

A vector number known as velocity describes "the pace at which an item changes its location." Imagine a person moving quickly, taking one stride ahead, one step back, and then beginning from the same place each time. A vector quantity is velocity. As a result, velocity is aware of direction. One must consider direction while calculating an object's velocity. Saying that an item has a velocity of 55 miles per hour is insufficient. The direction must be included in order to adequately characterize the object's velocity. Simply said, the velocity vector's direction corresponds to the motion of an item.

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Answer: Reflecting telescopes focus light with a series of mirrors, while refracting telescopes use lenses.

Explanation:

Answer:

6 seconds

Explanation:

\(d=v_ot+\dfrac{1}{2}at^2\)

Since the object is being dropped out of the window, it has no initial velocity.

\(176.4=\dfrac{1}{2}(9.8)t^2 \\\\t^2=36 \\\\t=6\text{ seconds}\)

Hope this helps!

Answer:

6 seconds

Explanation:

The formula for free fall is:

h = 1/2gt^2

We know that the height is 176.4 meters. We also know that on Earth, gravity is 9.8 m/s^2.

h=176.4

g=9.8

Substitute these values into the formula.

176.4=1/2(9.8)*t^2

Multiply 9.8 and 1/2

176.4=4.9*t^2

t^2 and 4.9 are being multiplied. The opposite of multiplication is division. Divide both sides by 4.9

176.4/4.9=4.9*t^2/4.9

176.4/4.9=t^2

36=t^2

t is being squared. The opposite of squared is the square root. Take the square root of both sides.

√36=√t^2

√36=t

6=t

t=6 seconds

It will take 6 seconds for the object to fall 176.4 meters.

Explanation:

answer is the 3rd law of motion

I hope it will be helpful for you

please mark as brainest answer

thank you

Answer:

Fossil Fuels are natural fuels like coal or gas that were formed millions of years ago and take millions of years to form. They are formed from the remains of past living organisms.

Explanation:

Well you do no really need an explanation for this one...