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1) Specific heat at constant pressure Cp 2) Specific heat at constant volume Cv Specific heat at constant pressure (Cp): It is the amount of heat required to rise the temperature of 1 mole of gas at constant pressure through 1K. Specific heat at constant volume (Cv): it is the amount of heat required to rise the temperature of 1 mole of gas at constant volume through 1K.

1) Specific heat at constant pressure Cp 2) Specific heat at constant volume Cv Specific heat at constant pressure (Cp): It is the amount of heat required to rise the temperature of 1 mole of gas at constant pressure through 1K. Specific heat at constant volume (Cv): it is the amount of heat required to rise the temperature of 1 mole of gas at constant volume through 1K.

A solid or a liquid when heated, does not undergo any change in the volume or pressure. But in case of agas, both the pressure and volume change on heating. Therefore,specific heatof agas isdefined either at constant volume or at constant pressure and hence agas has two specific heats.

Here is your answer,

As the heat capacities are equal , so m₁C₁ = m₂C₂

Let C be the specific heat of the composite body. Then,

(m₁ + m₂) C = m₁C₁ + m₂C₂

= m₁C₁ + m₁C₁ = 2 m₁C₁

C = 2 m₁C₁/m₁+ m₂ = 2 m₁C₁/ m₁ + m₁ + m₁ C₁/C₂

= 2 C₁C₂/C₁ + C₂

=x²-x-x+1=x(x-1) -1(x-1) =(x-1) (x-1)

(×-1) (×-1) is correct answer

(x-1)² is the correct answer of the given question

x^2-2x+1=x^2-x-x+1=x(x-1)-1(x-1)=( x-1)( x-1); x=1/1

we can write this as (x-1).(x-1)

The hotter an object is, the faster the motion of the molecules inside it. Thus, theheatof an object is the total energy of all the molecular motion inside that object.Temperature, on the other hand, is a measure of the averageheat orthermalenergy of the molecules in a substance.

Heat capacityia heat required to raise​ the temperature of a substance by 1 degree Celsius.

Specific heatis heat required to raise the temperature of a unit mass of a substance by 1 degree Celsius.

Let's assume substance'A'has specific heat of 1 KJ/kgK. Thespecific heat remains the sameif I take 5kg of 'A' or 10kg, because it is defined as per Kg of that substance.

On the other hand heat capacitydepends on mass of the substance. If I have 5kg of that substance then heat capacity will be 5KJ/Kg, if I have 10kg then heat capacity becomes 10KJ/kg . Because more the mass, more it will take to raise the temperature by 1 degree Celsius.

Thediode valveis socalledbecause it has just two electrodes – the cathode and the anode. These correspond to the two electrodes of the originaldiode valve,the cathode being the electrode that is heated and emits electrons, and the anode being the electrode that collects the electrons

To find the time required to travel the given distance in given just devide the distance by time

7/11 is the correct answer of the given question

previous image uploaded by mistake.this is the right solution for the asked question

frequency =no of waves per second

f=1/25

f=0.04

Now

(d) -30 mj I don't know answer only my guess

Given R = 4.2 ohmrho = 48 x 10^-8 ohm mr = d/2 = 0.4/2 = 0.2 mm = 2 x 10^-4 mpi = 22/7So needed L = pi r^2 R / rhoL = 22/7 * 4 * 10^-8 * 4.2 / 48 x 10^-8So L =1.1 m

since length is given as 1.98m it can be changed into cm as 1.98m=198cm

As 2 and 2 are in seriesso resultwill be2*2/2+2= 1now1 parallel with 1so resultant= 1+1= 2nowoverall will be2*2/2+2= 1and 2+1= 3so 3 uc is right

your answer is not matched from this given option

Given R = 4.2 ohmrho = 48 x 10^-8 ohm mr = d/2 = 0.4/2 = 0.2 mm = 2 x 10^-4 mpi = 22/7So needed L = pi r^2 R / rhoL = 22/7 * 4 * 10^-8 * 4.2 / 48 x 10^-8So L =1.1 m=110cm

If in series=C1+C2=20+5=25uFIf in parallel C=C1*C2/C1+C2=20*5/25=4uF

C=√p1/p whereby;c=speed p=pressure acting on the sound p1=density of mediumThe law states that in mediums of equal density & elastic force(the medium's pressure in Pascals,or Newtons over area measured in meters squared),all pulses are equally swift.The formula had a loop hole in that these mediums easily deforms when the forces are applied due to sound waves is being attenuated and absorbed when passing through solids that are easily deformed when force is applied.Laplace's correction to Newton's formula was that isothermal conditions were to prevail when sounds travels through air,Newton has applied Boyle's law to the changes in pressure and volume.

B) 12v is the correct answer

a) 8 V is the correct answer

TRAP is having both level and edge sensitive interrupt s

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4) is the correct answer

A current carrying wire produces circular lines of force centered at the wire. The direction of the current is by convention the direction in which positive charges move.

to keep the motor turning the polesof the eletrongnel must reverse

Ferrous Metals mostly contain Iron. They have small amounts of other metals or elements added, to give the required properties. Ferrous Metals are magnetic and give little resistance to corrosion. Some examples of the ferrous metals we deal with:Vehicle scrap metalDemolition Site scrap metalMetal offcuts from manufacturing industries

Non-Ferrous Metals do not contain Iron, are not magnetic and are usually more resistant to corrosion than ferrous metals.

Some examples of Non-Ferrous Metals we deal with are:

Aluminium & Aluminium Alloys

Copper

Brass

Lead

Zinc

Stainless Steel

Electrical Cable

The Difference between Motor and Generator are as follows:1. The Motor converts electric energy into mechanical energy, whereas generator does the opposite.2. Electricity is used in the motor, but the generator produces the electricity.3. The Shaft of the motor is driven by the magnetic force developed between armature and field windings whereas, in the case of the Generator the Shaft is attached to the rotor and is driven by mechanical force.4. The current is to be supplied to the armature windings in case of a Motor, and in Generator, current is produced in the armature windings.5. Motor follows Fleming’s Left hand rule while Generator follows Fleming’s Right hand rule.6. The example of Motor is an electric car or bike where electric current is supplied to the machine or device, and it gets converted into mechanical motion and, as a result, the car or bike moves. 7. The example of Generator is that in power stations the turbine is used as a device which converts mechanical energy of force of water falling from the dam to generate electric energy.

Ageneratorconverts mechanical energy into electrical energy, while amotordoes the opposite - it converts electrical energy into mechanical energy. Both devices work because of electromagnetic induction, which is when a voltage is induced by a changing magnetic field

Some of the internal challenges are.

Education and skills.India has 487 million workers, but more than two-thirds of Indian employers report that they struggle to find workers with the right skills. This contrast points to clear opportunities ahead, while posing serious questions as to how India can get the best out of its people through education and training. India’s rank in the Forum’s Human Capital Report is 78th of 122 countries.

Urbanization. More than one-third of Indians live in cities. It is estimated that, by 2050, as many as 900 million people will be living in urban centres. Meeting their needs while safeguarding the environment will require innovative models of urban development.

Health. India faces the double burden of infectious diseases and a dramatic rise in non-communicable diseases, now estimated to account for more than half of all deaths. These include cardiovascular disease, cancer, chronic respiratory conditions and type 2 diabetes, all of which affected over 63 million Indians in 2012 alone. Apart from causing individual tragedies, these diseases are also are a major economic threat. According to a study by the Forum in collaboration with the Harvard School of Public Health, India stands to lose $6.15 trillion due to non-communicable diseases and mental disorders by 2030.

Sanitation. Many health challenges are linked to sanitation. Narendra Modi announced a special focus on this topic. Linking a clean environment to human capital productivity is an issue that should be looked at as an investment and not a cost. The challenge is to identify and implement the right way to provide 1.2 billion Indians with a clean environment.

Gender. There is a need for India to closely examine the norms that allow violence and a broader pattern of gender discrimination to continue. The gender gap holds back economies all around the world. Any society that does not value women as much as men is not reaching its full potential.

Water scarcity. India’s large population places a severe strain on its natural resources, and most of its water sources are contaminated by sewage and agricultural run-off. While progress has been made, gross disparities in access to safe water remain. The World Bank estimates that 21% of communicable diseases in India are related to unsafe water, and diarrhoea alone causes more than 1,600 deaths daily.

Transparency. The vast majority of Indians say transparencyis their number one concern, according to polls before the recent election, with figures peaking at over 90% among young voters. People are right to be concerned. Transparency issues are not just a daily irritation, they are a drag on the whole economy, hampering competitiveness, growth and development. For example, corruption in connection with border administration – and the associated inefficiencies, delays and lack of predictability – is part of the explanation for India ranking 96th out of 138 countries in the Forum’s latest Global Enabling Trade Report. India is home to 23% of the world’s population, but sees only 2% of global trade.

These all can be represented in map form.

The speed is proportional to the square root of the absolute temperature, giving an increase of about 0.6 m/s per degree Celsius. 0.6 m/s due to the change of 1 degree Celsius. 1 m/s due to the change of 1/0.6 degree Celsius. 1.53 m/s due to the change of 1/0.6 * 1.53 = 2.55 degree Celsius.

1940 – 1956: First Generation – Vacuum Tubes

These early computers used vacuum tubes as circuitry and magnetic drums for memory. As a result they were enormous, literally taking up entire rooms and costing a fortune to run. These were inefficient materials which generated a lot of heat, sucked huge electricity and subsequently generated a lot of heat which caused ongoing breakdowns.

1956 – 1963: Second Generation – Transistors

The replacement of vacuum tubes by transistors saw the advent of the second generation of computing. Although first invented in 1947, transistors weren’t used significantly in computers until the end of the 1950s. They were a big improvement over the vacuum tube, despite still subjecting computers to damaging levels of heat. However they were hugely superior to the vacuum tubes, making computers smaller, faster, cheaper and less heavy on electricity use. They still relied on punched card for input/printouts.

1964 – 1971: Third Generation – Integrated Circuits

By this phase, transistors were now being miniaturised and put on silicon chips (called semiconductors). This led to a massive increase in speed and efficiency of these machines. These were the first computers where users interacted using keyboards and monitors which interfaced with an operating system, a significant leap up from the punch cards and printouts. This enabled these machines to run several applications at once using a central program which functioned to monitor memory.

1972 – 2010: Fourth Generation – Microprocessors

This revolution can be summed in one word: Intel. The chip-maker developed the Intel 4004 chip in 1971, which positioned all computer components (CPU, memory, input/output controls) onto a single chip. What filled a room in the 1940s now fit in the palm of the hand. The Intel chip housed thousands of integrated circuits. The year 1981 saw the first ever computer (IBM) specifically designed for home use and 1984 saw the MacIntosh introduced by Apple. Microprocessors even moved beyond the realm of computers and into an increasing number of everyday products.

2010- : Fifth Generation – Artificial Intelligence

Computer devices with artificial intelligence are still in development, but some of these technologies are beginning to emerge and be used such as voice recognition.

AI is a reality made possible by using parallel processing and superconductors. Leaning to the future, computers will be radically transformed again by quantum computation, molecular and nano technology.

wood is obtained from tree in jungles

wool is obtained by Sheeps

Woolis the textile fiberobtainedfrom sheep and other animals, including cashmere and mohair from goats, qiviut from muskoxen, from hide and fur clothing from bison, angora from rabbits, and other types ofwoolfrom camelids; additionally, the Highland and the Mangalica breeds of cattle and swine, respectively,

wool is obtained by sheep's 🐑

Wool is obtain from sheeps and some plants also

Wool is obtained from sheep 🐑.

Wool is obtained from sheep .

🐑 sheep is the correct answer of the given question

wool is obtained from the upper coating of different types of sheeps and its breeds

wool is obtained from sheep and other animals

wool is obtained by 🐑