akashkasukurthi7

State four examples of partial differential equations in physics 

State four methods of finding the solutions of PDE

Why is RNA necessary to act as a messenger? Why can't the code be taken directly from the DNA? How do some cells become brain cells and others become skin cells, when the DNA in ALL the cells is exactly the same? In other words, if the instructions are exactly the same, how does one cell become a brain cell and another a skin cell?

Draw an angle in standard position whose terminal side contains the point 

Find the distance from the origin to this point.

Which pair of angles shares ray AF as a common side?

you need to prepare 750.ml a diluted hydrochloric acid solution that has a molarity of .550m. the stock solution is 12.0m. how much of the stock solution must you take to make the diluted solution

There is a tiger ,deer, and fox in one forest ,deer and tiger are best friends ,one day deer was accidentally it loses her leg,so that deer is placed under a tree and tiger is giving food every day ,by seeing all this fox is thinking like this if i lost my leg I am also happily can eat good food without any problems 

Here 

Fox think like that , if you are the fox at that time what is your answer?  Will you think like that?

Horses are to race over a certain English meadow for a distance of 4.0 furlongs. If 1
furlong = 201.168 m, 1 rod = 5.0292 m and 1 chain = 20.117 m, calculate the distance in:

a) Rods
b) Chains

Nitrogen is made up of two isotopes, 14-N and 15-N. Given the nitrogen’s atomic weight of 14.007, what is the percent abundance of each isotope?

Solve the following differential

x^•• –x^• –30=0

Show if Energy Density and Young’s Modulus have the same dimensions.

A sample of naturally occurring silicon consists Si−28(amu=27.9769), Si−29(amu=28.9765) and Si−30(amu=29.9738). If the atomic mass of silicon is 28.0855 and the natural abundance of Si−29 is 4.67%, what are the natural abundance of Si−28 and Si−30?

Which one of the following laws of electromagnetism does not give the direction of magnetic field?
1) Right-hand thumb rule
2) Fleming's left-hand rule
3) Fleming's right-hand rule
4) Faraday's law of electromagnetic induction

 A non-spherical shining spoon can generally be considered as a -
1) Spherical mirror
2) Parabolic mirror
3) Plane mirror
4) Lens

The direction of acceleration in uniform circular motion is along the -
1) direction of motion
2) tangent to the circle at the point of observation
3) direction of velocity
4) direction perpendicular to velocity

Pyrolusite is an ore of ________
1) Manganese
2) Chromium
3) Titanium
4) Uranium

Which one of the following attributes is not true for uniform circular motion ?
1) The distance is always equal to the displacement
2) Velocity is always perpendicular to the radius of the circle
3) The speed of the body remain constant
4) The velocity of the body is continuously changing

A man weighing 65 kg jumps from a 100 ft high building with a load of 35 kg What will be the load experienced by him?
1) 20 kg
2) 100 kg
3) 200 kg
4) Zero

Find the area between the curve y=x (x-3) and the ordinates x=0 and x = 5.

There are 49 dogs signed up for a dog show. There are 36 more small dogs than large dogs. How many small dogs have signed up to compete? This question comes directly from a second grader's

What is the minimum amount of energy required to completely melt a 6.92 kg lead brick which has a starting temperature of 15.1°C? The melting point of lead is 328°C. The specific heat capacity of lead is 128 J/(kg C°); and its latent heat of fusion is 2.32×104 J/kg.

A granite wall has a thickness of 78.5 cm, an area of 6.15 m by 2.73 m and a thermal conductivity of 2.1 W/(m C°). The temperature on one face of the wall is 3.93°C and 25.4°C on the opposite face. How much heat is transferred in one minute through the granite wall?

A railroad track that is made of individual rails of steel measures 1.36 km in length during a hot day. at 30.9°C. By what length have these increased from a cold day when the temperature is· 10.8°C? The coefficient of volume expansion of steel is 36x10-6/c°.

Who invented 0?

The size of some bacteria and living cells is in the order of _______.

A. centimetre

B. millimetre

C. nanometer

D. micrometer

The size of the largest atom is in the order of ________.

A. centimeter

B. millimeter

C. nanometer

D. micrometer

The mass of a grain of salt is in the order of _______.

A. milligram

B. gram

C. microgram

D. nanogram

Which one is equivalent to the unit ‘joule’?

A. Newton-second

B. Newton-meter

C. Newton-meter per second

D. Newton-meter per second squared

Which one is equivalent to the unit “watt”?

A. Newton-second

B. Newton-meter

C. Newton-meter per second

D. Newton-meter per second squared

 One horsepower is equivalent to how many watts?

A. 550

B. 746

C. 33,000

D. 250

The “kilowatt-hour” is a unit of _______.

A. work

B. energy

C. power

D. work or energy

The English unit “slug” is a unit of _______.

A. mass

B. weight

C. force

D. energy

How is sound intensity measured?

A. In beats

B. In decibels

C. In phons

D. In sones

An electron volt is the energy required by an electron that has been accelerated by a potential difference of how many volts?

A. 1 volt

B. 0.1 volts

C. 10 volts

D. 0.01 volts