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87.Total kinetic energy in joules of molecules in 4 gram of Methane at 27^° c

118.A cylindrical tube open at both ends as a fundamental frequency ,f ,in air . The tube is dipped vertically in water so that half of it is in water. the fundamental frequency of air column is now (1) f (2)f/2 (3)3f/4 (4)2f

What name is given to the celestial body which revolves around a planet?

nta rod of weight w is supported by two parallel knife edges A and B and is in equillibrium in a horizontal position. the knives are at a distance d from each other . the centre of mass of the rod is at distance x from A. the normal reaction on A is??n

If the moon is partially in the umbra region of the earth's shadow, then ___ eclipse occurs.

How to prevent corrosion

The picture below shows the change in two states of matter. Identify the process 'X', by which gas is converted to liquid.

How to calculate the resultant force if one force is applied from left and another is applied from bottom of an object ? Please explain with example.

1. the value of 120J if that unit has 10 g ,100 cm, 1000 s as base units?2 .A wave function expressing displacement(y) as a function of its position (x) and time (t) is given by y= Plog(Qx+(e)^rt , then which has a differnt dimension and how? a)YR b)PR c)P/Q d)Qr

Explain me what is velocity of sound and also give me the define of velocity and what is difference between velocity and speed

1 gf cm = N m = dyne cm

Explain the friction exerted by fluids? (40 to 50 words) in points with examples

The effective span of the given beam is______ mm. 4730

An alpha particle is accelerate d from rest through a potential difference of 500V. It's final kinetic energy is

Two wires of same diameter of the same material having the length l and 2l. If the force F is applied on each, the ratio of the work done in the two wires will be

The absolute refractive index of the diamond is 2.1. What is the velocity of light in a diamond?

What is the temperature range of Clinical and Laboratory Thermometer ?

Charges q,-q and q are placed at the points (-1,1,1),(1,-1,1) and (1,1,-1) respectively. What will be the x component of the electric field at the origin?

Explain about the electromagnetic force and electromagnetic radiation?

Q 10/15 If force F = (-57+5j+4k) N begins to act on a 2kg particle moving with an initial speed of 4 m/s. Find speedof the particle when displacement vector from intial pointbecomes d (27+2j+7k)m22m/s44m/s44 m/s22 m/s

Which of the following effects of current makes the electric bell work?

Which of the following layers of the Earth has the highest temperature?

IF 50 JOULE OF WORK MUST BE DONE TO MOVE AN ELECTRIC CHARGE OF 2C FROM A POINT' WHERE POTENTIAL IS -10 V ANOTHER POINT WHERE POTENTIAL IS V VOLT .THEN THE VALUE OF V IS.

105.Two persons manage to push a motorcar of mass 1200kg at uniform velocity along a level road. The same motorcar can be pushed by three persons to produce an acceleration of 0.2 m/s. With what force does each person push the motorcar? (Assume that all persons push

0.0038 kHz = ____ Hz

Question 5 (a)In the following situations identify the agent exerting the force and the object on which it acts. State the effect of the force in each case.(a) Squeezing a piece of lemon between the fingers to extract its juice.

Question 18Identify the lightning conductor and the copper plate in the figure.

cylinder placed on a rough inclined surface with theta inclination minimum value of coefficient of static friction so that cylinder undergoes pure rolling

Name the type of energy (Kinetic or potential) possesed by the following : (a) A moving cricket ball. (b) A stone at rest on the top of a building (c) A compressed spring. (d) A moving bus. (e) A bullet fired from a gun. (f) Water flowing in a river. (g) A stretched rubber band.

The density of a piece of clay is 1.8 in C.G.S system of units. The corresponding value in S.l unit system is(1) 18000(3) 180(2) 1800(4) 18

The excess pressure inside a soap bubble is equal to an oil column of height 3mm .the total surface area of the soap bubble in contact with air will be, (given density of oil =0.9 g/cm³ surface tension of soap solution =0.03 N/m and g= 10 ms²

There is a non conducting sphere of radius R which is uniformly charged if smaller concentric sphere of radius r a point 2 is removed the electric field inside the cavity

The passage of electric current through a solution might cause

A car moves along the periphery of a square field of side 10m. He completes traveling one side in 40s. What will be the magnitude of distance and displacement at the end of 2min and 20 seconds?

Winds are caused due to (1) Gravitational pull of Moon and Sun on Earth (2) Rotation of Earth (3) Uneven heating of atmosphere (4) Irregularities of ground surface

Question 9A rocket has been fired upwards to launch a satellite in its orbit. Name the two forces acting on the rocket immediately after leaving the launching pad.

Ba body weighs 144 Newton at the surface of the earth when it take to the height of HG equal to 3R where r is the radius o

In CGS system the magnitude ofvthe force is 100dyne IN another system where the fundamental physical quantites are kg meter and minutes the magnitude of the force i

Which of the following correctly represents the hearing path in humans?

Distance time graph of a body is straight line making an angle of 30 degree with distance axis. What is its speed?

Which planet rotates from east to west about sun?

A body has a displacement of 10 meters with an average velocity of 5 m/s. Time taken is ___ seconds.

Question 3 (a)Fill in the blanks in the following statements:(a) To draw water from a well we have to ___ at the rope.

What is cataract? How can the vision of a person having cataract be stored?

what does indicates smooth and rough surfaces in the problems of friction and sliding block etc

Two blocks P and Q of different metals having their mass in the ratio 2:1 is given the same amount of heat. Their temperature rise by the same amount. Compare their specific heat capacities.

1000 kPa = ___atm