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Wd=mgh
=1×5×10=50 is the SOLUTION

Q:

A train of length 110 meter is running at a speed of 60 kmph. In what time, it will pass a MAN who is running at 6 kmph in the DIRECTION opposite to that in which the train is going?

A) 10 B) 8

C) 6 D) 4

Explanation:

Distance = 110 m

Relative speed = 60 + 6 = 66 kmph (Since both the train and the man are in moving in opposite direction)

= (66*5/18) m/sec = 55/3 m/sec

Time taken to pass the man = (100*3/55) = 6 s

ATMOSPHERIC pressure decreases with INCREASING height
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Depth is towards the earth core, altitude is the HEIGHT and latitude REFRESH to the imaginary lines LIKE the TROPIC of cancer and tropic of Capricorn

Image result for what is the law of conservation of momentum

One of the most powerful laws in PHYSICS is the law of momentum conservation. ... For a collision occurring between object 1 and object 2 in an isolated system, the TOTAL momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

A stone THROWN vertically upwards from the top of a tower ... an initial VELOCITY u reaches the GROUND with a velocity 3u the ... Can u xplain dis DETAILED..with all d values.

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The sensitivity of a bubble tube can be increase by increasing the diameter of the bubble tube. With the RISE in TEMPERATURE sensitivity of a bubble tube decreases, because with rise in temperature the liquid expands and bubble gets SMALLER. ... Sensitivity of a bubble tube is designated by RADIUS of LEVEL tube.

Compared to other metals lead is a POOR conductor of heat. HOWEVER, compared to nonmetals it has quite higher thermal conductivity.

Conductivity of Lead is = 35.3 W m-1 K-1

therefore lead is a bad conductor of heat.:-)

The ANSWER will be :1

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The second law is about how one object RESPONDS to the forces ACTING ON it. ... Or The net FORCE required to accelerate a Body (of mass 'm') to an acceleration 'a', would be 'ma'. Whereas in the third law Newton was talking about interaction between two bodies. It says that every Action has an equal and OPPOSITE REACTION.

A ray of light of wavelength 5000 armstrong sufferr refraction from air to glass find WAVE LENGTH of light in glass · Answer · PHYSICS; 13 PTS ...

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The enlightening image below is of a LIGHTNING STRIKE slowed down at 10,000 FRAMES per second. It can be seen that the most intense FLASH produced from the ..

Pressure=force/area
therefore force=pressurexforce
=0.5x500
=250 N

Frictional force is the force makes a ROLLING BALL STOPS on its own

Application of refraction of light is a tool which helps us in understanding the basic concepts about the refraction of light and its application. First of all let us understand the basics of refraction of light and then we will study about application of refraction of light.

Generally refraction of light occurs when the waves travel s from one medium to another medium, with some refractive index and it generally enters other medium at oblique angle. There are various phenomenon’s associated with the refraction. Refraction of light has a major scope in case of optics and in the field of technology. For example, lens uses the basics of refraction of light to form an image of an object for various purposes, such as magnification. The other example is prism which also uses refraction to form a spectrum or band of colors from incident ray of light. In optical illusion and mirage, refraction generally plays a big role.

Various scientific things have been explained with the help of refraction. Day to day phenomenon’s are also explained with the help of refraction. One example which we are most familiar is ‘Twinkling of stars’. This phenomenon is explained in this way. The atmosphere which is blanket of earth actually consists of various layers of varying densities. It is because of change in temperature and pressure. The phenomenon is when the ray o f light enters into the layers of continuously increasing densities they are being refracted because of change in medium. In this complete process, ray of light follows curve path and hence it reaches to us. But because of the wind and currents, the density of the layer continuously INCREASES and hence in turn the density of each layer goes on changing from layer to layer. And because of this at very small interval of time, the position of the image of start keeps on changing, and hence it ultimately PRODUCES the TWINKLE effect. This is all based on the concepts of refraction.

The same principle can be used to explain the apparent sunrise or sunset. The basic concepts of refraction are used to describe the complete process. The other applications of refraction are as follows:

1) Spear fishing, in which spear fisherman use a smart trick to catch the prey. The spear fisherman generally aims at a point below where the fish seems to be. This is because light actually changes its direction from one medium to another of different densities. This change is basically known as refraction.

2) Bending of stick in water. In water, a stick ENGROSSED in water generally appears bent and small when viewed at an angle from above. This is also because the rays of light actually travel from water medium to air medium and hence in bend away from the normal at the surface.

3) A coin appears raised in water. The same explanation exists.

From above discussion we have seen that refraction of light has been used to understand the scientific facts in almost all fields. This is all about application of refraction of light

When you PRESSING a BALL and spong

What is the QUESTION explainok

9.8 m/s as GRAVITY VELOCITY or ACCELERATION DUE to gravity

Equation of POSITION time relationship.
distance travelled. = AREA of trapezium.
s = 1/2 OC ( O A + B c) .
s = 1/2 t ( u+v ) from equation (1). ( v=u+at)
s = 1/2 t ( u+u + at )
s = 1/2 t ( 2U+ at )
s = 1/2× 2 ut + 1/2 at^2
s = ut+ 1/2at^2
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Power=work/time

so, 12×10⁴= work/300 (P=120000 J, t=5min=60×5s)

work=36×10⁶

and POTENTIAL (V)=work/q and q=It, q=1500

V=36×10⁶/1500

V=24×10³ VOLT ANS.

Coolidge X-ray tube, from around 1917. The heated cathode is on the left, and the anode is right.

An X-ray tube is a vacuum tube that converts electrical input power into X-rays.[1] X-ray TUBES evolved from experimental Crookes tubes with which X-rays were first discovered on NOVEMBER 8, 1895, by the German physicist Wilhelm Conrad Röntgen. The availability of this controllable source of X-rays created the field of radiography, the imaging of partly opaque OBJECTS with penetrating radiation. In contrast to other sources of ionizing radiation, X-rays are only produced as long as the X-ray tube is energized. X-ray tubes are also used in CT scanners, airport luggage scanners, X-ray crystallography, material and structure analysis, and for industrial inspection.

I don't know that the answer is wrong or right

HEY!

_______________

a) TIME taken to complete 1 rounds = 20 s

1 MINUTE 10 seconds = 70 seconds

Number of rounds that can be completed in 70 seconds = 70/20 = 3.5 rounds

Distance travelled = circumference of circle = 2 pie r

Diameter= 200
Radius= 100

Distance travelled = 2 *3.14*100*3.5 = 2198

Displacement = Shortest distance travelled

3 rounds = Displacement = 0 , as INITIAL and final point is same.

Now, 0.5 = half round = diameter of ground = 200 m

Thus, displacement = 200 m.

The motor CAR travelling at 70 KM/hr will cover 70*2 = 140 km in 2 hours.

In the next 2 hours the speed is 80 km/hr. So the car covers 80*2 = 160 km in the next 2 hours. Thus the car has covered 300 km in 4 hours.

The remaining distance is 345–300 = 45 km. This distance is covered at a speed of 180 km/hr. The time taken to cover 45 km at 180 km/hr = 45/180 = 0.25 hr.

So the ENTIRE journey of 345 km is covered in 4.25 hours.

GIVEN: H=12u^2/g

INITIAL vel.=u

using FORMULA v^2=u^2-2as

v^2=u^2+2*g*12u^2/g (since a= -g and s=h)

so v=5u ans.

You can SIMPLY DIVIDE the both NUMBER

Descrihe d QUESTION BREIFLY...!!

All the PLANET MOVE AROUND the sun in CIRCULAR PATH

Yes it is possible .....
consider a ball THROWN upward and at a point it has has zero velocity at highest height at that point t it has a constantat DOWNWARD acceleration by gravity but has zero velocity .

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