MATH
1=2 2=3 3=???
1
STATE NEWTON'S THIRD LAW
FOR EVERY ACTION THERE IS AN EQUAL AND OPPOSITE REACTION
WHAT IS CH4
METHANE
SCIENTIFIC NAME OF ELEPHANT
ELEPHA MAXIMA
AN OBJECT MOVES FROM A TO B IN 19 SECONDS AND RETURNS TO A IN THE SAME TIME INTERVAL THE DISTANCE BETWEEN A AND B IS 760 M
FIND THE AVERAGE SPEED AND AVERAGE VELOCITY
AVERAGE SPEED = 760+760/19+19=1520/38=
40 M/S
O M/S IS THE AVERAGE VELOCITY
3(X-9)+5(2X-3)=10
FIND X
X=4
WHAT IS THE SI UNIT OF FREQUENCY
Hz (HERTZ)
GIVE AN EXAMPLE FOR DISPLACEMENT REACTION
(EQUATION IS NECESSARY)
COPPER SULPHATE + IRON => IRON SULPHATE + COPPER
CuSO4 +Fe =>FeSO4 +Cu
FOUNDER OF FACEBOOK, APPLE
MARK ZUCKERBURG , STEVE JOBS
THE AREA OF A TRIANGLE IS 240 M2 ITS ALTITUDE IS 10M FIND ITS BASE. IF ONE OF THE SIDE IS 10 M WHAT MUST BE THE MINIMUM LENGTH THE THIRD SIDE
BASE = 48 M
THIRD SIDE IS 59 M
((22)2)4 = 162 X 4x
find x
4
an equal force of magnitude x is applied on cars A,B,C and D. Mass of A>Mass of B.
mass of B < mass of C.
mass of C < Mass of D
Mass of A >Mass of D
which of the following cars will have maximum and minimum acceleration( acceleration is inversly proportional to mass )
A will have minimum
B will have maximum
NAME THE MOST COMMON ELEMENT USED FOR NUCLEAR FISSION
IS IT NATURALLY OCCURING
URANIUM 235
NO, it is obtained from uranium 238
FOUNDER OF ALIBABA COMPANY
JACK MA
4x + 8y +12z= 100 find
x + 2y +3z
25
taking the value of pie as 22/7 on adding how many pie will we get a number without decimal places( an accurate value)
7
A BOY PUSHES A CART WITH A FORCE. BUT THE CART DOES NOT MOVE . HIS FRIEND WHO HAD JUST LEARNED 3 RD LAW SAYS THAT THE CART EXERTED AN EQUAL FORCE AS THAT OF THE BOY AND THESE FORCES CANCELLED EACH OTHER
IS HIS OBSERVATION CORRECT IF NOT WHY DOESN'T THE CART MOVE
OBSERVATION IS WRONG
TWO EQUAL FORCES ACTS ON 2 DIFFERENT BODIES SO CANCELLATION IS NOT POSSIBLE
THE CART DOES NOT MOVE DUE TO IT'S HIGH INERTIA
X,Y,Z ARE THREE GASES
X PRODUCES A POP SOUND ON BEING APPROACHED BY A BURNING MATCHSTICK
Y ON COOLING FORMS DRY ICE
Z ON COOLING BECOMES THE UNIVERSAL SOLVENT
X = HYDROGEN ( IDENTIFIED BY STANDARD HYDROGEN TEST)
Y= CARBON DI OXIDE ( SUBLIMES TO FORM DRY ICE)
Z= WATER VAPOUR
expand TISCO, name one of its significance
TATA IRON AND STEEL COMPANY
IT WAS ESTABLISHED AT JAMSHEDPUR IN THE YEAR 1907
IT SUPPLIED IRON AND STEEL TO INDIAN RAILWAY DURING WW1
a bullet of mass 10 g moving with velocity of 400 m/s gets embedded on on a block of mass 900 g find the velocity of the block after collision
4.4m/s
17x + 17y= 578
find 3(x+y)+ 2(x+y) +(x+y) X 1/17(X+Y)
408
STATE AND OBTAIN THE UNIVERSAL LAW OF GRAVITATION
Newton's law of universal gravitation states that every particle attracts every other particle in the universe with a force which is directly proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
X SCATTERS LIGHT PASSING THROUGH IT AND IS SEPARATED BY CENTRIFUGATION
Y IS OBTAINED FROM X IN LIQUID FORM AFTER CENTRIFUGATION
Z IS OBTAINED IN SOLID FORM FROM X AFTER CENTRIFUGATION
AFTER CENTRIFUGATION WHY DOES Z FLOAT OVER Y (OR) HOW IS Z SEPARATED FROM Y
WHAT IS THE NATURE OF X
X = MILK, Y= SKIMMED MILK, Z = CREAM
Z IS LIGHTER THAN Y
Z IS SEPARATED FROM Y BY THE PROCESS OF DECANTATION
X IS A COLLOID
WHAT IS THE FULL FORM STD AND ISD
SUBSCRIBER TRUNK DIALLING
INTERNATIONAL SUBSCRIBER DIALLING
calculate the force of gravitation between a ball of mass 4 kg earth if mass of earth = 6x1024 radius of earth is 6.4 x 103 and gravitational constant = 6.67 x 10 -11 nm2/kg2
39.2 N