A mole is a measurement that can be based on a common enumeration of:
Mass
Weight
Atoms
Volume
which of these is used for radiation therapy?
radium
plutonium
astatine
none of these
0,0,1,2,4,7,,.complete the series.
13,21
12,20
11,19
10,18
a projectile will attain maximum height when thrown at _ degrees with the vertical. choose correct option.
90
45
60
0
if a coin was thrown in a manual tunnel made accross the core of earth. which of the following is true?
it will cross other side of earth into space
it will under go simple harmonic motion
it will stop at the core of the earth
none of the above
chalcanthite is an ore of __ and is __ in colour. fill in the blanks.
calcium,white
lead,red
copper,bright blue
Sulphuric acid is prepared from which of the following?
oleum
pitch blende
blue vitriol
washing soda
A PROJECTILE ATTAINS MAXIMUM RANGE WHEN THROWN AT __ DEGREE WIT THE VERTICAL.
30
A BODY IS THROWN FROM A 40 METER HIGH BUILDING TOWARDS GROUND AT A VELOCITY OF 10m/s.IF g = 10 m/s-s THEN FIND VELOCITY OF BALL WHEN IT STRIKES GROUND.
50 m/s
40 m/s
0 m/s
30 m/s
ANGSTROM IS UNIT OF __.
WEIGHT
MASS
LENGTH
TIME