please find the answers with the SOLUTION .. if there is no solution I will not mark as brainliest if there is a solution to all these problems I will mark as brainliest
Answers
Answer:
Explanation:
(2)DIMENSION OF THE HALL=10 M*7 M*5 M
THEREFORE VOLUME OF THE HALL=10*7*5
=350 M³
DENSITY OF AIR=1.11 KG M^-3
DENSITY= MASS / VOLUME [ SINCE THE AIR SPREADS EVENLY
THROUGHOUT THE ROOM]
1.11 =MASS/350
MASS= 1.11*350
MASS=388.5 KG.
(3)DENSITY OF ALUMINIUM= 2.7 G CM^-3
DENSITY = 2.7*[G/CM³] 1 G = 10^-3 KG
DENSITY =2.7*[10^-3/(10^-2)³] 1 CM =10^-2 M
DENSITY=2.7*[ 10^-3*10^6]
DENSITY=2.7*10³
DENSITY= 2700 KG M^-3
(4)DENSITY OF ALCOHOL= 600 KG/ M³
DENSITY=600* [1000G/(10²)³] 1 KG= 1000 G
DENSITY=600*[1000/10^6] 1 M = 100 CM
DENSITY=600*10^-3
DENSITY= 0.60 G/ CM³
(5)MASS OF ZINC= 438.9 G
VOLUME OF ZINC= 86 CM³
DENSITY= MASS/ VOLUME
DENSITY=438.9/86
DENSITY= 5.10 G/CM³
(6)MASS = 150 G
VOLUME = 200 CM³
{a} IN C.G.S. UNIT MEANS IN G/CM³
DENSITY= MASS/ VOLUME
DENSITY=150/200
DENSITY= 0.75 G/CM³
{b} IN SI UNIT MEANS IN KG/M³
DENSITY= 0.75*[10^-3/(10^-2)³]
DENSITY=0.75*10^3
DENSITY=750 KG/M³
(7) MASS = 6000 KG= 6000*1000G
= 6*10^6 G
DENSITY= 0.8 G /CM³
VOLUME = MASS / DENSITY
VOLUME =75*10^5 CM³
VOLUME= 75*10^5*(10^-2)³
VOLUME = 75*10^5*10^-6
VOLUME = 75*10^-1= 7.5 M³
(8)MASS = 72 G
VOLUME = 24 ML= 24 CM³ [ NOTE: 1 ML= 1 CM³]
DENSITY = MASS/ VOLUME
DENSITY= 72/24
DENSITY= 3 G/ CM³.
HOPE THIS HELPS.