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What is wrong with the statement.” the mass of an astronaut in the moon is 1/6th his mass on earth”.
asked
Aug 30, 2021
in
Physics Form 1
by
anony mous
measurements
mass
0
votes
1
answer
Xcm3 of substance A which has density of 800kg/m3 is mixed with 100cm3 of water with a density of 1000kg/m3. The density of the mixture is 960kg/m3. Determine the value of X
asked
Aug 20, 2021
in
Physics Form 1
by
anony mous
measurement
density
mass
volume
0
votes
1
answer
A triangular prism has cross section ADE as shown. BC//DE, BC=4cm and DE-6cm. If the prism has a length of 10cm and density of 1.32g/cm3. Calculate the mass of the prism of cross-section ABC. Given that the area of trapezium BCDE=36cm2.
asked
Jul 2, 2021
in
Mathematics Form 1
by
anony mous
mass
density and weight
area approximation
0
votes
1
answer
The half-life of Th is 1.9 years. If after 5.7 years the mass of Th was found to be 1.25 g. Determine the initial mass of the radioactive isotope
asked
Jun 22, 2021
in
Chemistry Form 4
by
anony mous
radioactivity
mass
radioisotope
half-life
calculations
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