Mass Questions and Answers

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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

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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

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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

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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

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