the world record for the hundred meter dash is 9.79. what is the corresponding average speed in m/s and km/h?
a rectungular block has dimension2.9 cm x 3.5cm x 10.0 cm. the mass of the block is 615.0g. what are the volume and density of the block?
a sample contain 33.42g metal pellets is poured into graduted cylinder initially containing 12.7mL of water, causing the water level in the cylinder to rise to 21.6mL. Calculate the density of the metal
one metal object is a cubed with edges of 3.00cm and a mass of 140.4 g.A second metal object is a sphere with radius of 1.42cm and a mass of 61.6g. Are these objects made of the same or different metal, assume that the calculated densities are accurate to +/-1.00 percent
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