Ablock of lead has dimensions of 4.50 cm by 5.20 cm by
6.00 cm. the block weighs 1590g. calculate the density
of lead.

Explanation:

Density,

Where m is the mass of the object and v is the volume of the same object

Given the dimensions, we can make them in mm hence 45 mm by 52 mm by 60 mm

Volume=45*52*60= 140400 mm^{3}

Density,

power out to power in less than 100%

another example of kinetic energy would be,

kinetic energy   >     moving energy

answer   >   letter choice (c),   a hammer falling off a table.

hope that !                                         : )