A coffee machine heats water from 20 °C to 90 °C. The power output of the coffee machine is 2.53 kW.
The specific heat capacity of water is 4200 J/kg °C
Calculate the mass of water that the coffee machine can heat in 20 s.

You win the lottery and decide to impress your friends by exhibiting a million-dollar cube of gold. at the time, gold is selling for $ 426.60 per troy ounce, and 1.0000 troy ounce equals 31.1035 g. -how tall would your million-dollar cube be? en cm

Acertain radio station broadcasts radio waves that have a wavelength of 298cm what is its broadcast frequency?

Which best describes what forms in nuclear fission? a. two smaller, more stable nucleib. two larger, less stable nucleic. one smaller, less stable nucleusd. one larger, more stable nucleus