10 A 50 g copper mass is heated by placing it in a boiling water at 100°C. It is then placed in a 35g of copper calorimeter containing 120 g of water at 20°C. The final temperature of
the mass and water is 23°C. what is the specific heat capacity of copper? (Take specific
heat capacity of water = 4200 JKg K-) Ans:404 JKg 'K-​

An electric clothes dryer has a resistance of 8 ohms. it draws 30 a of current. what is the voltage, in volts, of the wall outlet that it is plugged into?

1.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the mass defect of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 2.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev 3.)the isotope cobalt-60 has a nuclear mass of 59.933820 u calculate the binding energy per nucleon of cobalt-60 using the following information. mass of proton: 1.007825 u mass of neutron: 1.008665 u 1 u = 931.5 mev

What is the weight of a feather (mass = 0.0001 kg) that floats through earth's and the moon's atmospheres?