4 po 2. The specific heat capacity of Aluminium is 880J/Kg. C, calculate the
amount of energy required to increase the temperature by 40.C of an
aluminium block of mass a. 250g b. 1.5Kg [4]

Electric charge is uniformly distributed inside a nonconducting sphere of radius 0.30 m. the electric field at a point p, which is 0.50 m from the center of the sphere, is 15,000 n/c and is directed radially outward. what is the maximum magnitude of the electric field due to this sphere

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

Arigid tank is divided into two equal parts by a partition. one part of the tank contains 3 kg of compressed liquid water at 400 kpa and 60°c while the other part is evacuated. the partition is now removed, and the water expands to fill the entire tank. determine the entropy change of water during this process, if the final pressure in the tank is 40 kpa. use steam tables.