[4 marks each
of copper Very long answer questions. Metal Specific seat capacity 910 J/kg °C А A B 380 J/kg °C 470 J/kg °C С The specific heat capacity of substances 'C' is 470 J/kg°C. What does it mean? bifequal heat is given to equal masses of the three substances. Which one will have the lowest temperature? Why? which substance will gain more temperature while heating equal mass of all three bstances with equal amount of heat? nich substances will penetrate to the greatest depth of each with equal mass are put on a wax-slab after heating to 100 °C each? Why? Specitic heat capacities of three different substances are given in the table below. Answer the following questions on the basis of the table.
Suppose that f : rn → rm and that a ∈ k, where k is a connected subset of rn . suppose further that for each x ∈ k there exists a δx > 0 such that f(x) = f(y) for all y ∈ bδx (x). prove that f is constant on k; that is, f(x) = f(a) for all x ∈ k
An electron in an x-ray machine is accelerated through a potential difference of 1.00 × 104 v before it hits the target. what is the kinetic energy of the electron in electron volts?
Suppose that a cylindrical tank 6 meters high with a radius of 2 meters is filled to the rim with water. the tank is buried so that the top of the tank is 1 meter below ground level. the space above the tank is not filled with water. calculate how much work needs to be done by a pump to pump the water out of the tank up to ground level. (the water weighs 9,800 newtons per cubic meter.)