Specific heat capacity of steel is 420J/kg 0C and that of water is 4200 J/kg 0C. If 1kg of each are supplied with 4200 J of energy then,
a. Temperature of water will rise by 100C and that of steel will rise by 10C
b. Temperature of water will rise by 10C and that of steel will rise by 100C
c. Temperature of water will rise by 0.80C and that of steel will rise by 120C
d. Temperature of both will rise by 100C.

a.metals can become magnetic if they have many spinning electrons that create magnetic fields.d.only some metals are attracted by magnets; these metals are called ferromagnetic.

d.wrapping an insulated wire around a metal with ferromagnetic properties and applying an electric current.

we're given that v₀ = 0 and a = 5.4 m/s². therefore, since v = at + v₀ for constant acceleration the equation for velocity is

after 28s,

m/s

which i would round to 150 m/s as my final answer

we have been given a quadratic function and we need to restrict the domain such that it becomes a one to one function.

we know that vertex of this quadratic function occurs at (5,2).

further, we know that range of this function is .

if we restrict the domain of this function to either or , it will become one to one function.

let us know find its inverse.

upon interchanging x and y, we get:

let us now solve this function for y.

hence, the inverse function would be if we restrict the domain of original function to and the inverse function would be if we restrict the domain to .