How much heat is needed to raise the temperature of 5g of water by 19oc?

The water's specific heat is C=4.184 J g^-1 C^-1.

The water's specific heat tells you that you need 4.184 J of energy in the form of heat in order to increase the temperature of 1 g of water by 1∘C .

ΔT , is the change in temperature, will be equal to

current flows in a wire

  distance on the y-axis and time on the x-axis.

explanation:

the instantaneous velocity = change in position/time taken

the slope of the graph should give instantaneous velocity.

  slope of a graph = change in value of y -axis / change in values of x -axis

  comparing both the equations

    change in value of y -axis = change in position

  change in values of x -axis = time taken

so position values should be on the y axis and time values should be on the x axis.

distance on the y-axis and time on the x-axis.