7. An ore sample weighing 8.60 kg is found to contain 1.40 kg of copper. a). Calculate the percent copper in the ore. Percent - Part xloo
Whole
P = 1.400g copper = x 100
16.3
Problem-solving:
% Cu
ore
8. 60kg
b) Write the percent value from a) into two conversion factors.
% value

16:3_%Cu
(from the answer a)
Two conversion factors
16.3 copper
8.60 ore
8.60ore
16.3 copper
or
c) How many kg of copper are there in 125 kg of ore? Solve this by factor-label method
using a conversion factor in part b).

How do I set this up in a conversion factor?

(b) which contains higher levels of vitamin b, oranges or spinach?

explanation:

you can eliminate a, c, and d because they are questions based on opinions.

answer: semi-infinite solid initially at a uniform temperature of 400 ◦c is cooled at its surface by convection. the cooling fluid at a constant temperature of 200 ◦c has a convective coefficient (ha) of 250 w/m2.k. the physical properties of the solid: k = 20 w/m.k and α = 4 * 10-5  m2/s. using δx = 0.04 m and δt = 10 s. write the finite difference equations describing the transient heat transfer of the first five δx and the temperature profile after 30 s.