According to the following solubility graph, which compound is the most soluble at 10 degrees
Celsius?
KNO,
KG
Solubility (g of salt in 100 g H,0)
Pb(NO),
KCIO,
0
10
20
Celsoy
30 40 50 60 70 80 90 100
Temperature (°C)
NaNO3
ONCI
O Pb(NO3)2
O CaCl2

where's the diagram?

you need to stop taking that class

answer;

18.5 seconds

explanation;

velocity is distance covered per unit time; it is given by displacement divided by time.

thus; time = displacement/velocity

total time = total displacement/velocity

total distance = 5000 meters south

total time = 5000/4.5

                  = 1111.11 seconds

but; 1 minute = 60 sec

thus; 1111.11 /60

                = 18.51 seconds

thus; the time taken is 18.5 seconds