2. A hot water tank contains 160kg of cold water at 20 degrees celsius. Calculate the quantity of heat energy required to raise the temperature of water to 60 degrees celsius. [4marks]​

t.                 w               e                 n                   t                 y                 c             h               a           r           a               c                 t             e             r             s        

heats surface water up

i had this question and the answer was 3.15 miles.

martina travels from school to her mom's office. from there, she walks to school. after school, she walks to the library and then to a friends house before finally ending back at home. find martina's total distance traveled.

a) 0 miles  

b) 0.4 miles  

c) 1 mile  

d) 3.15 miles

i need with 1.3.2 investigate cycling o2 and co2 apex

we need to see it