How much heat energy is required to raise the temperature of 5 kilograms of coal from 20°c to 220°c?
a. 1,314,718 j
b. 4,187,000 j
c. 314 j
d. 6,573 j

Specific heat of coal is 1.3 kj/kg k 

1.3 kj/kg k x 5 kg x 200c = 1300 kj (c) 

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

No because a circle or pie graph usually shows percentages you'd need a line graph