An automobile engine provides 631 Joules of work to push the pistons. In this process the internal energy changes by -2881 Joules. Calculate q for the engine. This represents the amount of heat that must be carried away by the cooling system.

q = - 2250 Joules

Explanation:

work, w = 631 joules

internal energy ΔU = -2881 joules

q = ?

The relationship between work, internal energy and q is given by the equation;

q + w =  ΔU

Since work is done by the automobile energy, it would have a negative sign, hence;

ΔU = q - w

Inserting the values and solving for q;

ΔU + w = q

q =  -2881 + 631

q = - 2250 Joules

c. is the answer

by love gaming

here is table 2-2:

country

percent of eligible voters that voted

rank

united states

44.9%

138

canada

60.1%

107

costa rica

84.6%

14

hungary

66.9%

82

japan

57.0%

118

egypt

27.7%

159

south africa

85.5%

10

ans is no, the data set cannot be plotted as a single circle graph