Answer:
Q= -6900 J
Explanation:
use the formula Q=mC(T_2 - T_1) and sub in givens
Q=mC(T_2 - T_1)
Q= (200 g)(0.444 J/g°C)(22-100)
Q= -6900 J
The negative sign means heat is lost, which agrees with the decrease in temperature
Answer:
A is the answer .(A) is correct
Where is the data for this question? what is the purpose ?
Speed v = initial speed u + acceleration a x time t
v=u+at = 2 + 4*3 = 14 m/s
