Answer:
is a sign of a chemical change
Explanation:
The tablet reacts with the water to form carbon dioxide
Answer:
Nativism was rejected in the late 1600’s and early 1700’s by a group, of philosophers called?
Empiricists Is the Correct Answer!
xXxAnimexXx
Happy Labor day!
Answer:54 kj
Explanation:P1 = P2 = 1000 kPa
1Q2 = 84 kJ
1W2 = P1 (V2 – V1)
= 1000 (0.06 – 0.03) = 30 kJ
1Q2 = 1W2 + 1U2
U2 – U1= 1Q2 – 1W2 = 84 – 30 = 54 kJ
<h2>
Impulse = 4.9 kgm/s</h2>
Explanation:
Impulse is given by change of momentum.
Mass of softball = 0.49 kg
Initial velocity of softball = 13 m/s
Initial momentum = 0.49 x 13 = 6.37 kgm/s
Final velocity of softball = 23 m/s
Final momentum = 0.49 x 23 = 11.27 kgm/s
Change of momentum = Final momentum - Initial momentum
Change of momentum = 11.27 - 6.37
Change of momentum = 4.9 kgm/s
Impulse = Change of momentum
Impulse = 4.9 kgm/s
