Answer:
149.79
Explanation:
Formula
Joules = m * c * delta (t)
Givens
J = 28242
m = ?
c = 4.19
Δt = 63 - 18 = 45
Solution
28242 = m * 4.19 * 45
28242 = m * 188.55
m = 28242 / 188.55
m = 149.79
Answer:
Number 4 should be physical change since scientists are breaking the water into 2 elements, O₂ and H₂
Answer:
concrete has more mass and it will block more noise than than the wood plus the wood is thiner the thicker the substance is the better u won't hear noise
Explanation:
Answer:
1.05
Explanation:
because the 9 rounds the 4 to a 5