For example if an iron is heated it will get longer and fatter and its density will decrease. This happens because the mass of a rod stays the same but its volume increases....... A few substances behave differently when heated or cooled. Water is one such substance
Answer:
The boiling point of Acetone is 329K (in 3 significant figures)
Explanation:
Boiling point of Acetone = 56°C = 56 + 273K = 329K (in 3 significant figures)
Answer:
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Explanation:
Given:
m = 70 kg, mass
F = 650 N, force
t = 0.8 s, time
Calculate the acceleration.
a = F/m = (650 N)/(70 kg)
= 9.2857 m/s²
Because the initial velocity is zero, the final velocity (after time 0.8 s) is
v = a*t = (9.2857 m/s²)*(0.8 s)
= 7.43 m/s
Answer: 7.43 m/s (nearest hundredth)
A hummingbird can flutter it's wings about 80 times per second.
4,800 divided by 60=80