In which situation is the speed of the car constant while its velocity is changing? A)
The car travels down a straight track at 30 m
s
m
B)
The car travels around a circular track at 30
S
The car begins from rest and accelerates to 20
S
D)
m
The car begins traveling at 30
m
and slows to 15
S
En

m=9

step-by-step explanation:

a 20-cm-long, cylindrical graphite (pure carbon) rod is inserted into an oxidizing atmosphere at 1145 k and 1.013 x 105 pa pressure. the oxidizing process is limited by the diffu- sion of oxygen counterflow to the carbon monoxide that is formed on the cylindrical surface.