Answer:
The road bank angle is 16.38⁰.
Explanation:
radius of curvature of the road, r = 50 m
allowable speed of car on the road, v = 12 m/s
The bank angle is calculated as;
where;
θ is the road bank angle
g is acceleration due to gravity = 9.8 m/s²
Therefore, the road bank angle is 16.38⁰.
Answer:
72 minutes
Explanation:
The combined rate of the two machines is 250 bolts/hr:
(100 bolts/hr) + (150 bolts/hr) = 250 bolts/hr
The number of bolts is equal to the rate multiplied by time, therefore an expression for time can be found:
Bolts = (rate)(time) >> Time = (bolts)/(rate)
The time necessary to make 300 bolts is:
Time = (bolts)/(rate)
Times = (300 bolts) / (250 bolts/hr) = 1.2 hr
The time in hours is converted to time in minutes as follows:
(1.2 hr) (60 min/hr) = 72 minutes
90+66=156
156/2=78
Reply:78kilometers in 2 hours.
According to wiki. Chemical energy is basically potential energy. The chemical energy builds up (which is called potential energy).
Examples would be batteries or a generator.
