Erosion is the process when the physical world breaks apart rocks by water air and movement
C. you need to double your speed.
since there is gravity and the more mass the more gravity pulls it to the core of the earth; cars are heavy.
Answer:
t = 5.55 mm
Explanation:
given,
Gauge pressure (P)=640 kpa
Allowable normal stress =150 Mpa.
Inner diameter of tank =2.6 m.
Minimum thickness of wall. = ?
In case of closed cylinders there are two cases.
one is Circumferential stress and another one is longitudinal stress.
According to circumferential stress
Where
p=pressure, d=diameter, t= thickness,
by substituting all values we get,
t = 5.55 mm
minimum thickness of the wall is equal to t = 5.55 mm
Answer:I believe it is D I might be wrong
Explanation:
Carbon-14 is a naturally occurring carbon isotope.
Carbon-14 has a known half-life.
Carbon-14 is present in all living organisms.