Kiley went 5.7 km/h north and then went 5.8 km/h west. From start to finish, she went 8.1 km/h northwest. Which best describes h
1 answer:
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Answer:
(a). The coefficient of permeability is .
(b). The seepage velocity is 0.0330 cm/s.
(c). The discharge velocity during the test is 0.0187 cm/s.
Explanation:
Given that,
Length = 175 mm
Diameter = 175 mm
Time = 90 sec
Volume= 405 cm³
We need to calculate the discharge
Using formula of discharge
Put the value into the formula
(a). We need to calculate the coefficient of permeability
Using formula of coefficient of permeability
Where, Q=discharge
l = length
A = cross section area
h=constant head causing flow
Put the value into the formula
The coefficient of permeability is .
(c). We need to calculate the discharge velocity during the test
Using formula of discharge velocity
Put the value into the formula
The discharge velocity during the test is 0.0187 cm/s.
(b). We need to calculate the volume of solid in the ample
Using formula of volume
Put the value into the formula
We need to calculate the volume of the soil specimen
Using formula of volume
Put the value into the formula
We need to calculate the volume of the voids
Put the value into the formula
We need to calculate the seepage velocity
Using formula of velocity
Put the value into the formula
The seepage velocity is 0.0330 cm/s.
Hence, (a). The coefficient of permeability is .
(b). The seepage velocity is 0.0330 cm/s.
(c). The discharge velocity during the test is 0.0187 cm/s.
Answer:
The acceleration of a point on the wheel is 11.43 m/s² acting radially inward.
Explanation:
The centripetal acceleration acts on a body when it is performing a circular motion.
Here, a point on the bicycle is performing circular motion as the rotation of the wheel produces a circular motion.
The centripetal acceleration of a point moving with a velocity and at a distance of
from the axis of rotation is given as:
Here,
∴
Therefore, the acceleration of a point on the wheel is 11.43 m/s² acting radially inward.