Answer:
166.67 N
Explanation:
Given:
Mass flow rate = 50 kg/min = 50 kg / 60 seconds = 0.833 kg/s
Initial velocity = 200 m/s
after striking the normal board the water will flow in the normal direction, thus the final velocity in the direction of the initial flow will be zero
therefore,
Force = (change in momentum)
or
Force = Initial momentum - final momentum
or
Force = 0.833 × 200 - 0.833 × 0
or
Force = 166.67 N
Answer:
0.89 cos (st +116.57°v)
Explanation:
Please kindly check attachment for the step by step solution of the given problem.
Answer:
We conclude that the approximate series solution (with only one eigein value) provides systematically high results but by less than 1.5%, for the biot number range from 0.11 to 10. See attached image.
Explanation:
Answer:
a. 9947 m
b. 99476 times
c. 2*10^11 molecules
Explanation:
a) To find the mean free path of the air molecules you use the following formula:

R: ideal gas constant = 8.3144 Pam^3/mol K
P: pressure = 1.5*10^{-6} Pa
T: temperature = 300K
N_A: Avogadros' constant = 2.022*10^{23}molecules/mol
d: diameter of the particle = 0.25nm=0.25*10^-9m
By replacing all these values you obtain:

b) If we assume that the molecule, at the average, is at the center of the chamber, the times the molecule will collide is:

c) By using the equation of the ideal gases you obtain:

Answer:
All the detailed steps are mentioned in pictures.
Explanation:
See attached pictures.