Answer:

Explanation:
Given that nozzle discharge at constant flow rate.
Volume of tank is V
Lets constant flow rate =Q
We know that

To find the time t,at a volume V
V = Q .t

Where t is the filling time of volume .
dV/dt is the volume floe rate .
Q is the discharge.
Answer:
128 N
Explanation:
Power can be defined as

<em>F</em> is the force and <em>v</em> is the velocity.

According to the question, <em>P</em> = 5.15 hp = 5.15 × 746 W.
<em>v</em> = 30 m/s

Since most of the power is used to compensate for the energy transformations due to friction forces, the total frictional is 128 N
Answer:
The gain,loss, or sharing of electrons occurs in every chemical bond.
Explanation:
Should electrons be lost by one particle, and gained by another particle, the now charged particles can be chemically bound by an ionic bond.
Should a pair of electrons form a region of high electron density between two positively charged atomic nuclei, a bond can occur in that mutual attraction of the positively charged nuclei towards the region of high electron density operates. This is a long-winded description of a covalent bond.
<h2>
Angular acceleration is 80 rad/s²
</h2><h2>
Number of revolutions undergone is 1.02</h2>
Explanation:
We have equation of motion v = u + at
Initial angular velocity, u = 0 rad/s
Final angular velocity, v = 32 rad/s
Time, t = 0.40 s
Substituting
v = u + at
32 = 0 + a x 0.40
a = 80 rad/s²
Angular acceleration is 80 rad/s²
We have equation of motion s = ut + 0.5 at²
Initial angular velocity, u = 0 rad/s
Angular acceleration, a = 80 rad/s²
Time, t = 0.4 s
Substituting
s = ut + 0.5 at²
s = 0 x 0.4 + 0.5 x 80 x 0.4²
s = 6.4 rad
Angular displacement = 6.4 rad

Number of revolutions undergone is 1.02
Answer:
To decide where the balls land, we need to determine how long the balls are in the air. Both balls will take 2 seconds to hit the ground.
Explanation:
1) Time played forward : gravity & drag forces are in opposite directions so it takes a longer time to reach the ground. 2) Time played backward : gravity & drag forces are in the same direction so it takes a shorter time to reach the ground.