Answer:
Explanation: Flow rate is how much volume is going through in an one second there for
Flow rate = Velocity × Cross sectional Area
Here cros sectional Area is = π r²
= π × 20²
= 1256 m²
Q = V ×A
8×10³ = V × 1256
V = 6.4 m/s
Answer:
speed of molecule ∝ 1/mass of molecule.
Explanation:
The velocities of the molecules depend on their masses. That's because if the molecules are large in size, their velocity is slower. Therefore their velocity is quicker when their size is small, since the molecules can move faster.
Therefore , it can be written as
speed of molecule ∝ 1/mass of molecule.
There is no image!?...was there meant to be something attached?
Answer:
0.00264C
Explanation:
Using the Columbs law formula
F = kq1q2/r²
F is the force of attraction
q1 and q2 are the charges
r is the distance between the charges.
k is the Coulomb's cinsrsnty
Given F = 19N, q1 = -0.0005C
r = 25m q2 = ?
Substituting
19 = 9×10^9×-0.0005q2/25²
11875 = -4,500,000q2
q2 = 11,875/-4,500,000
q2 = - 0.0264C
Magnitude of the second charge is 0.00264C
I am pretty sure about these answers.Thermal goes in the 4th blank.
Mechanical goes in the 2nd blank.
Electrical goes in the 3rd blank.
I think chemical goes in the 1st blank and light goes in the 5th blank
Hope this helps