Answer:
models are only used by scientists
Answer: then you’re not sick d u h
Explanation:
A hurricane becomes more powerful by evaporating water from oceans
Answer:
The time rate of change in air density during expiration is 0.01003kg/m³-s
Explanation:
Given that,
Lung total capacity V = 6000mL = 6 × 10⁻³m³
Air density p = 1.225kg/m³
diameter of the trachea is 18mm = 0.018m
Velocity v = 20cm/s = 0.20m/s
dv /dt = -100mL/s (volume rate decrease)
= 10⁻⁴m³/s
Area for trachea =

0 - p × Area for trachea =



⇒

ds/dt = 0.01003kg/m³-s
Thus, the time rate of change in air density during expiration is 0.01003kg/m³-s
Answer:
5.69755 rad/s²
Explanation:
r = Radius = 1.3 m
v = Velocity of the hammer = 22 m/s
n = Number of revolutions = 4
Angular displacement

= Initial angular speed = 0
Final angular speed

Angular acceleration

Angular acceleration is given by 5.69755 rad/s²