Answer:
∴The air cannot be made to flow in with the given pump at the given conditions.
Explanation:
Given:
- gauge pressure of bicycle tyre,
- length of cylinder of the pump,
- area of the the cylinder of the pump,
- we have the density of air at STP,
The piston must be pushed more than the pressure inside the tyre:
∴The air cannot be made to flow in with the given pump at the given conditions.
For the answer tot he questions above, I know this one.
The answers are
<span>-sets 2-3 hours after the sun sets - waxing crescent
-occurs about 3 days before the new moon - waning crescent
-occurs 14 days after the new moon - full moon
-rises at about the time the sun sets - full moon
-visible due south at midnight - full moon
-visible near eastern horizon just before sunrise waning crescent
-visible near western horizon about an hour after sunset waxing crescent</span>
Answer:
V = 3.5 x 10⁻⁶ m³/s = 3.5 cm³/s
Explanation:
The volume flow rate of the blood in the artery can be given by the following formula:
where,
V = Volume flow rate = ?
A = cross-sectional area of artery = πd²/4 = π(0.004 m)²/4 = 1.26 x 10⁻⁵ m²
v = velcoity = 0.28 m/s
Therefore,
<u>V = 3.5 x 10⁻⁶ m³/s = 3.5 cm³/s</u>
2.55 meters, 2550 millimeters, 0.0026 kilometers
Answer:
a) F =
b) attached below
c) 0.037 m/s
Explanation:
<u>a) Determine the magnetic "drag" force acting at the moment </u>
speed = v
first step: determine current in the loop
I = ----- ( 1 )
given that the current will induce force on the three sides of the loop found in the magnetic field
forces on vertical sides = + opposite
we will cancel out
hence equation 1 becomes
F = ( according to Lenz law we can say that the direction of force is upwards and this force will slow down the decrease in flux )
<u>b) Determine the formula for Vt</u>
attached below
<u>c) Find Vt </u>
given :
B = 0.80 T
density of copper = 8.9 * 10^3 kg/m^3
resistivity of copper = 1.68 * 10^-8 Ωm
∴ Vt = 16 ( 8.9 * 10^3 kg/m^3 ) ( 1.68 * 10^-8 Ωm ) ( 9.8 m/s^2 ) / ( 0.08 T)^2
= 0.037 m/s