Answer:
= 6.11 10⁻¹² V
Explanation:
For this exercise we must use the Faraday equation
E = - d Φ / dt
Φ = B . A = B A cos θ
The area of a red blood cell that we can consider circular is
A = π R²
The magnetic field has the form
B = B₀ sin (w t)
Suppose the red blood cell is parallel to the field, the angle is zero and the cos 0º = 1. In blood cell size it is constant, so we can take out the area of the integral.
E = -A dB / dt
E = -A B₀ w cos wt
For maximum electromotive force cos θ = ± 1
= A Bo w
w = 2π f
R = d / 2
= pi (d /2)² B₀ 2π f
= ¼ π² d² B₀ f
Let's calculate
= ¼ π² (7.00 10⁻⁶)² 1.00 10⁻³ 50.5
= 6.11 10⁻¹² V
Answer:
Below!
Explanation:
Since the air pressure under the wing is greater than that above the wing, lift is produced. The shape of the Indy car exhibits the same principle. The shape of the chasis is similar to an upside down airfoil. The air moving under the car moves faster than that above it, creating downforce or negative lift on the car.
Answer:
maximum flow speed is 5.278 cm/s
Explanation:
given data
temperature = 20°C
diameter d = 3.8 cm
density of water ρ = 1 × 10³ kg/m³
to find out
maximum flow speed
solution
we have given steam line flow so it is laminar flow
and for laminar flow we know reynolds number is Re= 2000
so
Re = ............1
here μ is dynamic viscosity = 0.001003 for 20°C for water
put all value in equation 1
Re =
2000 =
solve it we get v
v = 0.0527 m/s
so maximum flow speed is 5.278 cm/s
<em>Hope</em><em> </em><em>this</em><em> </em><em>will</em><em> </em><em>help</em><em> </em><em>u</em><em>.</em><em>.</em><em>:</em><em>)</em>
In swinging pendulum if air friction or air resistance is not present then we can say that sum of its kinetic energy and potential energy will always remains constant
Here it will show that kinetic energy of pendulum will convert into potential energy and vice versa during its to and fro motion
Like here we can say that if the pendulum is released from rest from its one of the extreme position then its kinetic energy will keep on increasing till it will reach at the lowest position while its potential energy is decreasing to the least at the lowest position
Now once it again start rising towards other extreme then again its potential energy start increasing and kinetic energy again start decreasing
At the other extreme position the kinetic energy of the pendulum becomes zero again and potential energy is maximum again
So here since no air friction so we can say that mechanical energy of the pendulum will remain constant at all the time