1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Debora [2.8K]
3 years ago
7

Scientific work is currently underway to determine whether weak oscillating magnetic fields can affect human health. For example

, one study found that drivers of trains had a higher incidence of blood cancer than other railway workers, possibly due to long exposure to mechanical devices in the train engine cab. Consider a magnetic field of magnitude 1.00 times 10^-3 T oscillating sinusoidal at 50.5 Hz. If the diameter of a red blood cell is 7.00 mu m, determine the maximum emf that can be generated around the perimeter of a cell in this field. _____________ V
Physics
1 answer:
frosja888 [35]3 years ago
3 0

Answer:

E_{max}= 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

    E_{max} = A Bo w

    w = 2π f

    R = d / 2

    E_{max} = pi (d /2)² B₀ 2π f

    E_{max} = ¼ π² d² B₀ f

Let's calculate

    E_{max} = ¼ π² (7.00 10⁻⁶)² 1.00 10⁻³ 50.5

   E_{max}= 6.11 10⁻¹² V

You might be interested in
Lighting from the sun travels through space to earths atmosphere.
Lady bird [3.3K]
Yes it does do all that
3 0
2 years ago
The actual depth of a shallow pool 1.00 m deep is not the same as the apparent depth seen when you look straight down at the poo
DedPeter [7]

Answer:

d' = 75.1 cm

Explanation:

It is given that,

The actual depth of a shallow pool is, d = 1 m

We need to find the apparent depth of the water in the pool. Let it is equal to d'.

We know that the refractive index is also defined as the ratio of real depth to the apparent depth. Let the refractive index of water is 1.33. So,

n=\dfrac{d}{d'}\\\\d'=\dfrac{d}{n}\\\\d'=\dfrac{1\ m}{1.33}\\\\d'=0.751\ m

or

d' = 75.1 cm

So, the apparent depth is 75.1 cm.

4 0
3 years ago
In a motor, the combined effect of electric currents and magnetic forces turn electrical energy into which of the following?
lord [1]
A motor is built to use all those things and produce mechanical energy.
6 0
2 years ago
Read 2 more answers
When measuring espresso for a drink, which instrument would give the<br> greatest precision?
Gemiola [76]

How many mL is an espresso?

One shot of espresso is generally about 30–50 ml (1–1.75 oz), and contains about 63 mg of caffeine (3). Important point: The “golden ratio” for espresso is this: a single shot is 30 to 44 mL (1 to 1.5 ounces) of water and 7 grams of coffee

5 0
2 years ago
Raw sewage is raised vertically by 5.49m in the amountof
uranmaximum [27]

Answer:

          P = 1235.7646 W

Explanation:

Given data:

height of raised sewage = 5.49 m

rate of sewage =1.89*10^6 lt/day

density of sewage = 1.050 kg/m^3

power is written as

P = \frac{work}{time}

work  = m g h

m - mass = ( \rho V)

  h -height

mass lifted per day = ( 1.89*10^6)(1.050)

                              = 1984500 kg

time = 24 hours* 3600 seconds per hour

powerP = \frac{( 1984500)(9.8)( 5.49)}{(24)(3600)}

          P = 1235.7646 W

5 0
3 years ago
Other questions:
  • Calculate the density of a sample of gas with a mass of 30g and volume of 7500 cm3
    11·1 answer
  • Which type of energy is emitted from earth to the atmosphere? *?
    7·1 answer
  • Sandra's is riding a bicycle at 10.0 meters/second. She slows down to 2.0 meters/second in 10 seconds her acceleration is
    11·1 answer
  • Directions: Select the choice that best fits each statement. The following question(s) refer to the following concepts related t
    5·2 answers
  • The sun's apparent motion across the sky from East to West daily is due to the A) rotation of the sun. B) rotation of the earth.
    8·2 answers
  • A meteorologist describes a tropical storm as traveling northwest at 50 mi/h. which attribute of the storm’s motion has the mete
    8·1 answer
  • When the power in their house unexpectedly went off, Radhika's mother said that she would check and replace the fuse. What exact
    13·1 answer
  • A marble and a basketball are rolling toward you at the same velocity. If the same amount of force is used to stop both objects,
    12·1 answer
  • 1. As a group, write down two challenges in terms of sustainability you would face when developing a sustainable food supply for
    6·1 answer
  • Briefly explain why experiments having faulty design or inconsistent data are problems for scientists. List several reasons
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!