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Andrei [34K]
2 years ago
14

Which of these devices does NOT contain a magnet or electromagnet?

Physics
2 answers:
bulgar [2K]2 years ago
8 0
C. A lightbulb

This is because a light bulb uses a filament to send a current to turns electricity into light. Because filaments are mostly made of tungsten, the resistance of the filament gets so hot that it heats the light bulb.

This process does not need a magnet or electromagnet like the doorbell, electric motor, and telephones need magnets.
Alex_Xolod [135]2 years ago
7 0
A light bulb don’t have magnet
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Gantt charts are A. widely used network techniques. B. not widely used. C. planning charts used to schedule resources and alloca
kotykmax [81]

Answer:

planning charts used to schedule resources and allocate time is the correct answer

Explanation:

  • Gantt Charts are a project planning tool used to track the projects from the start to endpoint.
  • Gantt charts are used for the preparation and planning of the projects.
  • By using Gantt charts we can assess how much time a project would take to complete and we can also determine resources required with the help of Gantt charts.

6 0
3 years ago
Why the blood pressure in human body is greater at the feet than at the brain. please help!!!!​
maxonik [38]

Answer:

The pressure of liquid column is given by p=hpg, where h is depth, p is density and g is acceleration due to gravity.

Therefore, pressure of the liquid column increases with depth. The height of the blood column in a human body is more at feet than at the brain. Therefore, the blood pressure in humans is greater at the feet than the brain.

8 0
2 years ago
Read 2 more answers
The aqueous humor in a person's eye is exerting a force of 0.242 N on the 1.21 cm2 area of the cornea. What pressure is this in
Virty [35]

Answer:

<h2><em>15.00124mmHg</em></h2>

Explanation:

Pressure is defined as the ratio of force applied to an object to its area.

Pressure = Force/Area

Given parameters

Force = 0.242N

Area = 1.21cm²

Required parameters

Pressure = 0.242/1.21

Pressure = 0.2N/cm²

Using the conversion to convert the pressure to mmHg

1N/cm² = 75.0062mmHg

0.2N/cm² = y

y = 0.2 * 75.0062

y = 15.00124mmHg

<em>Hence the pressure in mmHg is 15.00124mmHg</em>

4 0
2 years ago
An object is attached to a vertical spring and bobs up and down between points a and
Anton [14]
 it would be at either A or B. 
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3 years ago
Objects that transmit some light and reflect/absorb the rest of the light, like stained glass, are
11111nata11111 [884]
You are correct it is translucent because opaque let’s no light through but transparent lets almost all light through
3 0
3 years ago
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