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Margarita [4]
3 years ago
8

13. What two major safety problems does hydrogen present?

Engineering
2 answers:
irina [24]3 years ago
8 0

Answer:

The risks associated with the handling of liquid hydrogen are fire, explosion, asphyxiation and extremely low temperature exposure.

-Dominant- [34]3 years ago
7 0

Answer:

fire, explosion, asphyxiation, extremely low temperature exposure/cold burns

Explanation:

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Match the following light concepts
Gelneren [198K]

Answer:

- Light is bounced back at same angle    (Classical Reflection)

- Light penetrates medium at different angle due to different material densities     (Refraction)

Light bounces at different angles in periodic grid     (Reflected Diffraction)

Light enters medium at different angles through a grid     (Transmission Diffraction)

- Light EMF field looses one axis component     (Polarized filter)

Explanation:

Reflection is a phenomenon in which waves (light included) bounce back from an obstacle at the same angle of incidence

Refraction is the change in the angle of a wave as it enters the interface of two media. The change in angle is due to the difference in the densities of the two media.

Reflected diffraction occurs when an optical component with a periodic grid, splits, and diffracts light into several beams travelling in different directions. The light light bounces at an angle in the periodic grid.

Transmission diffraction is dispersion a beam of various wavelengths into a spectrum of associated lines due to the principle of diffraction. In this type of diffraction, light enters medium at different angles through a grid.

Polarized filters removes one field from the incidence electromagnetic wave like light, leaving it to vibrate in only one plane.

6 0
4 years ago
A sinusoidal voltage source produces the waveform, v t = 1 + cos 2πft. Design a system with v t as its input such that an LED wi
DerKrebs [107]

Answer:

See explaination

Explanation:

LM358 is the useful IC which works as buffer. It enables circuit to remove overloading effect on each other. Image is in attachment.

We can define a light-emitting diode (LED) as a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons

See attached file for detailed solution of the given problem.

3 0
3 years ago
The rear window of an automobile is defogged by passingwarm air at 40ºC over its inner surface, and the associatedconvection coe
lora16 [44]

See attachment please.

Download docx
4 0
4 years ago
Briefly explain what are the following AIDC technologies for industry automation:
aliya0001 [1]
I believe a is the answer enjoy
3 0
3 years ago
Technician A says that the distributor cap provides a connection point between the rotor and each individual cylinder plug wire.
Vera_Pavlovna [14]

Answer:

Neither a or b.

Explanation:

The distributor cap is cover which protects internal parts and holds contact between internal rotor and spark plug wires. When inspecting distributor caps there should be some carbon tracking which looks like bright white grease trails.

8 0
3 years ago
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