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Elis [28]
3 years ago
13

In order to control bacterial infections and/or food poisoning, the FDA (Food and Drug Administration) has approved the use of n

uclear energy to control pathogens and extend shelf life of refrigerated and frozen uncooked meat. Which nuclear energy application would be most useful for this situation?
Physics
2 answers:
ololo11 [35]3 years ago
8 0

Answer: Irradiation

Explanation: Irradiation is the process by which the food or the package is first exposed to the ionizing radiation.

The radiations like gamma rays, x-rays or electron beam are exposed to the food which increases the shelf life of the food by killing the harmful bacteria in it or by preventing the growth of harmful bacteria on the food.

It basically aids in killing the bacteria that causes the food spoilage.

Lelechka [254]3 years ago
4 0

The answer is food irradiation. This involves the brief exposure of food to gamma rays or X-rays to kill pathogens that may contribute to food spoilage. This increases the shelf-life of the food. Gamma rays and X-rays emanate from nuclear decay of radioactive materials such as uranium..

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Newton's first law of motion is sometimes called the law of _________.
Gre4nikov [31]
Newtons first law of motion is also known as the law of inertia
3 0
3 years ago
A "moving sidewalk" in an airport terminal moves at 1.0 m/s and is 35.0 m long. If a woman steps on at one end and walks at 1.5
pishuonlain [190]

Answer:

a.14 s

b.70 s

Explanation:

a.Let the sidewalk moving in positive x- direction.

Speed  of sidewalk relative to ground=v_s=1m/s

Speed of women relative to sidewalk=v=1.5m/s

The speed of women relative to the ground

v_w=v_s+v=1+1.5=2.5m/s

Distance=35 m

Time=\frac{distance}{speed}

Using the formula

Time taken by women to reach the opposite end if she walks in the same direction the sidewalk is moving=\frac{35}{v_w}=\frac{35}{2.5}=14s

b.If she gets on at the end opposite the end in part (a)

Then, we take displacement negative.

Speed  of sidewalk relative to ground=v_s=1m/s

Speed of women relative to sidewalk=v=-1.5 m/s

The speed of women relative to the ground=v_w=v_s+v=1-1.5=-0.5m/s

Time=\frac{-35}{-0.5}=70 s

Hence, the women takes 70 s to reach the opposite end if she walks in the opposite direction the sidewalk is moving.

3 0
3 years ago
What advantages does an electromagnet have over a permanent magnet?
KonstantinChe [14]
Electromagnets can be turned off, this makes it easier to release things from the magnetic field. 

Hope this helps :)
4 0
3 years ago
A driver's foot presses with a steady force of 20N on a pedal in a car as shown.
azamat

Answer:

160N

Explanation:

Moments must be conserved - so.

20 * 0.4 = F * 0.05

F=\frac{20*0.4}{0.05} = 160

6 0
3 years ago
Moving company uses a machine to raise a 900 Newton refrigerator to the second floor of a building machine consists of a single
Juliette [100K]
Mechanical advantage of a machine is the ratio of the output force over the input force or M=Fo/Fi. Since M=1, Fi=Fo, or the input force is equal to the output force. This means that to raise the refrigerator that weighs 900 N, we need the same input force of 900 N, or Fo=Fi=900 N. 
6 0
3 years ago
Read 2 more answers
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