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prisoha [69]
3 years ago
7

A scientist is studying the effect on human health of bacteria that live in the human intestine. In her study, she found that th

e bacteria actually help the body’s immune response. To develop scientific consensus about her idea, the scientist should contact a local reporter to share her ideas. publish her results in a peer-reviewed journal. advise other scientists that her experiment does not require replication. avoid sharing her research methods to see if other scientists obtain the same results on their own.
Physics
2 answers:
irga5000 [103]3 years ago
5 0
70 is the correct awnser
Taya2010 [7]3 years ago
3 0

Answer:

70

Explanation:

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Identifying Mechanical Energy
arsen [322]
Bruh ima be honest with you idek
3 0
4 years ago
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A bicyclist starting from rest applies a force of F = 454 N to ride his bicycle across flat ground for a distance of d = 250 m b
frutty [35]

Answer:

1.) 113500J

2.) 237m

Explanation:

Hello!

To solve this exercise follow the following steps, the description and complete process is in the attached image

1. Draw the full sketch of the problem.

2. The work is defined as the product of the trajectory by the force that is parallel to this direction, for this reason to find the work done we multiply the horizontal distance (250m) by the applied force (454N)

3. The potential energy is equal to the product of mass, gravity and height and is equal to the work done by the force applied by the cyclist, of this relationship and using algebra we can find the height that the cyclist climbed

4. We use the sine function to find the diagonal distance using the height and angle of the slope

7 0
3 years ago
You have a radioactive sample with a half-life of 1 hour. At t = 1 hour, a Geiger counter measures its radiation at 40 counts/mi
Mama L [17]

Answer:

Explanation:

Given that, .

The half-life of a radioactive element is

t½ = 1 hr.

At the first hour, the radioactive element has 40 counts/minute

After 4 hours it has 5 counts/minute

So,

We want to filled the table.

0 hours, I.e at the start

40 counts/mins × 2 = 80 counts / mis

First half-life (first hour) is

40 counts/mins

Second half-life (second hour)

40 counts/mins × ½ = 20 counts/mins

Third half-life (third hour)

40 counts/mins × ¼ = 10 counts / mins

Fourth half life (fourth hour)

40 counts/mins × ⅛ = 5 counts / mins

So, the table is

Time........................Geiger Counter Rate

0 hours.................... 80 counts / minutes

1 hour........................ 40 counts / minutes

2 hours..................... 20 counts / minutes

3 hours..................... 10counts / minutes

4 hours...................... 5 counts / minute

6 0
3 years ago
Can a moving object have gravitational energy?
Evgesh-ka [11]

Answer:

It is worth noting that the higher the gravitational energy of an object moving downwards, the lower the kinetic energy, and the lower the kinetic energy of an object moving upwards, the higher its gravitational energy.

Gravitational potential energy is acquired by an object when it has been moved against a gravitational field. For example, an object raised above the surface of the Earth will gain energy, which is released if the object is allowed to fall back to the ground.

5 0
3 years ago
Explain whether Washington, D.C., or
Svetradugi [14.3K]
I would say Orlando since its near more ocean than Washington. Since Ocean can change weather by making it cold or warm depending on the season.
5 0
3 years ago
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