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3 years ago

Giving brain list

Physics

2 answers:

Montano1993 [528]3 years ago

4 0

Answer:

1= d

2= c

3= b

4= a

5= c

6= b

7= d

motikmotik3 years ago

4 0

1) lack of clean water
2) cells produce antibodies common to all pathogens
3) touching wounds
4) cystic fibrosis
5) to make it possible for others to replicate the experiment
6) scientific experiment
7) student b because it can be done in natural settings

sorry if these are wrong, hope it helps

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The single biggest advantage that plastic water bottles have is convenience. List all of the negative consequences of drinking b

Rashid [163]

Answer: The inconvienence is it is hurting our ecosystem because all of the plastic is being thrown away and it takes a long time to break down. On the other hand it is handy to have a lot of water supply. I thing water bottles are worth it.

Explanation:

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4 years ago

What is the name of the galaxy in which the earth resides?

Crazy boy [7]

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3 years ago

G = 10 N/kg or 10 m/s2

Irina18 [472]

Answer:

a) $U_{g} = 40\,J$ , b) $\eta = 70\,\%$ , c) $v = 20\,\frac{m}{s}$

Explanation:

a) The initial potential energy is:

$U_{g} = (0.2\,kg)\cdot \left(10\,\frac{m}{s^{2}} \right)\cdot (20\,m)$

$U_{g} = 40\,J$

b) The efficiency of the bounce is:

$\eta = \left(\frac{14\,m}{20\,m} \right)\times 100\,\%$

$\eta = 70\,\%$

c) The final speed of Danielle right before reaching the bottom of the hill is determined from the Principle of Energy Conservation:

$K = U_{g}$

$U_{g} = \frac{1}{2}\cdot m \cdot v^{2}$

$v = \sqrt{\frac{2\cdot U_{g}}{m} }$

$v = \sqrt{\frac{2\cdot (40\,J)}{0.2\,kg} }$

$v = 20\,\frac{m}{s}$

5 0

3 years ago

Help!!!<br>middle school physics also please explain :)

Dmitriy789 [7]

Answer:

hope its helps

good luck

8 0

3 years ago

An electron is pushed into an electric field where it acquires a 1-V electrical potential. Suppose instead that two electrons ar

sleet_krkn [62]

Answer:

0.5 V

Explanation:

The electric potential distance between different locations in an electric field area is unaffected by the charge that is transferred between them. It is solely dependent on the distance. Thus, for two electrons pushed together at the same distance into the same field, the electric potential will remain at 1 V. However, the electric potential of one of the two electrons will be half the value of the electric potential for the two electrons.

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3 years ago