2 years ago

Whats the answer ----------------------------

Physics

1 answer:

GenaCL600 [577]2 years ago

8 0

Answer:

repel each other

Explanation:

The magnitude of the charge of an electron is called... ... If a positively-charged glass rod is suspended so that it turns easily and another positively-charged glass rod is brought close to it, the two rods will... Repel each other.

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Good day can I get some help please?

abruzzese [7]

Answer:

432 J

Explanation:

When moving linearly:

Kinetic Energy = (1/2)mV^2

So here you have:

KE=(1/2)(6)(12^2)=(1/2)(6)(144)=432

The unit for energy is Joules (J), so your answer would be 432 J.

8 0

3 years ago

Water displacement is used to find what? a. volume b. density

Alex

Answer:

Volume

Explanation:

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2 years ago

One piece of copper jewelry at 111°C has exactly twice the mass of another piece, which is at 28°C. Both pieces are placed insid

vladimir2022 [97]

Answer:

83.33 C

Explanation:

T1 = 111 C, m1 = 2m

T2 = 28 C, m2 = m

c = 0.387 J/gK

Let the final temperature inside the calorimeter of T.

Use the principle of calorimetery

heat lost by hot body = heat gained by cold body

m1 x c x (T1 - T) = m2 x c x (T - T2)

2m x c X (111 - T) = m x c x (T - 28)

2 (111 - T) = (T - 28)

222 - 2T = T - 28

3T = 250

T = 83.33 C

Thus, the final temperature inside calorimeter is 83.33 C.

3 0

2 years ago

EASY BRAINLIEST PLEASE HELP!!

Soloha48 [4]

Answer:

Solution given:

frequency[f]=x

velocity[V]=15000m/s

wave length=59m

we have

wave length= $\frac{V}{f}$

59m= $\frac{15000}{x}$

x= $\frac{15000}{59}$ =254.Hz

frequency=254Hz

7 0

2 years ago

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Can someone explain please ???

Radda [10]

Answer: A

Explanation:

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2 years ago