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Bingel [31]
3 years ago
11

Where are the oldest rocks found ?

Physics
1 answer:
nignag [31]3 years ago
7 0

Answer:

zircons

Explanation:

they are over 4.375 billion years old

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If it were to snow in Phoenix in July, which type of Earth scientist would be most<br> surprised?
KonstantinChe [14]

Answer:

Economists, I guess.

Explanation:

7 0
3 years ago
2. A wave on a rope has a wavelength of 2.0 m and a frequency of 2.0 Hz. What is the speed of the
TEA [102]

Answer:

4 m/s or 4 meters per second.

Explanation:

In order to calculate the speed of wave, you multiply the wavelength in meters and the frequency of the Wave in Hertz. 2 times 2 equals 4. The wave speed is always in m/s considering that the wavelength is also in meters.

7 0
4 years ago
How long does it take to get from a new moon to a first quarter moon
Andru [333]

'First Quarter' is the phase that appears one quarter of the
period of time from one new moon to the next one.

The total period of the moon's phases is 29.53 days (rounded).

One quarter of it is (29.53 / 4) =  <em>7 days  9.2 hours</em>   (rounded)


5 0
4 years ago
A 12-V battery maintains an electric potential difference between two parallel metal plates separated by 10 cm. What is the elec
Sauron [17]

Answer:

The electric field between the plates is 120 V/m.

(c) is correct option.

Explanation:

Given that,

Potential difference = 12 volt

Distance = 10 cm = 0.1 m

We need to calculate the electric field between the plates

Using formula of electric field

E = \dfrac{V}{d}

Where, V = potential difference

d = distance between the plates

Put the formula

E =\dfrac{12}{0.1}

E=120\ V/m

Hence, The electric field between the plates is 120 V/m.

4 0
4 years ago
What two factors will make an object stable ​
galben [10]

The position of the centre of gravity of an object affects its stability. The lower the centre of gravity (G) is, the more stable the object. The higher it is the more likely the object is to topple over if it is pushed. Racing cars have really low centres of gravity so that they can corner rapidly without turning over.

Increasing the area of the base will also increase the stability of an object, the bigger the area the more stable the object. Rugby players will stand with their feet well apart if they are standing and expect to be tackled.

8 0
3 years ago
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