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Kazeer [188]
3 years ago
13

Fossils provide evidence about all of the following except

Physics
1 answer:
bixtya [17]3 years ago
5 0
I am not sure of the answer but I think that the answer is a
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In _______ atomic model, negative electrons orbit the positively charged nucleus.
Shalnov [3]
In (A. Dalton's) atomic model, negative electrons orbit the positively charged nucleus.
8 0
3 years ago
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If the skater coasts only around 65 degrees of the circle, find the magnitude of his displacement vector.
baherus [9]
We are given a skater who coasts only around 65 degrees of the circle. The magnitude of the vector is determined by converting 65 degrees to radians:

65//180 = 0.36 radians

The displacement of the vector is 65 degrees east. 
4 0
4 years ago
Find the pressure exerted on the floor by a 100N box whose bottom area is 40cm x<br> 50cm.
Mazyrski [523]

<u>Answer:</u>

Pressure exerted = 500 Pa

<u>Explanation:</u>

The formula for pressure is as follows:

Pressure = \frac{Force \space\ applied}{Area}

In this case,

Force applied = 100N

Area = 40cm × 50cm = 2000cm² = 2000 × 10⁻⁴ = 0.2m²

Substituting these values into the formula:

Pressure = \frac{100}{0.2}

⇒ Pressure = 500 Pa

3 0
2 years ago
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How are volcanoes formed at subduction zones
gavmur [86]

Answer:

magma forming above a subducting plate slowly rise into the overriding crust causing the formation of a volcano

Explanation:

3 0
3 years ago
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A roller coaster car is going over the top of a 18-mm-radius circular rise. At the top of the hill, the passengers "feel light,"
Andre45 [30]

Answer:

0.29713 m/s

Explanation:

m = Mass of person

g = Acceleration due to gravity = 9.81 m/s²

v = Velocity

r = Radius = 18 mm

By balancing the forces in the system we have

mg-N=\dfrac{mv^2}{r}\\\Rightarrow mg-\dfrac{mg}{2}=\dfrac{mv^2}{r}\\\Rightarrow v=\sqrt{r(g-\dfrac{g}{2})}\\\Rightarrow v=\sqrt{0.018\times (9.81-\dfrac{9.81}{2})}\\\Rightarrow v=0.29713\ m/s

The velocity of the coaster is 0.29713 m/s

7 0
3 years ago
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