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olya-2409 [2.1K]
3 years ago
12

What's the atom and ion for Calcium

Physics
1 answer:
Savatey [412]3 years ago
5 0
Atom: Ca
Ion: Ca^{2+}
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Physics question, any help is appreciated :)
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Runner 2 sees Runner 1 passing him with a velocity of 17 m/s west.


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What kind of model is shown below?
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D. a foot model



btw this is a joke right cuz there ain’t no picture lol
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A mass of 4.8 kg is dropped from a height of 4.84 meters above a vertical spring anchored at its lower end to the floor. If the
krek1111 [17]

Answer:

45.6 cm

Explanation:

Let x (m) be the length that the spring is compressed. We know that when we drop the mass from 4.84 m above and compress the springi, ts gravitational energy shall be converted to spring potential energy due to the law of energy conservation

E_g = E_p

mgh = 0.5kx^2

where h = 4.84 + x is the distance from the dropping point the the compressed point, and k = 24N/cm = 2400N/m is the spring constant, g = 9.81 m/s2 is the gravitational acceleration constant. And m = 4.8 kg is the object mass.

4.8*9.81(4.84 + x) = 0.5 * 2400 * x^2

47.088x + 227.906 = 1200x^2

1200x^2 - 47.088x - 227.906 = 0

x = 0.456m or 45.6 cm

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4 years ago
Jonah observes the Sun through a special filtered telescope during a total solar eclipse. He sees a red ring and a faint white r
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How did the volcano Mt. St. Helens form?
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Given what we know about volcanic formations, we can conclude that the Mt. St. Helens volcano was formed by the process described in option D, "Subduction  an oceanic continental convergent boundary caused a mountain  range to form and magma to come to the surface".

Mt. St. Helens is a volcano that falls under the category of a stratovolcano. Stratovolcanoes are volcanoes that commonly form at subduction zones. This process forms chains or clusters of mountains along the boundaries of tectonic plates, where oceanic crust is pulled under another type of crust. This process tends to form mountain ranges which contain volcanoes, such as:

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To learn more visit:

brainly.com/question/3080956?referrer=searchResults

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