PHYSICS HIGH SCHOOL

A railroad car with a mass of 1.94 ✕ 104 kg moving at 3.28 m/s joins with two railroad cars already joined together, each with the same mass as the single car and initially moving in the same direction at 1.02 m/s. what is the velocity after the collision and the total kinetic energy lost?

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Answer 1
Answer: the total cost is going to be 536 kg

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When two electron in a chemical bond are equally shared between two different atoms, what is the bond

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When two electron in a chemical bond are equally shared between two different atoms, the bond is covalent bond.

What is covalent bond?

A chemical bond known as a covalent bond includes the exchanging of electrons between atoms to create electron pairs.

These electron couples are referred to as bonding pairs or sharing pairs. Covalent bonding is the stable equilibrium of attracting and repulsive forces that exists when two atoms share an electron.

The ability of each atom to reach the equivalent of a full valence shell, which corresponds to a stable electronic state, is made possible for many molecules by the sharing of electrons. Hence, when two electron in a chemical bond are equally shared between two different atoms, the bond is covalent bond.

Learn more about covalent bond here:

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When two electrons are equally shared between two atoms it is a molecular compound using a single non polar covalent bond.

One form of energy changes to multiple other formsa. single transformation
b. multiple transformation

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it is multiple transformation

hope it help

Answer:Multiple transformation

Explanation: one form of energy changes to one other form would be a single transformation

Greyhounds can accelerate at 7 m/s2 at the start of a race. How much force does it take a 35 kg dog to produce this acceleration

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Force = (mass) x (acceleration)              Newton's second law of motion.

Force = (35 kg) x (7 m/s²)  =  245 newtons

                                    (about  55 pounds)

Yall i need this asap

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ASAP Ferg?
Edge 2020

Earth's tectonic activity is a significant factor that made life on Earth possible because the movement of Earth's crustal plates affects _____.

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Earth's tectonic activity is a significant factor that made life on Earth possible because the movement of Earth's crustal plates affects volcanic activity.

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Where does the material for new mountain ranges come from

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In the formation of mountain ranges and all other landforms, there is always a cycle involved. As one mountain comes up, another land gets pushed down into the hot mantle, where the rock will melt. Due to convection currents, the tectonic plates move and their boundaries cause them to interact with each other. As mountain ranges are formed, other land gets pushed up forming what we know are mountains, with rising magma from other parts of the world solidifying creating new rock to fill the empty space.
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