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2 years ago

What happened to the potential energy and the kinetic energy as the skater went up and down the ramp? Why does this happen?

1 answer:

7 0

Potential energy was high at the top of the ramp and kinetic energy increased while the skater went down the ramp. At the bottom of the ramp the potential energy went away. This is because kinetic energy is energy that a moving object has whereas potential is stored energy due to its position.

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What type of compound is fe3n2

Shkiper50 [21]

Fe3N2, also known as Iron (II) nitride, is an ionic compound.

Ionic compounds are compounds that consists of metals and non-metals bonded with ionic bonds. The metal ion gives up electron(s) to the non-metals.

Since iron is a metal and nitrogen is an non-metal, the bond they would form would be an ionic bond. Iron gives up 2 electrons to form iron(II) ion, while nitrogen gains 3 electrons to form nitride ion. Since one iron cannot let a nitrogen gain 3 electrons, so in the compound, there would be 3 iron (ii) ions that has given up 6 electrons in total while 2 nitride ions have gained 6 electrons in total.

8 0

2 years ago

Which energy source can we can find waste everywhere and shouldn’t run out?

olya-2409 [2.1K]

Answer:

wind

Explanation:

hope this helps

7 0

2 years ago

Read 2 more answers

50 POINTS for a legitimate response. Please answer the question, chose the correct unit conversions on the right. Please read th

makkiz [27]

Answer:

0.121 millimeters

5 0

2 years ago

Hypochlorous acid decays in the presence of ultraviolet radiation. Assume that degradation occurs accord- ing to first-order kin

Dennis_Churaev [7]

Answer:

35.75 days

Explanation:

From the given information:

For first-order kinetics, the rate law can be expressed as:

$\mathsf{In \dfrac{C}{C_o} = -kt}$

Given that:

the rate degradation constant = 0.12 / day

current concentration C = 0.05 mg/L

initial concentration C₀ = 3.65 mg/L

$\mathsf{In( \dfrac{0.05}{3.65})= -(0.12) t}$

㏑(0.01369863014) = -(0.12) t

-4.29 = -(0.12)

t = -4.29/-0.12

t = 35.75 days

3 0

2 years ago

How many grams of oxygen are required to burn 0.10mole of c3h8?

Anastaziya [24]

1mol—44g/mol
0.10mol—x
x=0.10*44
x=4.4 g

8 0

2 years ago