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3 years ago

What is the velocity of a freely falling object 5 seconds after being dropped ? After 6 seconds?

Physics

1 answer:

Verizon [17]3 years ago

6 0

122.5 meters in 5 seconds

176.4 meters in 6 seconds

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The earth orbits the sun once per year at the distance of 1.50 x 1011 m. Venus orbits the sun at a distance of 1.08 x 1011 m. Th

worty [1.4K]

Answer:

Venus will take 223.015 days to make one orbit around the sun .

Explanation:

Given that,

Distance $r = 1.50\times10^{11}\ m$

Distance $r'=1.08\times10^{11}\ m$

We need to calculate the time period for Venus

Using Kepler's third law

For Earth,

$T^2\propto r^3$ ....(I)

For Venus,

$T'^2\propto r'^3$ ....(II)

Ratio of equation (I) and (II)

$\dfrac{T'^2}{T^2}=\dfrac{r'^3}{r^3}$ ....(I)

Put the value in the equation

$\dfrac{T'^2}{T^2}= \dfrac{1.08\times10^{11}}{1.50\times10^{11}}$

$T'^2=\dfrac{1.08\times10^{11}}{1.50\times10^{11}}\timesT^2$

$T'^2=(\dfrac{1.08\times10^{11}}{1.50\times10^{11}})^{\dfrac{3}{2}}\times1$

$T=0.6109\ earth year$

$T=0.611\times365$

$T=223.015\ days$

Hence, Venus will take 223.015 days to make one orbit around the sun

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3 years ago

What is a substance?

ycow [4]

A.a uniform mixture that can’t be separated

"substance" seems vague here

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4 years ago

What would happen if a proton were added to the nucleus of the atom? (Check all that apply)

katen-ka-za [31]

Answer:

It would become a different element.

Explanation:

When you change the number of protons i.e, add a proton in the nucleus of an atom, you will change the atom from one element to a different element and also positive charge of the atom also increased by 1.

For example, adding a proton to the nucleus of an atom of hydrogen creates an atom of helium.

So, we conclude that by adding a proton the atom will change from one element to another element.

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3 years ago

T/-15=-3. what is t?

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Answer:

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2 years ago

What are the condition required work to be done

Wewaii [24]

Answer:

The first is that the object moves

7 0

3 years ago

Read 2 more answers