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3 years ago

15

What are the answers to #1 and #2?

1 answer:

sergiy2304 [10]3 years ago

4 0

5.0 m (1) (2) the slope of the line at any point in time

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If the radius of the sun is 7.001×105 km, what is the average density of the sun in units of grams per cubic centimeter? The vol

xenn [34]

Answer:

Average density of Sun is 1.3927 $\frac{g}{cm}$ .

Given:

Radius of Sun = 7.001 × $10^{5}$ km = 7.001 × $10^{10}$ cm

Mass of Sun = 2 × $10^{30}$ kg = 2 × $10^{33}$ g

To find:

Average density of Sun = ?

Formula used:

Density of Sun = $\frac{Mass of Sun}{Volume of Sun}$

Solution:

Density of Sun is given by,

Density of Sun = $\frac{Mass of Sun}{Volume of Sun}$

Volume of Sun = $\frac{4}{3} \pi r^{3}$

Volume of Sun = $\frac{4}{3} \times 3.14 \times [7.001 \times 10^{10}]^{3}$

Volume of Sun = 1.436 × $10^{33}$ $cm^{3}$

Density of Sun = $\frac{ 2\times 10^{33} }{1.436 \times 10^{33} }$

Density of Sun = 1.3927 $\frac{g}{cm}$

Thus, Average density of Sun is 1.3927 $\frac{g}{cm}$ .

4 0

3 years ago

The thermosphere is characterized by a drastic increase in temperature. What is the reason for this increase? A. absorption of u

ExtremeBDS [4]

Answer:

A. absorption of ultraviolet rays from the Sun

Explanation:

The thermosphere helps protect and regulate Earth's temperature by absorbing much of the UV radiation and X-rays emitted by the Sun. When the Sun is most active, the thermosphere heats up and increases in size, increasing its protective power.

Just like in the oceans, the Earth's atmosphere experiences waves and tides that help move energy within it. The winds and the general circulation of the thermosphere are strong drivers of these tides and waves.

8 0

3 years ago

1. Oh no! Your car breaks down on the highway, and you have to push the car to the side of the road. If your car is 400 kg and y

fomenos

Divide 400/200 and that should give you your answer

7 0

2 years ago

g power output of 87 W. At what distance will the decibel reading be 120 dB, which is noise level of a loud indoor rock concert

Kazeer [188]

Given that,

Output power = 87 W

Decibel reading = 120 dB

We need to calculate the intensity of sound

Using formula of intensity of sound

$dB=10\log(\dfrac{I}{I_{0}})$

Put the value into the formula

$120=10\log(\dfrac{I}{1\times10^{-12}})$

$12=log(\dfrac{I}{1\times10^{-12}})$

$10^{12}=\dfrac{I}{1\times10^{-12}}$

$I=10^{12}\times1\times10^{-12}$

$I=1\ W/m^2$

We need to calculate the distance

Using relation of power out[ut and intensity

$I=\dfrac{P}{4\pi r^2}$

Put the value into the formula

$1=\dfrac{87}{4\pi r^2}$

$r=\sqrt{\dfrac{87}{4\pi}}$

$r=2.63\ m$

Hence, The distance is 2.63 m

7 0

3 years ago

A baseball is thrown a distance of 20 meters what is its speed if it takes 0.5 seconds to cover the distance?

anastassius [24]

Speed=distance/time
=20m/0.5s
=40ms^-1

6 0

3 years ago