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LUCKY_DIMON [66]
3 years ago
13

We beat a blanket with a stick to remove dust particles why​

Physics
1 answer:
lutik1710 [3]3 years ago
6 0

Answer:

removing the dust particles cleans the blanket

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The sun is more massive than the moon, but the sun is farther from the earth. Which one exerts a greater gravitational force on
love history [14]

Answer:

178.4 times

Explanation:

We have Newton formula for attraction force between 2 objects with mass and a distance between them:

F_G = G\frac{M_1M_2}{R^2}

where G =6.67408 × 10^{-11} m^3/kgs^2 is the gravitational constant on Earth. M_1, M_2 is the masses of the 2 objects. and R is the distance between them.

From here we can calculate the ratio of gravitational force between the moon and the sun

\frac{F_s}{F_m} = \frac{G\frac{MM_s}{R_s^2}}{G\frac{MM_m}{R_m^2}}

We can divide the top and bottom by G and M

\frac{F_s}{F_m}= \frac{M_s}{R_s^2}:\frac{M_m}{R_m^2}

= \frac{M_s}{R_s^2}\frac{R_m^2}{M_m}

= \frac{M_s}{M_m}(\frac{R_m}{R_s})^2

= \frac{1.99*10^{30}}{7.35*10^{22}}(\frac{3.85*10^8}{1.5*10^{11}})^2

= 27074830*6.59*10^{-6} = 178.4

So the gravitational force of the sun is about 178 times greater than that of the moon to an object on Earth

5 0
3 years ago
Trên bóng đèn có ghi là 12v -6w. Khi đèn sáng bình thường thì dòng điện chạy qua đèn có cường độ là
mrs_skeptik [129]

Answer:

I=P/U=6/12=0.5(A)

Explanation: P=UI ( CÔNG SUẤT = HIỆU ĐIỆN THẾ NHÂN VỚI C Đ D Đ)

4 0
3 years ago
why does the number 54289.00 have seven significant figures and not five? explain using the rules of significant figures
SCORPION-xisa [38]

The way I see it, depending on what the number represents, the number in the decimals spot could mean something significant. hope this helps :)

7 0
3 years ago
Read 2 more answers
50501.00 Scientific notation
Elenna [48]
Your answer would be 5.0501 x 10 with the little 4 on top

3 0
3 years ago
When a cannon is fired, what newton law does is it represent?
lesantik [10]

Answer:

hiiii!!!!

Explanation:

8 0
4 years ago
Read 2 more answers
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