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3 years ago

11

The seasons on earth are caused by its elliptical orbit around the sun. the seasons on earth are caused by its elliptical orbit

around the sun.
a. True
b. False

2 answers:

Korolek [52]3 years ago

7 0

That statement is false.
That statement is false.

Nady [450]3 years ago

6 0

The answer is b: false

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By what factor would your weight increase if you could stand on the sun? (never mind that you can't.)

Fofino [41]

Gravity on the surface of sun is given as

$g = \frac{GM}{R^2}$

here we know that

$M = 1.98 \times 10^{30} kg$

$R = 6.95 \times 10^8 m$

now we will have

$g = \frac{(6.67 \times 10^{-11})(1.98 \times 10^30)}{(6.95 \times 10^8)^2}$

$g = 273.4 m/s^2$

now we need to find the ratio of weight on surface of sun and on surface of Earth

$R = \frac{mg_{sun}}{mg_{earth}}$

$R = \frac{273.4}{9.8} = 28 times$

so weight will increase by 28 times

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2 years ago

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nasty-shy [4]

I am going to have to say B

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blondinia [14]

Answer:

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Explanation:

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Trava [24]

I believe Glacier play no role in the interaction

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Which vector should be negative?

pentagon [3]

Answer:

The velocity of a falling object

Explanation:

The positive X axis is towards right and positive Y axis is towards up, so North direction is positive

A vector with less than 1 magnitude is not negative, because its magnitude may be in between 0 and 1 which is positive vector.

Any vector whose magnitude is greater than 1 is never be a negative vector.

The velocity of a falling object is towards bottom, that is towards negative Y axis. So that vector is negative.

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2 years ago