Question

(12) The Earth is one astronomical unit from the

Answer 1

X+5

Y-7

Fractions can someone help me pls

Answer 2

Answer:

3,821,912.5 miles/hour is the linear speed of the earth around the sun.

The Earth make 0.02616 revolutions in 4 hours.

Step-by-step explanation:

$v = r\times \omega$

v =  linear speed

r = radius from the center

$\omega$= angular speed

The angular speed of the Earth around the sun = 0.9863 degrees/day

Distance of the earth from the sun = r = 1 AU = $93\times 10^{6} miles$

Linear speed of earth around the sun = v

v = $93\times 10^{6} miles\times 0.9863 degrees/day=91,725,900 miles/day$

1 day = 24 hours

v=$\frac{91,725,900 miles}{24 hours}=3,821,912.5 miles/hour$

3,821,912.5 miles/hour is the linear speed of the earth around the sun.

Duration  of drive from Dallas to Texas = 4 hours

Miles of revolution of earth covered in 4 hours :

$3,821,912.5 miles/hour\times 4 hr = 15,287,650 miles$

$1 revolution = 2\pi r$

$1 revolution = 2\times 3.14\times 93\times 10^6 miles$

The revolution of earth in 15,287,650 miles will be:

$\frac{1}{2\times 3.14\times 93\times 10^6 miles}\times 15,287,650$

=0.026162420 revolution ≈ 0.02616 revolutions

The Earth make 0.02616 revolutions in 4 hours.