Answer: E) comets that impacted Earth.
Based on our current theory of Earth's formation, the water we drink comes from
A) ice that condensed in the solar nebula in the region where Earth formed.
B) chemical reactions that occurred in Earth's crust after Earth formed.
C) chemical reactions that occurred in Earth's core after Earth formed.
D) material left behind during the giant impact that formed the Moon.
E) comets that impacted Earth.
Physics & Space Science
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In any particular place on Earth, certain constellations are visible in the evening only at certain times of the year because ________
A) our evening view of space depends on where Earth is located in its orbit around the Sun B) some constellations are circumpolar C) on any particular night, we can only see stars that are directly opposite (180 degrees away from) the Sun in the sky D) during some times of year, some constellations drop below the southern horizon
Physics & Space Science
Proxima Centauri, the nearest star to the Sun, exhibits an annual parallax of 0.76 arcsec. Determine the distance to Proxima Centauri in parsecs
Physics & Space Science
5 inch diameter spherical oranges are placed in a cooler at 75ºF. The cooler is at 38ºF, the convective heat transfer coefficient is 18 Btu/hr?ft^2 ?ºF and the properties of oranges are the same as water. Determine the time when the surface of the oranges are 40ºF.
What will be an ideal response?
Physics & Space Science
Charge: How many electrons are necessary to produce 1.0 C of negative charge? (e = 1.60 × 10-19 C)
A. 6.3 × 1018 B. 6.3 × 109 C. 1.6 × 1019 D. 1.6 × 109 E. 6.0 × 1023
Physics & Space Science