Pop Quiz

During a recent blizzard Jack made two snowballs, one of which had twice as large a diameter than the other. As usual the weather warmed up and the snowballs began to melt. The melting only took place at the surface of the snowballs, so the speed at which they melted was proportional to the remaining surface.

How much was left of the small snowball when half of the volume of the large snowball had melted?

A) Approximately 20.27%

B) Approximately 30.42%

C) Approximately 50%

D) Approximately 10.75%

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News & Events

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[Jul 28 2015]

R&D Magazine features Mines' algal biofuels research ...more

[Jul 24 2015]

Mines students help explain geology in Ansel Adams exhibit at Foothills Art Center ...more

[Jul 24 2015]

Science mag reports on Prof. O'Hayre's fuel cell breakthrough ...more

[Jul 23 2015]

Prof. O'Hayre's ceramic fuel cell research published in Science magazine ...more

[Jul 23 2015]

Powerful, efficient ceramic fuel cells could enable in-home production of electricity from natural gas GOLDEN, Colo., July 23, 2015 – The development of affordable and efficient ceramic fuel cells that could be used to power homes, the culmination of five years ...more

[Jul 23 2015]

Payne Institute for Earth Resources named thanks to $5 million investment GOLDEN, CO, July 23, 2015 — Colorado School of Mines’ premier policy institute for earth resources has a new name: the Payne Institute for Earth Resources. ...more

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Last Updated: 07/02/2015 08:37:11