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Q: If no friction acts on a diver during a dive, then which of the following statements is true? A. The total mechanical energy of the system increases. B. Potential energy can be converted into
kinetic energy but not vice versa. C. (KE+ PE)beginning = (KE + PE)end D. all of the above
A: D. all of the above
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Asked 10/17/2012 8:23:04 PM
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The acceleration due to gravity on the surface of Mars is about one third the acceleration due to gravity on Earth’s surface. The weight of a space probe on the surface of Mars is about A. nine times greater than its weight on Earth’s surface. B. three times greater than its weight on Earth’s surface. C. one third its weight on Earth’s surface. D. the same as its weight on Earth’s surface
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Expert Answered
Updated 1/19/2015 1:05:20 PM
1 Answer/Comment
The acceleration due to gravity on the surface of Mars is about one third the acceleration due to gravity on Earth s surface. The weight of a space probe on the surface of Mars is about: One-third its weight on Earth’s surface.

Added 1/19/2015 1:05:18 PM
This answer has been confirmed as correct and helpful.
Confirmed by Andrew. [1/19/2015 1:11:55 PM]
Nuclear power plants are designed to convert nuclear energy into what type of energy? A. electrical B. geothermal C. mechanical D. chemical
Weegy: D. mechanical (More)
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Updated 4/4/2016 1:11:49 AM
1 Answer/Comment
Nuclear power plants are designed to convert nuclear energy into electrical energy.
Added 4/4/2016 1:11:48 AM
This answer has been confirmed as correct and helpful.
Confirmed by jeifunk [4/4/2016 3:17:04 AM]
An ambulance siren sounds different as it approaches you than when it moves away from you. What scientific term would you use to explain how this happens? A. ultrasound B. diffraction C. rarefaction D. the Doppler effect
Weegy: An ambulance siren sounds different as it approaches you than when it moves away from you. You would used the term the Doppler effect to explain how this happens. (More)
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Updated 12/30/2015 5:08:48 AM
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