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Physics: Principles with Applications | 6th Edition | ISBN: 9780130606204 | Authors: Douglas C. Giancoli
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A scuba diver and her gear displace a volume of 65.0 L and

Chapter 4, Problem 30P

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QUESTION:

Problem 30P

A scuba diver and her gear displace a volume of 65.0 L and have a total mass of 68.0 kg. (a) What is the buoyant force on the diver in sea water? (b) Will the diver sink or float?

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QUESTION:

Problem 30P

A scuba diver and her gear displace a volume of 65.0 L and have a total mass of 68.0 kg. (a) What is the buoyant force on the diver in sea water? (b) Will the diver sink or float?

ANSWER:

ANSWER:The mass of the car is 1500 kg.The inclination of the road is 30 with the horizontal.The net height it has to reach is h 1 h =25 + 5 = 10meters.The car is already at a height of 5 meters.The speed of the car is 10 m/s.a)By the use of conservation of mechanical energy, we can deduce whether the car canmake it to the top or not.The law says that, K.E + P.E = K.E + P.E initial initial final final 2 2 1/2 mv + mgh = 1/21mv 2 + mgh 1/2 × 1

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