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Rus_ich [418]
2 years ago
11

What would be Kelley's weight be in newtons if her mass was 70 kilograms

Physics
2 answers:
ad-work [718]2 years ago
8 0

Answer:

Kelly's weight would be 688.47 Newtons.

Explanation:

1 Kilogram would be 9.81 Newtons.

xxMikexx [17]2 years ago
5 0

It all depends on where Kelley is at the moment.

-- If she's on Mars, she weighs 229 N.

-- If she's on the Moon, she weighs 113N.

-- If she's on Earth, she weighs 686 N.

-- If she's in a space capsule coasting from one body to another, then there's no instrument that can measure any weight of her.

So it completely depends on where she happens to be at the moment.

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NASA developed a reflective foil barrier to help shield spacecraft from heat transfer in space. These reflective barriers are no
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3 years ago
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This problem follows up on a discussion from lecture. A wind turbine with an efficiency of 45% for converting wind energy into e
Volgvan

Answer:

4.1 m

Explanation:

10 kW = 10000 W

20mi/h = 20*1.6 km/mi = 32 km/h = 32 * 1000 (m/km) *(1/3600) hr/s = 8.89 m/s

The power yielded by the wind turbine can be calculated using the following formula

P = \frac{1}{2} \rho v^3 A C_p

where \rho = 1.2 kg/m^3 is the air density, v = 8.89 m/s is the wind speed, A is the swept area and C_p = 0.45 is the efficiency

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The swept area is a circle with radius r being the blade length

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r^2 = 52.7 / \pi = 16.79

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4 0
3 years ago
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