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Solnce55 [7]
3 years ago
10

an object weighing 15 newtons is lifted from the ground to a height of 0.22 meter what is the increase in the object's gravitati

onal potential energy?
Physics
2 answers:
kicyunya [14]3 years ago
5 0
GPE= weight•height= 15 N• 0.22meter= 3.3 Joules
I hope this helps ~~Charlotte~~
Butoxors [25]3 years ago
4 0

Answer:

GPE=3.3 J  (Joules)

Explanation:

Gravitational potential energy is the energy an object has due to its position above Earth,  it's given by the equation GPE = mgh, where

<em>m: mass of the object.</em>

<em>g: acceleration due to gravity.</em>

<em>h: height.</em>

We have the weight of the object, this is P=15N <em>(newtons) </em>and P=mg then:

GPE=Ph

GPE=(15N)(0.22m)

GPE=3.3 Nm

GPE=3.3 J

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3 years ago
A short-wave radio antenna is supported by two guy wires, 155 ft and 175 ft long. Each wire is attached to the top of the antenn
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Answer:

163.8 ft

Explanation:

In triangle ABD

AB = 155 ft

Cos63 = \frac{BD}{AB} = \frac{BD}{155}\\BD = 155 Cos63 \\BD = 70.4 ft

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Using Pythagorean theorem in triangle ADC

AC^{2} = AD^{2} + DC^{2} \\175^{2} = 148^{2} + DC^{2} \\DC = 93.4 ft

d = distance between the anchor points

distance between the anchor points is given as

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3 years ago
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A truck contains both hydraulic brakes (reliability 0.96) and mechanical brakes (reliability 0.99). What is the probability of s
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