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Rainbow [258]
3 years ago
7

what is the gravitational potential energy of a 150-kg object that is suspended 5-m above the earth's surface

Physics
1 answer:
77julia77 [94]3 years ago
7 0
150x5x9.7(gravity on earth)=7275
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Contrast the force of gravity between these pairs of objects a 1 kg mass and a 2 kg mass that are 1 m apart and two 2 kg masses
Yuki888 [10]

Solution

Force between pair of objects of masses 1kg and 2kg that are 1m apart is given as

F=G\times \frac{1\times 2}{1^2}

here G is gravitational constant

G=6.674\times10^{-11}Nm^2kg^{-2}

therefore,

F=6.674\times10^{-11}Nm^2kg^{-2}\times 2

F=13.348\times10^{-11}Nm^2kg^{-2}

similarly Force between pair of objects of masses 2kg each that are 1m apart is given as

F'=G\times \frac{2\times 2}{1^2}

F'=6.674\times10^{-11}Nm^2kg^{-2}\times 4

F'=2\times 13.348\times10^{-11}Nm^2kg^{-2}

or F'=2F

it means  Force between pair of objects of masses 2kg each that are 1m apart is equal to twice the Force between pair of objects of masses 1kg and 2kg that are 1m

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3 years ago
Explain how a higher temperature affects the efficiency of transmitting electricity
Slav-nsk [51]
Increasing ambient temperature decreases efficiency and load carrying capacity of electric transmission lines.
Increased molecular movement in the conductors as temperature rises, increases resistance to current flow.
6 0
3 years ago
A body moves a speed of 20km/hr in 15secs, what is the distance covered.​
Taya2010 [7]

Answer:

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Explanation:

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Which statement best describes how resources are distributed? ​
jarptica [38.1K]

according to it's nature

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A 150 kg car hits a wall with 45 N of force, what was its acceleration?​
alisha [4.7K]

Answer:

a = 0.3 m/s²

Explanation:

Given: 45 N, 150 kg

To find: a

Formula: a = \frac{F}{m}

Solution: To find a, divide the force by the weight  

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=  45 ÷  150

= 0.3 m/s²

Newtons are derived units, equal to 1 kg-m/s². In other words, a single Newton is equal to the force needed to accelerate one kilogram one meter per second squared.

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