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Alina [70]
3 years ago
15

Martina has a sample of an unknown substance. She measures the substance. Its mass is 13.5 grams, and its volume is 5 cm3. Which

metal might her sample be made of?
Physics
1 answer:
yaroslaw [1]3 years ago
3 0

Answer:

Aluminum Density

Explanation:

2.7 g/cm3

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Answer:

Edwin Hubble

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You could use an elevator or the stairs to lift a box to tenth floor.which has greater power?
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Stairs don't have any power at all.  All the energy used to climb them
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7 0
3 years ago
How many hours does it take for the sun's light to reach the edge of the solar system?
Georgia [21]

32 hours is what I got


7 0
3 years ago
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A ball of mass 2 kg is kept on the hill of height 3 km. Calculate the potential energy possessed by it ?
zysi [14]
We know that -

P.E=m*g*h

Where,

m = mass

g = acceleration due to gravity

h=height

First we convert height into meters.

1 km = 1000 meters

3 km = 1000 * 3 meters = 3000 meters

So, putting the values in the above formula, and by taking 'g' = 9.8 m/s², we get-

P.E.= 2*3000*9.8

P.E.= 58800 Joules

P.E.= 58.8 kJ

7 0
3 years ago
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"Influence" between bodies is reduced as the bodies are
azamat
Both particles and big objects will be influenced by each other less if they are moved further apart. 
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3 years ago
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