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Natalka [10]
2 years ago
6

(a) The mass of the package is 36 kg.

Physics
1 answer:
ira [324]2 years ago
6 0

Answer:

846.72  J

Explanation:

Given that,

The mass of the package = 36 kg

It is raised through a vertical height of 2.4 m.

Initial potential energy of the package will be 0 as it was at ground.

The change in gravitational potential energy is given by :

\Delta E=mgh\\\\=36\times 9.8\times 2.4\\\\=846.72\ J

Hence, the change in gravitational potential energy is 846.72  J.

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A cylindrical can 150 mm in diameter is filled to a depth of 100 mm with a fuel oil. The oil has a mass of 1.56 kg. Calculate it
Kazeer [188]

Answer:

Density (φ) = 0,8827 Kg/L

Specific weight (Ws) = 8,65 N/L

Specific gravity (Gs) = 0,8827 (without unit)

Explanation:

The density formula: φ = \frac{m}{V}

I know the mass "m", I need to find out the volume of the cylinder (V)

V = π* r²*h

The radius "r" is equal to half the diameter (150mm) = 75mm

Now I can find out the density (φ)

φ = \frac{1,56Kg}{1,767145L} = 0,8827 Kg/L

The specific weight (Ws) is the relationship between the weight of substance (oil) and its volume. We apply the following formula:

Ws = φ*g

(g = gravity = 9,8 m/s²)

Finally, specific gravity (Gs) is the ratio between the density of a substance (oil) "φ(o)" and the density of water "φ(w)" :

Gs = φ(o) /  φ(w)

(φ(w) = 1 Kg/L

Hope this can help you !!

3 0
3 years ago
Question 5 of 10
muminat
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2 years ago
It is essential to behave appropriately on social media and be _______ when you post anything.
Firdavs [7]

Answer:

I would say be Mindful.

Explanation:

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What is the difference between a graph of linear motion and a graph of harmonic motion?
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Hope this helps :)

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