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Ann [662]
3 years ago
14

Which countries produce the most greenhouse gas emissions?

Physics
1 answer:
Kipish [7]3 years ago
7 0

india and china produce the most greenhouse gas emissions?



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To model time-variant data, one must create a new entity in an m:n relationship with the original entity.
Ksenya-84 [330]

To model time-variant data, one must create a new entity in an m:n relationship with the original entity, is a False statement.

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1 year ago
A 25 kg block is held against a compressed spring and then the spring is allowed to decompress giving the block a velocity. The
Alex787 [66]

Answer:

h=18.05 cm

Explanation:

Given that

m= 25 kg

K= 1300 N/m

x=26.4 cm

θ= 19.5 ∘

When the block just leave the spring then the speed of block = v m/s

From energy conservation

\dfrac{1}{2}Kx^2=\dfrac{1}{2}mv^2

Kx^2=mv^2

v=\sqrt{\dfrac{kx^2}{m}}

By putting the values

v=\sqrt{\dfrac{kx^2}{m}}

v=\sqrt{\dfrac{1300\times 0.264^2}{25}}

v=1.9 m/s

When block reach at the maximum height(h) position then the final speed of the block will be zero.

We know that

V_f^2=V_i^2-2gh

By putting the values

0^2=1.9^2-2\times 10\times h

h=0.1805 m

h=18.05 cm

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3 years ago
Under specific circumstances, waves will bend around obstacles. This type of bending is called
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That type of bending is called "diffraction" of waves.
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a block of wood of density 0.8 gram per centimetre cube has a volume of 60 cm3 the mass of block will be...?​
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Density =mass/Volume

0.8=mass/60
Mass=0.8*60
Mass=48g
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When there is no number in front of a chemical formula in a chemical equation, what number is understood?
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<span>The number in front is the number of molecules (or atoms) taking part in the (balanced) chemical reaction equation.</span>
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