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yulyashka [42]
3 years ago
11

PLEASE HELP ME!! Use Element and Pure Substance in the same sentence.

Physics
1 answer:
kati45 [8]3 years ago
5 0
Water is an element and a pure substance as it can not be broken down.
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When an object is thrown upwards and reaches its maximum height its speed is: a. Greater than the initial
suter [353]

Answer:

Option d

Explanation:

When we throw an object in the upward direction, we provide it with certain initial velocity due to which it covers a certain distance up to the maximum height.

While the object is moving in the upward direction, its velocity keeps on reducing due to the acceleration due to gravity which acts vertically downwards in the opposite direction thus reducing its velocity.

So, the maximum height attained by the object is the point where this upward velocity of the body becomes zero and after that the object starts to fall down.

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why do a circulatory system is important in meeting the needs of all cells throughout an animals body
valentinak56 [21]
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3 0
3 years ago
Does coefficient of thermal expansion vary with temperature?
N76 [4]

Answer:

yes

Explanation:

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What is the kinetic energy of a ball that has a mass of 3kg and Is<br> moving at 5m/s?
Arada [10]

Answer:

E kin = 1/2 • m • v^2

E kin: kinetic energy

m: mass

v: velocity

Explanation:

6 0
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