Why was it important to drop the ball from the same height three times? Why were the numbers

Biology

1 answer:

Savatey [412]2 years ago

7 0

Answer:

It is important to do this to test your theory multiple times, so that you can see what effect the drop has on it when doing this multiple times. The numbers were slightly different because the recordings will not always be the same.

Explanation:

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Rina8888 [55]

Answer C, I think. Hope to help :)

3 0

2 years ago

A section through the renal cortex can be identified quickly by the presence of

Kazeer [188]

Answer:

Renal capsule.

Explanation:

The renal capsule is known as a fibrous layer. That fibrous layer helps to cover the kidney in a layer of perirenal fat (known as the adipose capsule). The renal cortex is known as the outer part of the kidney where ultrafiltration occurs. It is present between the renal medulla and the renal capsule.

The renal capsule is important for the physiological function of the kidney in the human body. It helps to influence interstitial pressure and consistently tubular reabsorption of water and sodium.

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2 years ago

How is enthalpy used to predict whether a reaction is endothermic or exothermic?

Radda [10]

Answer:

$329.48 KJ/mol$ heat is released by the combustion of $2 mol$ of methane

Explanation:

The value of enthalpy determines whether the reaction is exothermic or endothermic. If the enthalpy change is positive, then the reaction is endothermic (heat or energy released) and if the enthalpy change is negative then the reaction is exothermic (heat or energy absorbed).

$2CH_4(g)+4O_2(g) => 2CO_2(g)+4H_2O(g)$