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Flauer [41]
4 years ago
7

If all of earths history was compressed into an hour, humans would appear when

Biology
1 answer:
podryga [215]4 years ago
7 0

The answer to this question is one second ago.

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What percentage of elders are independent and community dwelling at any given moment?
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<span>90% of elders are independent and community dwelling at any given moment, half of them will need nursing-home care at some point, usually for less than a month as they recuperate from hospitalization.</span>
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When the respiratory diaphragm contracts, it flattens, lowering the floor of the thoracic cavity. At the same time, the intercos
Igoryamba

Answer:

1. Increase

2.  Decrease

Explanation:

During inspiration, diaphragm contracts and lowers down. There is a simultaneous contraction of external intercostal muscles and movement of rib-cage upward and outward. All these events lead to an increase in the volume of the thoracic cavity. Increase in volume of the thoracic cavity results in expansion of lungs and lowering down the air pressure within alveoli of lungs.

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1. What is facial reconstruction? Why is it used?
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Students ere investigating of a toy car. They performed 2 trials . Trial 1 / time(s) 5 , distance(m) 10, Trial 2 / Time(s) 20 di
s2008m [1.1K]

Answer: The average speed of the toy car during the two trials is 2m/s.

Explanation:

Speed can be defined as a type of scalar quantity in physics through which the rate at which an object travels through a distance is measured in a given amount of time. The formula for determining the speed of a car is:

Speed= distance/ time which has an SI unit of m/s.

From the speed tests carried out on a toy car, the speed of trial 1 is:

Distance= 10 meters

Time= 5 seconds

Therefore trial one speed is 10/5= 2m/s

While the speed of trial 2 is:

Distance= 40meters

Time= 20 seconds

Therefore trial 2 speed is 40/ 20= 2mls

Average speed of the toy car during the two trials is: Sum of both both speeds divided by total number of trials.

Therefore: 2 m/s + 2m/s / 2= 2m/s

From the calculation, the average speed of the toy car during the two trials is 2m/s.

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Mercury has a density of 13.6 g/cm3 which of these materials will float in mercury
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