To complete the marathon of 26 miles in 4.5 hours, the average speed required is 9.3 kilometers per hour.
To find the average speed required to complete a marathon of 26 miles in 4.5 hours, we can use the formula:
average speed = total distance / total time
The total distance of the marathon is 26 miles, which is equivalent to 41.84 kilometers (1 mile is approximately 1.60934 kilometers).
The total time we want to complete the marathon in is 4.5 hours, which is equivalent to 4.5 × 60 = 270 minutes.
Converting the units of distance and time to kilometers and minutes respectively, we have:
average speed = 41.84 km / 270 min
Simplifying this expression, we get:
average speed = 0.155 km/min
To convert the units to kilometers per hour, we can multiply by 60, since there are 60 minutes in an hour:
average speed = 0.155 km/min × 60 min/h = 9.3 km/h
Learn more about average speed, here:
#SPJ2
Similar to Earth, the Sun rotates around an axis that passes through its center. But unlike Earth, the Sun rotates faster at its center than at its poles. That’s because Earth is a solid mass, while the Sun is a gaseous globe. The Sun’s poles take about 34 days to rotate completely, and the equator takes about 26 days to complete one rotation. i need to choose one please help me!!! :P
The correct answer is:
That’s because Earth is a solid mass, while the Sun is a gaseous globe.
The explanation:
when the Earth's geosphere -- the solid part of the Earth made up of the core, the mantle and the crust -- is primarily composed of only four. These four are iron, oxygen, silicon and magnesium. These elements make up more than 90 percent of the Earth's mass.
The Sun is a huge, glowing sphere of hot gas. Most of this gas is hydrogen (about 70%) and helium (about 28%). Carbon, nitrogen and oxygen make up 1.5% and the other 0.5% is made up of small amounts of many other elements such as neon, iron, silicon, magnesium and sulfur.
Answer:
b
Explanation:
Answer:
What are your answer choices
Explanation:
As per the modern classificationsystem, the class, order, genus, species is arranged from least specific to most specific one. The correct option is C.
The term classification can refer to one or more of the following: the process of classifying the resulting set of classes the classification of elements into predefined classes Classifying, in its broadestsense, is a fundamental concept and a component of almost all activities.
In 1956, Herbert FaulknerCopeland (1902-1968) proposed the four kingdom classification.
Monera, Protista, Plantae, and Animalia were the four kingdoms. He classified unicellular organisms into two groups: the Monera kingdom and the Protista kingdom.
The classificationsystem provides a wealth of information about organism characteristics. Using scientific names as a shorthand method of describing a plant or animal can thus be beneficial.
Thus, the correct option is C.
For more details regarding biological classification, visit:
#SPJ2
Your question seems incomplete, the missing options are:
A) species, genus, family, order
B) phylum, class, genus, order
C) class, order, genus, species
D) phylum, order, species, family
t
what does v1 and v2 represent