Answer:
Work = 92,704.5 joules
Power= 154.5 watts
Explanation:
Given that:
Time= 10 minutes
treadmill grade = 15% = 0.15
horizontal speed = 90 meters/min
subjects weight = 70 kg
To calculate the total work, we have;
work = force × distance
force = mass × acceleration
= 70 × 9.81
= 686.7N
Also, distance = speed × time × fractional treadmill grade
∴ distance = 90 meters/min × 10 min × 0.15 (treadmill grade)
Total work can therefore be calculated as:
work = force × distance
work = 686.7N × (90 meters/min × 10 min × 0.15 (treadmill grade) )
Work = 92,704.5 N/m
Work = 92,704.5 joules
To calculate the power, we have;
Power = workdone/time
Power = 92,704.5 joules/600 seconds
Power = 154.5 joules/second
Power= 154.5 watts
Answer:
The answer is b hope this helps
A wild life park is an area where animals are allowed to roam around freely as if they are in the wild.
<h3>What is a wildlife park?</h3>
A wild life park is an area where animals are allowed to roam around freely as if they are in the wild. The animals are not caged because the system aims to imitate the natural habitat of the animals.
This approach can help conserve endangered species and at the same time retain the same features of keeping the animals in the wild which is a huge plus for this system.
However, the issues with poaching can ruin the usefulness of this approach in the future. This limitation can be addressed by providing adequate security in the wildlife park as well as further dependence on technology to prevent poaching.
Learn more about wildlife park: brainly.com/question/25169144
Answer:
The correct answer is option B) high specific heat.
Explanation:
Water is present all over the globe and covered the whole earth. The specific heat of the water is the highest of any other liquid. Specific heat is the amount of heat, must be absorbed or removed by the one gram of a substance to 1 degree Celsius change in temperature.
The specific heat of the water plays an important role as it can absorb a lot of heat without a significant increase in the temperature.
Thus, the correct answer is option - B) high specific heat.
Answer:
Water bath is used maintain temperature.
Explanation:
Water bath is laboratory container (equipment) filled with heated water and is used in conducting experiments that requires the maintainance of a certain temperature.
Digestive enzymes usually perform their functions at temperature of 37°C (optimal temperature) and they will need the use of water bath to maintain it. The body ranges at this temperature, thus 37°C will affect the activity of enzymes found in digestive tract. They will be more active in catalyzing the digestion reaction of carbohydrates and fats as this is their optimal temperature in the body.