WHICH WEATHER SITUATION WILL BE THE LEAST COMFORTABLE FOR A LONG DISTANCE RUNNER?

A.20* CELCIUS (68f) WITH RELATIVE
HUMIDITY OF 40%

B. 20* CELCIUS (68f) WITH RELATIVE
HUMIDITY OF 90%

C.25* CELCIUS (77 f) WITH RELATIVE
HUMIDITY OF 90%

D.35* CELCIUS (95 f) WITH RELATIVE
HUMIDITY OF 40%

E. 35* CELCIUS (95 f) WITH RELATIVE
HUMIDITY OF 90%

HELP I DON'T GET IT ?

Joshua, when you type in all-caps, two things happen:

**it's harder to read, and

**it's the online equivalent to SHOUTING.

Please just type in regular mode, not with the Caps Lock feature turned on. Thanks.

=)

Thank you for using the Jiskha Homework Help Forum. First of all, please do not use capital letters. That, in computer language, is like SHOUTING and therefore impolite. It is also far more difficult to read.

Here's what you need to know: 1 degree Celsius (temperature) equals 33.8 degrees in Fahrenheit. Therefore 20 Celsius is equivalent to 68 degrees Fahrenheit but 35 Celsius corresponds to 98 degrees Fahrenheit.

A runner would prefer cooler weather and the hotter weather would wear one out sooner. Furthermore, high humidity is bad for a runner, who would prefer less humidity.

Now, what do you select? Give us your answer and we can verify if you have selected the correct answer!

Sra

please do not use caps, as it makes it harder to read and it comes across as shouting. Thanks.

To determine which weather situation would be the least comfortable for a long distance runner, we need to consider both temperature and relative humidity. Running can be more challenging in hot and humid conditions as it can increase the body's heat stress and make it harder to cool down through sweat evaporation. Let's evaluate each weather situation:

A. 20°C (68°F) with a relative humidity of 40%: While the temperature is moderate, the relative humidity is relatively low, which means the air is not overly saturated with moisture. This weather situation would generally be more comfortable for a long distance runner compared to other options.

B. 20°C (68°F) with a relative humidity of 90%: In this case, the relative humidity is high, which indicates that there is a significant amount of moisture in the air. The combination of heat and high humidity can make it feel hotter and more uncomfortable for a runner. This weather situation might pose a challenge due to the increased difficulty in cooling down through sweating.

C. 25°C (77°F) with a relative humidity of 90%: Similar to the previous scenario, the high temperature combined with high humidity increases heat stress and reduces evaporative cooling. This weather situation is likely to be less comfortable for a long distance runner compared to the first option.

D. 35°C (95°F) with a relative humidity of 40%: The temperature here is considerably hotter, which can significantly increase the body's heat stress during physical activity. However, the lower relative humidity means there is less moisture in the air. While it will still be challenging for a long distance runner, the lack of high humidity may make it slightly more comfortable than the options with high humidity.

E. 35°C (95°F) with a relative humidity of 90%: This weather situation combines high temperature and high humidity, which can create very uncomfortable and potentially dangerous conditions for a long distance runner. The body's ability to cool down through sweating will be severely hindered in such high heat and humidity levels.

Based on the evaluation, option E, 35°C (95°F) with a relative humidity of 90%, is likely to be the least comfortable for a long distance runner. The combination of high temperature and high humidity places the body under significant heat stress, making it more challenging to regulate body temperature effectively.