Its a Net force of 21.41404
For most healthy adults, the Department of Health and Human Services recommends these exercise guidelines: Aerobic activity. Get at least 150 minutes a week of moderate aerobic activity or 75 minutes a week of vigorous aerobic activity. You also can do a combination of moderate and vigorous activity.
Answer:
The temperature rise is given as 21.35 K
Explanation:
The explanation is shown on the first second and third uploaded image
Answer:Mechanical ventilation system
Explanation:
Ventilation can be increased to safe levels by using mechanical ventilation system to bring in more fresh air.
There are many ways to provide ventilation for example
- providing ventilation fans in kitchens and bathrooms to remove allergens,moisture.
- A duct should be provided such that it provides fresh air to different rooms and provision should also be made to remove the poor air inside home.