Barriers to physical fitness and activity may be someone's health (they may have a disease that prevents them from exercising). Other than this, there really is no limit to whom can exercise.
Hope this helps!
Potential energy = (mass) x (gravity) x (height)
1 joule = (1,000 kg) x (9.8 m/s²) x (height)
Height = 1 joule / (9,800 newtons)
= 1/9800 meter
= 0.000102 meter
= 0.102 millimeter (rounded)
COMPLETE QUESTION:
Phileas is going on a hot air balloon ride. His height above the ground
after t minutes is a quadratic function of t.
He begins from a platform at a height of 76 meters.
The balloon reaches its maximum height after 30 minutes.
After 80 minutes, he finally lands (at a height of 0 meters)
(a) Give a function f(t) for Phileas’s height above the ground after t minutes.
Answer:
f(t) = (-76/160)t² + (9560/1600)t + 76
Explanation:
Clearly explained in the attachment below
Answer: The answer is electricity and magnetism.
Explanation: The atom's center, or nucleus, is positively charged and the electrons that whirl around this nucleus are negatively charged, so they attract each other. The reason the force is strong is because the atom is so small.