As the ball is moving in air as well as we have to neglect the friction force on it
So we can say that ball is having only one force on it that is gravitational force
So the force on the ball must have to be represented by gravitational force and that must be vertically downwards
So the correct FBD will contain only one force and that force must be vertically downwards
So here correct answer must be
<em>Diagram A shows a box with a downward arrow. </em>
Answer:
observe o gráfico abaixo que mostra o número de internação em um hospital no município no período de 1960
Answer: Aplitude
Explanation: Loudness depends on the amplitude,or height, of sound waves. The greater the amplitude, the louder the sound perceived. Amplitude is measured in decibels.
Answer:
a) It reduces the kinetic energy loss of the stunt person.
Answer:The objects in order from least to greatest potential energy:
3<1<4<2
Explanation:
1. Potential energy of a 15-kilogram stone found at a height of 3 meters:

2. Potential energy 10 kilograms of water stored at a height of 9 meters:

3. Potential energy 1-kilogram ball located 20 meters in the air:

4. Potential energy box of books weighing 25 kilograms placed on a shelf 2 meters high:

The objects in order from least to greatest potential energy:
3<1<4<2