Answer:
C) The acceleration is downward during the entire time the ball is in the air.
Explanation:
If we neglect air resistance, there is only one force acting on the ball, which is the force of gravity.
The magnitude of the force of gravity is
F = mg
where m is the mass of the ball and g is the acceleration of gravity. According to Newton's second law, therefore the acceleration of the ball during the entire motion is
So, it is equal to the acceleration of gravity () and in the same direction (downward). Since this force is constant, then the acceleration is the same during the entire motion, therefore the correct answer is
C) The acceleration is downward during the entire time the ball is in the air.
By a process called osmosis
Your answer is C. Dark Matter.
Answer:
The frequency what Steve will hear is option a) f'≅ 11kHz
Explanation:
f= 10 kHz
v= 340 m/s
vf= 30 m/s
vo= 0
f'= f * (v/ v- vf)
f'=10.96 kHz ≅ 11 kHz
Answer:
If the net force on an object is zero, the momentum of the object will not change
Explanation: If the net force on an object is zero, the momentum of the object will not change. If a non-zero net force acts on the object, the magnitude of its momentum could decrease, increase, or remain constant