consider the velocity towards the pitcher as positive
m = mass of the baseball = 0.145 kg
v₀ = initial velocity of the baseball = - 39 m/s
v = final velocity of the baseball = 52 m/s
t = time of contact = 3 x 10⁻³ sec
F = average force between bat and ball
Using impulse-change in momentum equation
F t = m (v - v₀ )
F (3 x 10⁻³) = (0.145) (52 - (- 39))
F = 4398.33 N
Answer:
A hypothesis is a suggested solution for an unexplained occurrence that does not fit into current accepted scientific theory.For a hypothesis to be termed a scientific hypothesis, it has to be something that can be supported or refuted through carefully crafted experimentation or observation.
Answer:
The conditioned stimulus is the Luther Vandross
Explanation:
A conditioned stimulus is a stimulus that triggers a response in an organism that has been conditioned (or learned). In this case Jada's husband putting the song (conditioned stimulus) on every time they are sexually intimate has caused her response to the stimulus to be becoming aroused.
Answer:
C and D
Explanation:
Charge on right = +0.001 C
Charge on left = 1000 C
Charge held in between = -1C
Ratio between right and left charge:
Which shows charge on left exerts 1,000,000 times more force then charge on right
Charge on left is 1000 times greater in magnitude than charge held between and charge held between is 1000 times greater in magnitude than charge on right. So the magnitude of the force on the charge you are holding would be the same if it were +1 C instead of −1 C.
Answer:
During high fever a wet cloth is kept on the forehead of a person to decrease the temperature of body. ... When the wet cloth is placed on the forehead, water in wet cloth starts to evaporate and it starts to absorb a lot of heat from our body. Hence it is used to decrease the temperature of body.
