Those stitches are what "chews" into
the wind when you like to throw a breaking ball. Additionally, a knuckleball
that barely spins eats at the wind using the stitches on the ball and this
enables it to drop, sail or rise.
<span>In short, the stitches makes the ball air
resistant or cut into air making it faster.</span>
Answer:
The centripetal acceleration of the ball is 571.4m/s²
Explanation:
What is centripetal acceleration? Centripetal acceleration is the property of the motion of a body around a circular path. The acceleration is directed radially toward the centre of the circle and has a magnitude equal to the square of the body's speed along the curve divided by the distance from the centre of the circle to the moving body.
ac = v²/r
ac = centripetal acceleration
v = velocity
r = radius
Given data
v= 20m/s
r=0.7m
Substituting our data into the expression for centripetal acceleration we have
ac= 20²/0.7
ac=400/0.1
ac= 571.4.m/s²
A person's weight will be greater on Jupiter than on earth
Answer:
The answer is A
Explanation:
Density basically shows the amount of mass per volume of something. You can easily find Density with the equation D=m/v
D= Density
m= mass
v= volume
B.
The child is too old to be gaining something from the screen time.