Answer: 384,300,000 m
Explanation:
Speed is mathematically expressed as:
Where:
is the speed of light
is the distance traveled
since is the time it takes to the pulse to go the moon and return.
Finding :
Finally:
Solution :
Given :
L = 1 in
d = 0.75 in
D = 1 in
Fillet radius, r = 0.063 in
We know that :
MPa
= 130 MPa
Therefore, the stress concentration factor is :
= 1.157922
Answer:Racquet force is twice of Player force
Explanation:
Given
ball arrives at a speed of
ball returned with speed of
average Force imparted by racquet on the ball is given by
where
time of contact of ball with racquet
When it land on the player hand its final velocity becomes zero and time of contact is same as of racquet
From 1 and 2 we get
Hence the magnitude of Force by racquet is twice the Force by player