An example helps clarify the difference between an analysis, a deter- mination and ... departments analyze samples of water to determine the concentration of ... moles of Cu2+, and cylinder 2 contains 20 mL, or 2.0 × 10.
Answer:
W = 12.568rads
V = 1.8852m/s
Explanation:
Data:
r = 15cm = 0.15m
t = 10s
Revolutions = 20
Frequency (F) = number revolutions/ time take complete it
F = 20 / 10 = 2Hz
Angular velocity (w) = 2 * 3.142 * F
Note: 3.142 = value of pi
W = 2*3.142*2 = 12.568 rads
Linear velocity (v) = w*r
V = 12.568*0.15 = 1.8852m/s
Complete Question
The complete question is shown on the first uploaded image
Answer:
a
b
c
Explanation:
Considering the first question
From the question we are told that
The force produced is
The duration of the punch is
Generally the impulse delivered is mathematically represented as
=>
=>
Considering the second question
The approaching velocity of the ball is
The leaving velocity of the ball is
The mass of the ball is
Generally the magnitude of the impulse delivered is mathematically represented as
=>
=>
Considering the third question
The duration of the impact of the bat is
Generally the average force exerted by the bat is mathematically represented as
=>
=>
Power = change in work/change in time
P = 600 joules/ 4 seconds
P= 150 watts
hope this helps :)