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
=> ![I_1 = [0.145 * 45] - [0.145 * -53]](https://tex.z-dn.net/?f=I_1%20%3D%20%20%5B0.145%20%2A%20%2045%5D%20%20-%20%5B0.145%20%2A%20-53%5D)
=>
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
=> 
=>
Answer:February 29 is a date that usually occurs every four years, and is called leap day. This day is added to the calendar in leap years as a corrective measure, because the Earth does not orbit the sun in precisely 365 days.
Explanation: brainlest plz
<span>In general the route that follows the 1100-m-high alpe d'huez mountain stage takes anywhere from four to six hours in athletes from around the world. A beginner would probably take 8 hours or so. World records were recently broken with a time just under three hours. The most friction for cyclist is the competition itself.</span>
Answer:
144 watt
Explanation:
resistance, R = 100 ohm
L = 4 mH
C = 100 micro farad
At resonance, the impedance is equal to R
Z = R
Vrms = 120 V
Irms = Vrms / R = 120 / 100 = 1.2 A
Power is given by
P = Vrms x Irms x CosФ
Where, CosФ is called power factor
At resonance, CosФ = 1
Power, P = Irms x Vrms
P = 1.2 x 120 x 1
P = 144 Watt.
Thus, the power is 144 watt.
Solve the following word problems.
1. The ratio of red marbles and blue marbles that Carlo has is 8: 3. When he
exchanged 35 red marbles for 20 blue marbles from his brother, he was left with
equal number of red and blue marbles.
How many red and blue marbles did he have at the beginning
How many red and blue marbles did he have now
