Answer:
Frequency, f = 0.2 Hz
Explanation:
We have,
A baseball player throws 4 balls every 20 seconds.
It is required to find the frequency of the baseball.
Frequency of an object is defined as the number of times an event occurs. It is given by number of throws per unit time. It can be given by :
So, the frequency of his throw is 0.2 Hz.
Answer:
Significant Others
Explanation:
The relationship between Solomon and his coach is termed Significant Others.
George Herbert Mead used the words "Significant Others" in sociology to imply the individuals (friends, colleagues, boss, tutors, coach, etc.) that are the most significant or important in the wellbeing of an individual or self development of that individual.
In other words, they are individuals who have an important influence or play a formative role in shaping the behaviour of another
Net force = (mass) x (acceleration)
There are two forces acting on the barrel:
-- the force of gravity, downward;
-- the force of the rope, upward.
When these two forces are added together, their sum (the net force
on the barrel) causes the barrel to accelerate upward at 1.4 m/s² .
Net force = (Rope force) - (Grav force) = (mass) x (acceleration)
Grav force = 'weight' = (mass) x (grav) = (16 x 9.8) = 156.8 newtons
Net force = (mass x acceleration) = (16 x 1.4) = 22.4 newtons
Net force =
22.4 newtons = (Rope force) - (156.8 newtons)
Add 156.8 newtons to each side: Rope force = 22.4 + 156.8 = <em>179.2 newtons
</em>
To solve the problem it is necessary to apply the conservation equations for the moment, specifically for collision. In addition to that, the concepts of vector velocity are necessary, in which the components are obtained and if the total magnitude is necessary.
Conservation of Momentum equation is given by,
We need to find the speed 3, therefore by readjusting the equation we have,
Therefore the components of the velocity would be,