Answer:
True
Explanation:
Pre-questioning may help a reader focus on information s/he hopes to find in the reading selection.
Answer:
Technician A
Explanation:
Technician A is correct because, the hand force required is not supposed and even should not exceed 80 lb.
On the other hand, the foot force limit is even higher at 100 lb. Thus, the required foot force break should not exceed 100 lb. We are given 80 lb in the question, which is quite less than 100 lb. It could exceed 80, but must not exceed 100. Thus only Technician A is correct among them both.
Answer:
The required frequency = 0.442 Hz
Explanation:
Frequency
where;
Then;
However;
and;
mass
where;
Then;
replacing the values;
Answer:
a)
b)
Explanation:
From the exercise we know initial velocity, initial height
º
a) The range of the stone is defined by how far does it goes. From the theory of <u><em>free falling objects</em></u>, we have:
The stone strike the water at y=0
Solving for t, using the quadratic formula
or
Since time can't be negative, the answer is t=3.06s
Now, we can calculate the <u>range of the stone</u>
b) We can calculate the <u>velocity</u> were the stone strike the water using the following formula
The negative sign indicates that the stone is going down
If an object<span> is slowing down, then its </span>acceleration<span> is in the opposite direction of its motion. ... In Example A, the </span>object<span> is moving in the positive direction (i.e., has a positive </span>velocity<span>) and is speeding up. When an </span>object<span> is speeding up, the </span>acceleration<span> is in the same direction as the </span>velocity<span>.</span>