The amount a spring stretches varies directly as the weight of the object attracted to it. If an 8 ounce weight stretches a spri
1 answer:
Answer:
Weight of <u>12 ounces</u> will stretch spring of 15 centimeters.
Step-by-step explanation:
Given:
The amount a spring stretches varies directly as the weight of the object attracted to it.
An 8 ounce weight stretches a spring 10 centimeters.
Now, to get how much weight will stretch it is 15 centimeters.
According to question:
<em>A spring of 10 centimeters stretches a weight of 8 ounce.</em>
<em>Then a spring of 1 centimeter stretches a weight of = .</em>
<em>So, a spring of 15 centimetres stretches a weight of = .</em>
Therefore, weight of 12 ounces will stretch spring of 15 centimeters.
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Answer:
a. 11/5 pi; -9/5 pi
Step-by-step explanation:
Coterminal angles are those which have a common terminal side. For example 30° is coterminal with −330° and 390° (see figure).
From the example we can see that the following expressions must be fulfilled:
positive angle - reference angle = 360°
reference angle - negative angle = 360°
where positive angle is 390°, reference angle is 30° and negative angle is -330°. In this problem reference angle is pi/5. Also, we have to change 360° for its equivalent in radians, i. e., 2 pi. So,
positive angle - pi/5 = 2 pi
positive angle = 2 pi + pi/5
positive angle = 11/5 pi
pi/5 - negative angle = 2 pi
negative angle = pi/5 - 2 pi
negative angle = -9/5 pi
