Answer:
8.59 rad/s
Explanation:
Given that:
A thin uniform cylindrical turntable radius = 2.7 m
with a mass (M) = 22 kg
initial angular speed (ω₁) = 12 rad/s
Mass of the clump of the clay (m) = 11 kg
Diameter (d) from the point of rotation = 1.7 m
We are to find the final angular velocity (ω₂) ,To do that; we apply the conservation of annular momentum; which is as follows:
L₁ = L₂
l₁ω₁ = l₂ω₂
( 0.5 × M × r²) × ω₁ = (0.5 × M × r² + md²) ω₂
Making ω₂ the subject of the formula ; we have:
Hence, the angular speed of the clay and turntable = 8.59 rad/s
The height of the plane delivering a food package to people stranded on an island is 722.2 m.
<h3>
Time of motion of the food package</h3>
The time taken for the food package to hit the ground level is calculated as follows;
X = vt
where;
- X is horizontal distance traveled by the food package
- v is horizontal distance
- t is time of motion
t = X/v
t = 789/65
t = 12.14 seconds
<h3>Height of the plane</h3>
h = ¹/₂gt²
where;
- h is height of fall of the food package which is height of the plane
- t is time of motion of food package
- g is acceleration due to gravity
h = (0.5)(9.8)(12.14²)
h = 722.2 m
Thus, the height of the plane delivering a food package to people stranded on an island is 722.2 m.
Learn more about height here: brainly.com/question/1739912
#SPJ1
Answer:
Option (A)
Explanation:
Deception is a word that suggests or implies that someone is deceived, or in simple terms, there is something hidden from a person's view. This "deception" denotes the very act of hiding, concealing the truth about something.
In the above-given passage, the writer uses in such a way that the sun rays, along with the clear sky are deceiving the people from the reality of the possibility of a storm coming from the west. The east sky which is clear along with the warm sun is acting as if they are in collaboration with each other in hiding the real threat of the advancing storm.
Thus, the word "deception" is referred to in the passage to try to show that there is no storm approaching.
Thus, the correct answer is option (A).
19.2 meters/second^2 would be the correct answer.
Try multiplying 3.2 meters/second^2 by 6 and you will receive the answer provided above. If you have any further questions, let me know!
