Answer:
Problem 1 (10 points) In the first homework you were instructed to design the mechanical components of an oscillating compact disc reader. Since you did such a good job in your design, the company decided to work with you in their latest Blue-ray readers, as well. However, this time the task is that once the user hits eject button, the motor that spins the disc slows down from 2000 rpm to 300 rpm and at 300 rpm a passive torsional spring-damper mechanism engages to decelerate and stop the disc. Here, your task is to design this spring-damper system such that the disc comes to rest without any oscillations. The rotational inertia of the disc (J) is 2.5 x 10-5kg m² and the torsional spring constant (k) is 5 × 10¬³NM. Calculate the critical damping coefficient cc for the system. choice of the damper, bear in mind that a good engineer stays at least a factor of In your 2 away from the danger zone (i.e., oscillations in this case). Use the Runge Kutta method to simulate the time dependent angular position of the disc, using the value of damping coefficient (c) that calculated. you Figure 1: Blue-ray disc and torsional spring-damper system.
Answer:
# Python Program to Print
# all subsets of given size of a set
import itertools
def findsubsets(s, n):
return list(itertools.combinations(s, n))
# Driver Code
s = {1, 2, 3}
n = 2
print(findsubsets(s, n))
-----------------------------------------------
# Python Program to Print
# all subsets of given size of a set
import itertools
# def findsubsets(s, n):
def findsubsets(s, n):
return [set(i) for i in itertools.combinations(s, n)]
# Driver Code
s = {1, 2, 3, 4}
n = 3
print(findsubsets(s, n))
-------------------------------------------------------------
# Python Program to Print
# all subsets of given size of a set
import itertools
from itertools import combinations, chain
def findsubsets(s, n):
return list(map(set, itertools.combinations(s, n)))
# Driver Code
s = {1, 2, 3}
n = 2
print(findsubsets(s, n))
Answer:
The oil reduced friction between the moving parts of the skateboard. ( A )
Explanation:
The oil reduced Friction between the moving parts of the skateboard and this is because the reduction in friction between moving parts causes an increase in speed.
Remy will oil the moving parts that connects the wheels of the skateboard to the Board, because this is where the most friction is found. the friction between the wheels and the ground cannot be affected by oiling the wheels
The term that describes the action of a qubit that moves from superposition to 1 or 0 after measurement is Collapse.
<h3>What is collapse?</h3>
Collapse is the process that lead to the movement of qubit from a a state of superposition to 1 or 0 after measurements which make it to remain in that state.
Therefore, The term that describes the action of a qubit that moves from superposition to 1 or 0 after measurement is Collapse.
Learn more about collapse below.
brainly.com/question/23532927
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A specific part of the population is a subgroup.
