In an emergency stop, a shoulder- strap seat belt holds a 60 kg passenger firmly in place. The car was initially traveling at 30 m/s and came to a stop in 6.0 seconds along a straight, level road. What was the average force applied to the passenger by the seatbelt?
In: Physics
def compare_elevations_within_row(elevation_map:
List[List[int]], map_row: int, level: int) -> List[int]:
"""Return a new list containing the three counts: the number
of
elevations from row number map_row of elevation map
elevation_map
that are less than, equal to, and greater than elevation level.
Precondition: elevation_map is a valid elevation map.
0 <= map_row < len(elevation_map).
>>> compare_elevations_within_row(THREE_BY_THREE, 1,
5)
[1, 1, 1]
>>> compare_elevations_within_row(FOUR_BY_FOUR, 1,
2)
[0, 1, 3]
"""
for i in elevation_map[map_row]:
differences=[0,0,0]
if i<level:
differences[0] += 1
elif i==level:
differences[1] += 1
else:
differences[2] += 1
return differences
This was written in python, I am wondering why does the header of the function shows syntax error starting from List. (List[List[int]], map_row: int, level: int) -> List[int]:)these are all underedline
In: Computer Science
In: Economics
Assume the following for a paired-samples t test: N = 19, Mdifference = 13.19, s = 22.3. What is the 95 percent confidence interval for a two-tailed test?
| A. |
[8.07, 18.31] |
|
| B. |
[11.09, 15.29] |
|
| C. |
[–10.76, 10.76] |
|
| D. |
[2.44, 23.94] |
In: Math
Microeconomic question: Discuss relatively low level of maximum interest rates which banks are allowed to charge their customers.(200 words)
In: Economics
| Which of these statements is true? | |||||||||
|
| All of these explain a change in long-run aggregate supply EXCEPT: | |||||||||
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| In late 2015, Congressional House Speaker Paul Ryan helped pass a major budget bill signed by President Obama that eliminated many of the “sequester” provisions, or automatic spending cuts, that were implemented in 2013 after a significant political gridlock. Many economists applauded the elimination of the spending cuts because they felt the cuts increased the risk of another recession. Using the AD/AS model and what you know about the spending multiplier, explain why economists would come to this conclusion. | |||||||||
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| When the economy is hit with a supply shock, such as higher prices for energy, food, or raw materials, is this doubly disruptive and harmful to the economy? | |||||||||
|
In: Economics
QUESTION 5
Phoebe has gone to the local mobile phone store to purchase a new phone plan. She has no real intention of getting a new phone – the recent COVID-19 events have left her with no spare cash. She can afford a $40 a month plan at the moment on her budget.
QUESTION 6
Natalie has decided that she wants to build her own bicycle as a project to help her cope with the social isolation measures in place. She looks around on-line and decides to source her bicycle components from the famous bicycle parts store “Wally’s Private Parts”.
Natalie makes a special trip out to Wally’s (as it is colloquially known) to pick up the bike frame, wheels and handle bars. As she enters the store, she sees a helmet on display for $10. Because she has been searching on-line, she knows that this model helmet is worth at least $90.
She goes up to the counter and speaks with Kristin, the bike maintenance technician about the parts she is here to pick up. “Are you sure these handlebars are OK for the mountain biking I am looking to do?”
“I’m pretty sure,” says Kristin. “In fact, I’ll stress test them myself out the back before you go so that you can be sure.”
Just as she is about to go up to the counter a new customer, Ryan, enters the store. He grabs the last helmet on display and brusquely pushes in front of Natalie. “I’ll take the helmet – here’s my $10” he states.
Kristin, obviously annoyed at his behaviour, says “Oh, that’s a mistake. I’ve been meaning to change that sign for some time. Wally made a mistake when he made that sign - it’s meant to be $100 – I can’t sell it to you at that price.”
Ryan starts arguing for the next five minutes before leaving – without the helmet and very annoyed.
Kristin apologises to Natalie and goes out the back to get her parts. Unfortunately the argument with Ryan distracted her and she forgets to stress test the handle bars.
“Here you go,” she says. “Hope you enjoy the project and riding the finished product!”
Natalie goes home and carefully completes the project. On the first ride on a trail, the handlebars start coming loose and bending – they were not designed for such rough terrain. It causes Natalie to come off the bike, badly breaking her arm and she is off work for 4 weeks.
Write a memo to Wally the owner ofWally’s Private Parts outlining if the store is vicariously liable for negligence. To do this, your memo should apply the ILAC method, where possible, and it should cover:
You do NOT need to cover defences.
In: Operations Management
Price the following option using the binomial method. Show all work
Stock price = 10
Strike price = 15
Volatility = 0.4
T = 1
r = 0.3
Type : Put
In: Finance
In: Computer Science
Determine the magnitude of the force between two parallel wires.
Express your answer to two significant figures and include the appropriate units.
In: Physics
How many hours would be required to make a 3900 km trip across the United States if you average 100 km/h? ______h
At an average speed of 145 mph, how long would it take a race car to complete a 680 mile race? ____h
A certain car can accelerate from 0 to 60 mph in 7.5 s. What is the car's average acceleration in mph/s? _____ mph/s
You throw a ball straight up at 20 m/s. How many seconds elapse before it is traveling downward at 12 m/s? _____s
A rock is dropped into an abandoned mine and a splash is heard 8 s later. Assuming that it takes a negligible time for the sound to travel up the mine shaft, determine the depth of the shaft and how fast the rock was falling when it hit the water. depth of well ________ m velocity of rock __________ m/s
In: Physics
Using the following schema, write a SQL query to satisfy the question: What are the names of the suppliers of 'Pith_helmet' sold in a department managed by 'Andrew'?
Schema:
Sale (saleno, saleqty, itemno, dname)
Supplier (splno, splname)
Item (itemno, itemname, itemtype, itemcolor)
Department (deptname, deptfloor, deptphone, empno)
Delivery (delno, delqty, itemnum, dptname, splno)
Employee (empno, empfname, empsalary, departname, bossno)
In: Computer Science
When glutamate binds to it's ionotropic receptors, including __, it can also cause an __ in the post-synaptic neuron by letting __ into the cell.
a) AMPA; excitatory post-synaptic potential (EPSP); Ca++
b) NMDA; inhibitory post-synaptic potential (IPSP); Cl-
c) G-protein coupled receptors; inhibitory post-synaptic potential (IPSP); K+
d) Kainate; excitatory post-synaptic potential (EPSP); Na+
e) NMDA; excitatory post-synaptic potential (EPSP); Ca++
In: Biology
Question 2: Create a class Fract fraction with two private integer data members: num (Numerator) and den (denominator). write code for:
Part A) class declaration header file
Part b) constructor that validates input (prevent 0 on the denominator in a fraction simplified fraction that is not reduced, avoids negative denominators) with default arguments 0 and 1.
Part c)Two fractions with prototype Fract add (fract) and Fract multiply (fract) completing the usual addition and multiplication
Part d) Just all fractions by writing a short test driver that creates two fractions with the values 3/6 and ⅔ and prints there sum and product
C++ language
In: Computer Science
S2(n-1) / σ² is distributed X2(n-1) when ........?
In: Math