Question

Two drivers, Alison and Kevin, are participating in a race. Beginning from a standing start, they each proceed with a constant acceleration. Alison covers the last

1/11 of the distance in 9 seconds, whereas Kevin covers the last 1/9 of the distance in 11

seconds. Who wins and by how much time?

Answer #1

A tortoise and hare start from rest and have a race. As the
race begins, both accelerate forward. The hare accelerates
uniformly at a rate of 1.5 m/s2 for 4.2 seconds. It then continues
at a constant speed for 12.4 seconds, before getting tired and
slowing down with constant acceleration coming to rest 108 meters
from where it started. The tortoise accelerates uniformly for the
entire distance, finally catching the hare just as the hare comes
to a stop.
1)...

Two rather unequal cars are competing in a drag race. For
simplicity, let's assume that the accelerations of the cars are
constant. Car 1 has an acceleration of 3.7 m/s2, while
Car 2 has an acceleration of 6.3 m/s2. Car 2 gets off to
a late start, 1.1 seconds after Car 1.
At what time after Car 1 took off will it be overtaken by Car 2?
(in s)
A: 3.0
B: 3.8
C: 4.7
D: 5.9
E: 7.4
How...

Two waves traveling in opposite directions on a stretched rope
interfere to give the standing wave described by the following wave
function:
y(x,t) = 4 sin(2πx) cos(120πt),
where, y is in centimetres, x is in meters, and t is in seconds.
The rope is two meters long, L = 2 m, and is fixed at both
ends.
In terms of the oscillation period, T, at which of the following
times would all elements on the string have a zero vertical...

Draw the diagram on a neat paper with clear handwriting and
solve the problems. Don't forget to draw the diagram!
1.An airplane’s takeoff speed is 320 km/h. If its average
accelera-tion is 2.9 m/s2, how much time is it accelerating down
the run-way before it lifts off?
2.In a medical X-ray tube, electrons are accelerated to a
velocity of 108 m/s and then slammed into a tungsten target. As
they stop, the electrons’ rapid acceleration produces X rays. If
the...

Sweeten Company had no jobs in progress at the beginning of
March and no beginning inventories. It started only two jobs during
March—Job P and Job Q. Job P was completed and sold by the end of
March and Job Q was incomplete at the end of March. The company
uses a plantwide predetermined overhead rate based on direct
labor-hours. The following additional information is available for
the company as a whole and for Jobs P and Q (all data...

1. Dynamics and artificial gravity.
The space station has two thrusters pointed in opposite
directions. They operate by expelling propellant at high speed. The
effect is that there is a force of magnitude F0 on the
two ends of the space station in opposite directions, which causes
the entire object to start rotating. The thrusters will stop firing
when the artificial gravity created on the space station (described
below) reaches the required value.
Upward force, magnitude F0
Downward force, magnitude...

Procedures
Place two 150 mL Erlenmeyer flasks from the Containers
shelf on the workbench. Double-click on the flasks to label one
flask “A” and the other “B”. Obtain a 10 mL graduated cylinder and
a 50 mL graduated cylinder from the Containers shelf.
Place two constant temperature baths from the
Instruments shelf onto the workbench.
Set the temperature on each bath to 21.5
°C.
The contents of each flask will vary with each trial as
indicated in the table below....

Assessment
Identify the Variables!
In rotational kinematics - the variables are:
t = time, which is measured in s (for seconds)
θ = angle = what angle did the object turn thru, usually
measured radians
ωO = initial angular velocity = the rotational speed
of the object at the beginning of the problem, which is measured in
rad/s
ω = final angular velocity = the rotational speed of the object
at the end of the problem, which is measured in...

There are two reflective essays from MED students during
their third year internal medicine clerkship. One student sees each
connection to a patient as like the individual brush strokes of an
artist and the other sees gratitude in a patient with an incurable
illness and is moved to gratitude in her own life. (WORD COUNT
500)
Reflect on both essays and then choose one and describe
how the student grew from the experience.
Then explain what you learned as a...

3.When closing entries are made:Immersive Reader
(1 Point)
All ledger accounts are closed to start the new accounting
period.
All real accounts are closed but not the nominal
accounts.
All balance sheet accounts are closed.
All temporary accounts are closed but not the permanent
accounts.
All permanent accounts are closed but not the nominal
accounts.
4.A wholesaler is an intermediary that buys products from
manufacturers or other wholesalers and sells them to
consumers.Immersive Reader
(1 Point)
True
False
5.The Merchandise...

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