Problem 6.64 sace trig t onta Foe-tT is exerted on the object. At t .pdf
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Problem 6.64 sace trig t onta Foe-t/T is exerted on the object. At t 0, an object of mass m is at rest at z = 0 on a horizontal, frictionless surface. Starting at t = 0, a horizontal force Solution The force acting on the particle is given as Foe-t/T We know that acceleration = Force / mass Hence, acceleration = a(t) = (Fo/m)e-t/T Further, for any motion, we know that dv /dt = a(t) Rearrganging the terms, we get: dv = a(t) dt or dv = (Fo/m)e-t/T dt We will have to integrate the above relation to get the velocity at any time t Part A: Hence, V = -(FoT/m)[e-t/T - 1] = (FoT/m)[1 - e-t/T] Part B: For the above relation of V, we need to find the value of V for t tending to infinity. For t tending to infinity, e-t/T will tend to zero. Hence, Velocity after a very long time = (FoT/m) NOTE: For questions involving force or acceleration dependent on time, we would need to employ dv/dt = a(t) to determine the relation for dV which can then be integrated to obtain V at any point. Plus, similar relation as ds/dt = v(t) can be used in case displacement is to be determined..
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![Problem 6.64 sace trig t onta Foe-t/T is exerted on the object. At t 0, an object of mass m is at
rest at z = 0 on a horizontal, frictionless surface. Starting at t = 0, a horizontal force
Solution
The force acting on the particle is given as Foe-t/T
We know that acceleration = Force / mass
Hence, acceleration = a(t) = (Fo/m)e-t/T
Further, for any motion, we know that dv /dt = a(t)
Rearrganging the terms, we get:
dv = a(t) dt
or dv = (Fo/m)e-t/T dt
We will have to integrate the above relation to get the velocity at any time t
Part A: Hence, V = -(FoT/m)[e-t/T - 1] = (FoT/m)[1 - e-t/T]
Part B:
For the above relation of V, we need to find the value of V for t tending to infinity. For t tending
to infinity, e-t/T will tend to zero.
Hence, Velocity after a very long time = (FoT/m)
NOTE: For questions involving force or acceleration dependent on time, we would need to
employ dv/dt = a(t) to determine the relation for dV which can then be integrated to obtain V at
any point. Plus, similar relation as
ds/dt = v(t) can be used in case displacement is to be determined.](https://image.slidesharecdn.com/problem6-230704004255-2ccefb8c/85/Problem-6-64-sace-trig-t-onta-Foe-tT-is-exerted-on-the-object-At-t-pdf-1-320.jpg)
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are hung from the balloon such that the total mass of helium + balloon + weights is m Assume
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Gas equation PV = nRT
As the pressure P is constant
P dV/dt = nR dT/dt
dV/dt =nR/P dT/dt
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dV/dt = (V0/T0) dT/dt
upward thrust on the ballon
F = Vg – mg
Differentiate with t , we have
dF/dt = gdV/dt
initial the balloon is at rest hence
V0 g – mg = 0 hence m = V0
mda/dt = gdV/dt
= g*(V0/T0)* dT/dt
da/dt = g/T0 * dT/dt
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da/dt = (1/T0)dT/dt
integrating it
a(t) = T(t)/T0
given T(t) = T0(2 - 1/t+1)
a(t) = 2 – 1/t+1
dv(t)/dt = 2 – 1/t+1
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I need help answering these: Summarize Madison’s central arguments in Federalist Paper 10 and
Federalist Paper 51 and Summarize Henry’s central arguments in his speech against ratification
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nature, power, and the best way to govern society and Were there points made by either author
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Answer
James Madison, Jr. (March 16, [O.S. March 5] 1751 – June 28, 1836) was an American
statesman, political theorist. He was the fourth President of the United States (1809–17). He is
hailed as the \"Father of the Constitution\" for being instrumental in the drafting of the U.S.
Constitution and as the key champion and author of the Bill of Rights. He served as a politician
much of his adult life.
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unequal distribution of property, said Madison:
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manufacturing interest, a mercantile interest, a monied interest, with many lesser interests, grow
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I need help answering these: Summarize Madison’s central arguments in Federalist Paper 10 and
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Solution
The main function of the microcontroller is to record the time measurement from
the time-measuring unit, average the time measurements and calculate the distance. After the
distance is calculated, the data is transmitted to a PC. The microcontroller sends the signals to
start the counter for the time measurement unit and to send the laser light pulse. Also, the
microcontroller is used to initiate and set the parameters of the time measurement unit (speed,
mode, resolution, etc.) After the time measurement unit calculates the time, the microcontroller
reads and stores the time information. At least fifty time measurements are taken from each
distance to be measured. The more samples taken the most accurate the results are, but the more
time needed to obtain the distance measurement.
Once the microcontroller has obtained the values for the time and computes their
average, it calculates the distance value and transmits it to a PC using USART interface. Each
distance calculation should take less than 20ms. This time depends on the number of time
measurements taken and the duty factor of the pulse laser diode Laser Diode Driver
This section outlines the function of the laser driver. The main function of this driver is
to provide fast, high current pulses to drive the PLD. The PLD is operated in a short pulse mode
in order to achieve high peak powers with fast rise and fall times
The amount of current generated by the driver must be limited not to exceed the
maximum forward current of the PLD. In order to maximize the optical power of the PLD, a
collimating lens is used to minimize the divergence of the laser beam.
Receiving Channel Hardware
A small fraction of the light beam emitted by the PLD is received by an optical receiver and
focus
on the APD which photo-electrically convert the pulse of light received. The small pulse of
current
generated by the APD is converted into a TTL voltage level signal using a two-stage
transimpedance
amplifier. This voltage signal serves as the STOP signal for the time counter.
To measure the time of flight of the emitted pulsed of light, an ultra-fast counter as a TDC is
used.
TDCs are used to measure the time intervals between two events with a resolution of less than
one nanosecond. The accuracy of a pulsed TOF laser radar depends critically on the
performance of its
time measurement unit. Therefore, a high resolution and a high speed TDC is needed to
improve the system performance..
High Voltage Power Supply
To reach the proper gain and responsivity of the APD, a high voltage is used to reverse
bias the APD. This high voltage is generated and stabilized using a high voltage DC-DC
converter
which provides up to 400V output from a 5V input. The high voltage DC-DC converter must
provide a low voltage noise and low voltage ripple. Increasing the v.
5. Evaluate the following integral (t 2)cos Tut4)dt SolutionTh.pdf
5. Evaluate the following integral (t 2)cos Tut/4)dt
Solution
The Integral Calculator supports definite and indefinite integrals (antiderivatives) as well as
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For more about how to use the Integral Calculator, go to \"Help\" or take a look at the examples..
Which of the following types of viruses can infect both boot sectors.pdf
Which of the following types of viruses can infect both boot sectors and program files?
A. File infector
B. Multipartite
C. Polymorphic
D. System infector
Solution
B. A multipartite virus can infect both boot sectors and program files. Answer A is incorrect
because file infector viruses infect files. Answer C is incorrect because a polymorphic virus is
one that has the capability to change. Answer D is incorrect because system infector viruses
infect system files.
Which one is NOT typical of a ceramic material low melting point h.pdf
Which one is NOT typical of a ceramic material? low melting point high hardness high
stiffness ionic bonding
Solution
ans : A
Ceramic materials have high melting point
Ceramics usually have a combination of stronger bonds called ionic (occurs between a metal and
nonmetal and involves the attraction of opposite charges when electrons are transferred from the
metal to the nonmetal); and covalent (occurs between two nonmetals and involves sharing of
atoms). The strength of an ionic bond depends on the size of the charge on each ion and on the
radius of each ion.
These types of bonds result in high elastic modulus and hardness, high melting points, low
thermal expansion, and good chemical resistance. On the other hand, ceramics are also hard and
often brittle (unless the material is toughened by reinforcements or other means), which leads to
fracture..
4. Define communication security, information security, network secu.pdf
4. Define communication security, information security, network security, physical security with
example.
Solution
Communication Security
The protection resulting from all measures designed to deny unauthorized persons information of
value that might be derived from the possession and study of telecommunications, or to mislead
unauthorized persons in their interpretation of the results of such possession and study. Also
called COMSEC. Communications security includes: cryptosecurity, transmission security,
emission security, and physical security of communications security materials and information.
a. cryptosecurity--The component of communications security that results from the provision of
technically sound cryptosystems and their proper use. b. transmission security--The component
of communications security that results from all measures designed to protect transmissions from
interception and exploitation by means other than cryptanalysis. c. emission security--The
component of communications security that results from all measures taken to deny unauthorized
persons information of value that might be derived from intercept and analysis of compromising
emanations from crypto-equipment and telecommunications systems. d. physical security--The
component of communications security that results from all physical measures necessary to
safeguard classified equipment, material, and documents from access thereto or observation
thereof by unauthorized persons.
Physical Security
Physical security is the protection of personnel, hardware, software, networks and data from
physical actions and events that could cause serious loss or damage to an enterprise, agency or
institution. This includes protection from fire, flood, natural disasters, burglary, theft, vandalism
and terrorism.
Physical security has three important components: access control, surveillance and testing.
Obstacles should be placed in the way of potential attackers and physical sites should be
hardened against accidents, attacks or environmental disasters. Such hardening measures include
fencing, locks, access control cards, biometric access control systems and fire suppression
systems. Second, physical locations should be monitored using surveillance cameras and
notification systems, such as intrusion detection sensors, heat sensors and smoke detectors.
Third, disaster recovery policies and procedures should be tested on a regular basis to ensure
safety and to reduce the time it takes to recover from disruptive man-made or natural disasters.
Information Security
Information security (infosec) is a set of strategies for managing the processes, tools and policies
necessary to prevent, detect, document and counter threats to digital and non-digital information.
Infosec responsibilities include establishing a set of business processes that will protect
information assets regardless of how the information is formatted or whether it is in transit, is
being processed or is at rest in storage.
What ethical concerns do anthropologists confrontSolutionRace.pdf
What ethical concerns do anthropologists confront?
Solution
Race has little biological activity because humans have little actual genetic variation but have
superficial differences that we can observe mainly gathered by anthropologists. According to
American Anthropological Association’s Code of Ethics, the ethical concerns do anthropologists
have \"consultation of the maker who is the first user of anthropological object with his/her
ethnic race group in the society then only it is essential to display in the museums or exhibitions.
Therefore, it is essential to follow ethical aspects when describing these objects in public
presentation. Any genetic aspects of the objects must be kept under confidentiality under
government regulations.
What is the general location of the three different types of amino a.pdf
What is the general location of the three different types of amino acids in the typical soluble
protein?
In the typical nonsoluble membrane protein?
Solution
Aminoacids, the monomeric units that link together to form proteins, have a standard structure.
The carbon atom of each amino acid is bonded to four various compound groups and ergo is
asymmetric. The side chain have R group. Aminoacids could be classified into a few distinct
categories based primarily on their solubility in water, which can be influenced by the polarity of
their area chains. Proteins with polar side groups tend to be on the surface of proteins; by
connecting with water, they make proteins soluble in aqueous solutions. In comparison, amino
acids with nonpolar side groups avoid water and aggregate to make the water insoluble core of
proteins. The polarity of amino acid side chains thus is one of the forces responsible for shaping
the final three-dimensional structure of proteins. Hydrophilic or water-soluble, amino acids have
ionized or polar area chains. Hydrophobic amino acids have aliphatic side organizations, which
are insoluble or only slightly soluble in water..
3 Suppose V is finite-dimensional and v element of V with v is not eq.pdf
3 Suppose V is finite-dimensional and v element of V with v is not equals to 0. Prove that there
exists phi element of V? such that phi(v) = 1.
Solution
As V is finite dimensional, and non zero there exists v\' such that v *v\' =1
(since non zero elements in finite dimensional vector space have multiplicative inverse.)
Hence there exists phi in V\' such that phi(v) =1.
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