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The following data are given for a certain rocket unit: thrust, 8896 N; propellant consumption, 3.867 kg/sec; velocity of vehicle, 400 m/sec; energy content of propellant, 6.911 MJ/kg. Assume 100% combustion efficiency. Determine
(a) the effective velocity;
(b) the kinetic jet energy rate per unit flow of propellant;
(c) the internal efficiency;
(d) the propulsive efficiency;
(e) the overall efficiency;
(f) the specific impulse;
(g) the specific propellant consumption.
Why did the company issue a press release? Wouldn't most businesses want to keep such a huge loss quiet?
Water enters at 0.5 kg/s and 15°C and exits the exchanger at 48°C. Determine the required surface area and the rate of steam condensation.
Describe the elements and purpose of the postproject review process.
Cryptography transforms security problem into key management problems. That is to say, to use encryption, digital signatures, or message authentication codes(MAC), the parties involved have to hold the 'right' cryptographic keys. The following 2 w..
The parameters mac and angle are used to specify which MAC address and angle are to be selected from the data for smoothing and plotting.
Write a program to scan 2 integer numbers from user, then check for below conditions: a). If both the numbers are equal, print a message "Both numbers are equal".
A major design consideration is how to organize the collection of free lists, which are distinguished by the length of the strings. Essentially, what is needed is a dictionary of free lists, organized by string lengths.
A mobile is moving at a speed of 100 km/h. The transmitted frequency is 900 MHz while the signal bandwidth is 300 kHz. Is the channel slow or fast?
Make a list of information security metrics that could be collected for a small internet commerce company with ten employees.
1. Why are financial audits more publicized than security audits? Should it be the other way around? 2. Discuss how the expertise of the practitioners and researchers (computer scientists, engineers, mathematicians) may affect IS integration.
Assess the reliability of data gathered via paid Internet users. Describe and assess the evaluation method being used by the testing company, i.e., nonvisual and verbal recording of browser activities and tester's vocal comments.
Display an appropriate message comparing the month's expenses to the budget.
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