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Determine the exact simple interest of 5,000 pesos for the period from jan. 15 to Nove. 28,1992, if the rate of interest is 22%
Discuss five technologies applied in water resources development and Environmental Management.
Air is used as a working substance in a given internal combustion engine, which is
supplied with heat at a constant volume. Based on the data, calculate the following:
1)Pressure and temperature of the ending of isentropic expansion.
2)Pressure rise rate
3)Thermal efficiency of the cycle
4)The work of the cycle
5.The average pressure of the cycle
Givens:
k=1.4
r=10
T 1 =285 K
T 3 =2274 K
p 1 =1.013 bar
v 1 =0.5 m 3 /kg
Determine the impulse response of the following IIR system:
y[n] + y[n - 1] = x[n] - 2x * [n - 1]
Determine the impulse response h of the following FIR system:
y[n] = x[n] + 1/2 x[n - 1] + 2x [n - 2] + 4x [n - 3] - x[n - 5]
Explain and justify how the existing technology can be used to improve one of the systems you chose for Task 1. Specify in terms of electrical principles, how you suggested improvement work.
This provides evidence for D2
Task 1
Prepare and deliver a presentation on two applications using electrical energy chosen from the list below:
- intelligent street lighting systems,
- automated processes and robotics in manufacturing,
- automated rail transport systems,
- electric cars,
- MRI scanners and operating theatre uninterruptible power supply (UPS),
- solar powered space travel
Your presentation should include an explanation (in terms of electrical or electronic principles) how they use two of the following:
- Electromagnetic effects
- Sensors (photodiode, LED, position detectors, Hall effect, etc.)
- Computer control (including PLA (programmable logic arrays)
- Battery technologies
3.2 A single phase 11 kV line with a length of 15 km is to transmit 500 kVA. The inductive reactance of the line is 0-5 km and the resistance is 0-3 2/km. Calculate the efficiency and regulation of the line for 0-8 lagging power factor.
A deep groove ball bearing has dynamic capacity of 2020 N and is to operate on the
following work cycle.
Radial load of 5800 N at 200 rpm for 25% of the time
Radial load of 8900 N at 500 rpm for 20% of the time
Radial load of 3500 N at 400 rpm for remaining time
Assuming the lads are steady and the inner race rotates, find the expected average
life of the bearing in hours.
A light cable with negligible weight is suspended between two points spaced 480 m apart
horizontally with the right support 42 m higher than the left. Five vertical gravity
loads of 753, 2899, 5322, 1780 and 2130 kN (from left to right) centered
between the supports and spaced 80 m apart horizontally are applied to the cable. If the
largest sag is 56 m, calculate
