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Question: A heat exchanger is shown in Figure. The temperature measured by the sensor is to be controlled. Design four different control strategies to control this temperature and discuss the differences. Select the design that would give the best control performance, and discuss the reasons why
A concave mirror produces a virtual image that is seven times as tall as the object. What is the focal length of this mirror
A tennis ball is hit straight up at 25 m/s from the edge of a sheer cliff. Some time later, the ball passes the original height from which it was hit, What total distance did the ball travel
An insect of height 2 cm is in front of a spherical mirror whose focal length has the absolute value | f | = 40 cm. The insect sees an image of itself that has a height of 0.40 cm and appears upright. Is the image real or virtual? Is it on the same..
A 100-g aluminum calorimeter contains 250-g of water. Twosubstances are in thermal equilibrium at 10 degrees celcius. Determine the specific heat of the unknown sample
a person pushes on a 57-kg refrigerator with a horizontal force of -270 n the minus sign indicates that the force
For |a_1| ≠ |a_2| find the electric potential "V" between the plates. Give V in terms of q, a_1, a_2, d, and r. Use boundary conditions to check your answer.
Find out the moment of inertia of the wheel if the block rises to a height of = 7.70 cm before momentarily coming to rest.
A projectile is launched with a velocity of 20m/s at 60o with the ground. at what angle are the magnitudes of the components equal
A freshly prepared sample of a certain radio isotope has a duty cycle of 11.6 mCi. After 3.6 hours, its activity is 8.00 mCi. Find the decay constant per second
A police radar gun emits an electromagnetic wave at a frequency of fs = 1.08×1013 Hz. What is the speed of the oncoming car (v)
A 48 kg pole vaulter running at 11 m/s vaults over the bar. Her speed when she is above the bar is 1.0 m/s. determine her altitude as she crosses the bar
an electron is initially at rest in a uniform electric field of intensity 1400 nc.find the followinga its acceleration
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