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A 140-J of work is done on a gaseous refrigerant as it undergoes compression. What is the total amount of energy transferred by heat if there is an increase of 120 J in the internal energy of the system?
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- Question 9 Not yet answered Marked out of 1.00 Flag question A coil is wrapped with 300 turns of wire on the perimeter of a circular frame (radius = 8.0 cm). Each turn has the same area, equal to that of the frame. A uniform magnetic field is turned on perpendicular to the plane of the coil. This field changes at a constant rate from 20 to 80 mT in a time of 20 ms. What is the magnitude of the induced emf in the coil at the instant the magnetic field has a magnitude of 50 mT? O 15 V O 10 V O 18 V OOO 30 v O 24 VThe current and voltage across a circuit element are given by the equations I(t) = 20e 100t (mA), V(t) = 105e-1⁰⁰t (V) Determine the total energy E dissipated by the element between t=0 and t=10ms. The instantaneous power dissipated by the element is P(t) = 1(t)V (t). Find the total energy E by integrating P(t) over the time interval from t=0 to t=10ms=0.01sec. To do so, use the function trapez(fn, a, b, h), which implements the trapezoidal rule for numerical integration and where fn is a function handle to a function that needs to be integrated, a and b are the integral limits and h is the step length. Write in Matlab the function that needs to be integrated and call function trapez with appropriate parameters.Find the impedance theoretically of a wire if it carries the frequency 10 kHz have a voltage is 8v, the current is 2mA, resistance is 13 k, inductance 29 mH and capacitance 0.1 uf
- When the electromotive force is removed from a circuit Containing inductance and resistance but no capacitors, the rate of decrease of the current is proportional to the current. If the initial current is 30 amp and it's down to 1 amp after 0.01 sec, what is the current after 0.03 sec?The electric flux density D at the point M (0,4,0) in the region about a uniform line charge of 1 nC/m lying along the z axis in free space is: Select one: a. None of the above b. 0.6366 nC/m c. 0.2387 nC/m d. 0.039 nC/m e. 0.1 nC/mThe coefficient of linear expansion of an metal plate is 9 x 10-6 /oC. The internal diameter of the metal plate at 20 oC is 2.2 cm. When heated, its area change, if the final diameter is 2.8 cm, what is the final temperature?
- A spontaneous exothermic reaction at a constant temperature and pressure of 50∘C and 2.0 atm has an enthalpy decrease of 350 kJ. This reaction performs 150 kJ of useful work, which is 54% of the maximum work that could be done. What is the reaction’s change of entropy? Express your answer to two significant figures and include the appropriate units.An older model car accelerates from rest to speed v in 10 seconds. A newer, more powerful sports car accelerates from rest to 2v in the same time period. What is the ratio of the power of the newer car to that of the older car?Write a algorithm for 2-D steady state heat transfer where all walls are subjected to Diritchlet Boundary condition. East wall = 100 dc South Wall 150 dc North wall = 150 dc West wall 100 dc %3D Plate maintained at 30 dc.
- The displacement of an oscillating spring can be described by x = A cos(wt) where x = displacement at time t, A = maximum displacement, w = angular frequency, which depends on the spring constant and the mass attached to the spring, and t = time. Find the displacement, x, with maximum displacement A of 4 cm, for times from 0 to 120 seconds with increments of 30 seconds, and angular frequencies from 0.4 to 0.6 radians/sec, with increments of 0.1 radians/sec. The displacement for all combinations of times and angular frequencies needs to be calculated. Use meshgrid. Display your results in a matrix with angular frequencies along the top row and times along the left column like so (you may put zero, 0, or NaN, in the upper left corner:g Boolean Function: F(w,x,y,z) = (8,10,12,14)Energy value of x(t) = rect (t/4) cos(0.5πt) will be