Mechanical Engineering Answers

In a curvilinear motion particle P moves along the fixed path 9y=x^2,where x and y are expressed in cm.At any instant t, the x coordinate of P is given by x=t^2-14t.Determine y component of velocity and acceleration of P when t=15 sec?

A series circuit consists of a resistance of 4 ohms, an inductance of 500mH and a variable capacitance connected across a 100V,50Hz supply. Calculate the capacitance require to produce a series resonance condition and the voltage generated across both the inductor and the capacitor at the point of resistance.

The food compartment of a refrigerator, is maintained at 4°C by
removing heat from it at a rate of 360 kJ/min. If the required power input
to the refrigerator is 2 kW, determine (a) the coefficient of performance of
the refrigerator and (b) the rate of heat rejection to the room that houses
the refrigerator.

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A rigid vessel of 0.80mmm contains 1 kg of steam at a pressure of 2 bar evaluate the specific volume temperature dryness fraction internal energy enthalpy and entropy

(b) The vertices of a triangle are situated at points (15, 30), (25, 35) and (5, 45). Find the coordinates of the vertices if the triangle is first rotated 100 counter clockwise direction about the origin and then scaled to twice its size.

2) Computer Integrated Manufacturing deals with _____________________
A) Design and business functions B) Design activities only
C) Design, Manufacturing and business functions D) Manufacturing and business functions

The vertices of a triangle are situated at points (15, 30), (25, 35) and (5, 45). Find the coordinates of the vertices if the triangle is first rotated 100 counter clockwise direction about the origin and then scaled to twice its size.

Find the maximum diameter of hole that can be punch in a M.S. plate 10mm thick
having ultimate shear stress of 220 N/mm2. The allowable crushing stress in punch material is 350 N/mm2.

State different types of damping a vibration system