Engineering Answers

A fly wheel has a speed of 300 r.p.m.

1 what is it angular velocity

2. What angle will be generated in 0.2 second

3 what much time is required for the wheel to rotate through 628 radians

The population of a town grows at a rate proportional to the population present at time t. The initial population of 5000 increases by 50% in 10 years. What will be the population in 30 years?

a cube with edge length of 10cm is inscribed in a sphere, what is the surface area of the sphere

if a force of 6900N is raised in a height of 15meters in 36 seconds what is the work done and the power developed?

an energy source forces a constant current of 2.5amps for 20 seconds to flow through a light bulb. if 3kilojoules is given of in the form of light and heat energy calculate the charge of the current and the voltage drop across the bulb.

If the pressure at sea level is 101.325 kPa, and assuming a constant density of 1.2550 kg/m3 , what will be the pressure at an altitude of 11,000 m

A ball is thrown horizontally from the top of a 103-m building for 4.58 seconds. What are the horizontal and vertical velocities of the ball if its initial velocity is 3 m/s?

How is the friction effect taken into account at the turning and sliding pairs of a mechanism? Explain in detail.

Using residue theorem evaluate ∲c e^z-1/z(z-1)(z-i)² dz where C is |z|=2

Find the most general analytic finction f(z)=u+iv where the real part u(x,y)=x^2-y^2-x