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the 6800-kg helicopter takes off from rest. Its rotor exerts constant 88.000 N vertical thrust.
(a) What is the helicopter vertical acceleration?
(b) How high does it rise in 2 s?
a circular curve of highway is designed for traffic moving at 85 kmh. assume the traffic consists of cars without
For a one-dimensional wall (a slab) with a thickness of 60 mm and a thermal conductivity of 27 W/mK, the temperature distribution is given by T(x) = a + bx + cx^2 where a = 300 C, b = 160 C/m, and c = -2000 C/m^2. The x is in meters. Determine the in..
The plates are 50 mm by 20 mm in size. When parallel to each other, they are 2 mm apart, as shown in Figure 6.46b. When on a plane, they are separated 2 mm while the edges remain parallel. Calculate the range of the capacitor capacitance.
The front left corner of a 1500-kg vehicle strikes a rigid bridge support and moves off to the right at an angle of 30 degree from the direction of impact. What was the impulse magnitude acting on the vehicle
how does the statistical mechanical definition of entropy allow a reinterpretation of the second and third law of
the 50-lb package starts from rest slides down the smooth ramp and is stopped by the spring. the coefficient of static
Find the cost of the Premier Package to the nearest cent.
Give a complete design analysis of a single plate clutch, with both sides effective of a vehicle to transmit 22 kW at a speed of 2800 r.p.m. allowing for 25% overload. The pressure intensity is not to exceed 0.08 N/mm^2 and the surface speed at the m..
Calculate the compressive stress ac in the piston rod (see figure on page 38) when a force P = 36 N is applied to the brake pedal. (The diameter of the rod is 5 mm. The other dimensions shown in the figure are perpendicular to the line of action o..
A particle travels around a circular path having a radius of 80m. It is initially traveling with a speed of 10 m / s and its speed then increases at a rate of v = (0.05v) m /s2. Determine the magnitude of the particle's acceleration four seconds late..
assume that the flow of air through a given duct is isentropic. at one point in the duct the pressure and temperature
The gas pressure on the piston is 6 kg/cm2 when it has moved 1.5 cm from the inner dead centre on its power stroke - Determine the net load on the gudgeon pin when the engine runs at 2000 rpm . At what speed this load will be zero ?
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