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The drawing shows a plane diving towards the ground and then climbing back upward. During each of these motions, the lift force acts perpendicular to the displacement , which has the same magnitude, 2.90 x 103 m, in each case. The engines of the plane exert a thrust , which points in the direction of the displacement and has the same magnitude during the dive and the climb. The weight of the plane has a magnitude of 5.20 x 104 N. In both motions, net work is performed due to the combined action of the forces, and
(a) Is more net work done during the dive or the climb? Explain your answer.
(b) Find the difference between the net work done during the dive and the climb.
The mutual inductance between two coils is .0100H. The current in the first coil changes uniformly from 2.70 A to 5.0 A in .160 sec. find the magnitude of induced current in the second coil
A parallel-plate air capacitor has a capacitance of 400pF and a charge of magnitude 0.150\muC on each plate. What is the surface charge density on each plate
What is the efficiency of a cyclical heat engine in which 65.0 kJ of heat transfer occurs to the environment for every 95.0 kJ of heat transfer into the engine
(a) Determine the distance of the final image relative to the converging lens. (b) What is the height of the final image (including the proper algebraic sign)?
A large box with mass 45 kg is being pushed up a ramp at a 32 degree incline at a constant velocity by a man pushing parallel to the incline of 7.80 m. determine the force the man is pushing on the box
A cylinder of gas at room temperature (20°C) has a pressure p1. To what temperature in degrees Celsius would the temperature have to be increased for pressure to be 2.7p1.
A 1000 kg rocket carrying 4000kg of fuel is travelling at 200 x m/s It burns and ejects 100kg of exhaust with a relative velocity of ?400x m/s , What is the final velocity of the rocket after this
a detector has a sensitivity of 10^6 V/W and a NEP* = 10^-10 W/Hz^1/2. Light of 1E-6 W power is measured with the detector, what is the signal
The average coefficient of volume expansion for carbon tetrachloride is 5.81 10^-4 (°C)?1. how much will spill over when the temperature rises
light rays in a material with index of refrection 1.25 can undergo total internal reflection when they strike the
Use Excel spreadsheet to computer the frequency response (gain and phase) of the above transfer function over the frequency range between 0.01Hz to 10 Hz.
Consider two vectors where F_1= 84 N, F_2 = 46 N, theta_1= 5 degrees, and theta_2 = 144 degrees, measured from the positive x axis with the counter-clockwise angular direction as positive. What is the magnitude of the resultant vector F = F_1 + F_..
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