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The Boeing 727 aircraft of Example 9.8 cruises at 520 mph at 33,000 ft altitude on a standard day. Calculate the cruise Mach number of the aircraft. If the maximum allowable operating Mach number for the aircraft is 0.9, what is the corresponding flight speed?
A nozzle is now attached to the end of the hose. If the nozzle diameter is one-third the diameter of the hose, what is the speed of the water leaving the nozzle
A typical digital cell phone emits radio waves with a frequency of 1.9 GHz. how many photons are emitted each second
A spacecraft that is initially at rest turns its engine at t=0. Ifits mass is m=3000kg and the force from the engine is 45N, what is the acceleration of the spacecraft?
soap bubbles can display impressive colors which are the result of the enhanced reflection of light of particular
As an example, consider a coil of diameter 2.00 cm with 72.0 turns that is rotated about an axis perpendicular to the field at a rate of 20.0 Hz. If the maximum induced emf in the coil is 6.00 V, find out the strength of the magnetic field.
An object is placed 3.4 cm to the left of a converging lens of focal length 2.8 cm. A convex mirror of focal length -3.9 cm is placed 5.4 cm to the right of lens. A) What is the image distance for the image produced by the lens?
Four ropes are tied to a stake, and each is pulled toward a compass direction, N, S, E, or W. A force of 7 N is applied to the rope pulled toward the east. Forces of 18, 26, and 45 N are applied toward the south, west, and north, respectively.
A group of students determined that the following points were upon the best fit line for a graph of W2 vs. Determine the total mass of the system
A boy scout starts a fire by using a lensfrom his eyeglasses to focus sunlight on kindling 5.6 cm from the lens. What is the magnification when the eye is relaxed
An electromagnetic wave in a vacuum has a maximum magnetic field amplitude of 5.67×10?7 T. find the maximum electric field amplitude of the wave
In a system of the Atwood machine with masses of 6kg and 10kg. (a) What is the tension in the chord connecting the masses?
Two masses m1= 1 kg and m2= 2 kg are connected to each other by a massless rope that passes over a pulley with mass mp= 0.5 kg. What is the period (in s) ofsmall oscillations of this system
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