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Air is exiting a 100-cm-diameter balloon out a 1-cm-diameter nozzle. If the pressure and temperature at the exit are 110 kPa and 22-C, respectively, and the exit velocity is 30 m=s, calculate the flow rate, the mass flux, and the rate at which the diameter is changing.
A fisherman notices that wave crests pass the bow of his anchored boat every 2.84 second. Determine how fast are the waves traveling
there are two telescopes observing at night. the first telescope is 0.3m and has a focal ratio of f8. the second
At what angle of incidence should one of them shine a flashlight on the mirror so that the reflected beam directly strikes the other person
A sonar device makes a soundwave in the air with a frequency of f1 = 61 Hz. What is the frequency of the sound wave created
A transport plane flies horizontally with a fix velocity of160 m/s, at a height of 2000 m. Find how far ahead of the marker does the tank hit the ground
A hollow sphere of radius 0.15 m, with rotational inertia I = 0.078 kg m2 about a line through its center of mass, What is the speed of the center of mass of the sphere at the initial position
Obtain an expression for the velocity
You are traveling on an airplane, The velocity of the plane with respect to the air is 190 m/s due east, What is the speed of the plane with respect to the ground
a spring is resting vertically on a table. a small box is dropped onto the top of the spring and compresses it. suppose
A 730 Newton man stands in the middle of a frozen pond of radius 5.0 meter. Find how long does it take him to reach the south shore
A heavy uniform rope of length L is placed on two tables where the coefficient of static friction is µs. What is the critical separation distance D before the rope starts to fall
a tropical fish aquarium has thick transparent windows made of a material whose refractive index is 1.742. what
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