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a) Two sound sources of 785.0Hz and 783.4Hz with the same intensity are played together. What do you hear and how frequently?
b) an f-16 fighter jet's engine emits a whistling sound of 15,000Hz. if it approaches you at 600 mph (268m/s) what is its perceived frequency?
Two lightweight rods 24 {rm cm} in length are mounted perpendicular to an axle and at 180 ^circ to each other. At the end of each rod is a 480 {rm g} mass. The rods are spaced 42 {rm cm} apart along an axle. The axle rotates at 4.90 rad/s.
An object of mass m = 0.33 kg sits on a frictionless surface and is attached to the end of a spring with spring constant k = 2.5 N/m. What is the frequency of oscillation
Prism of refractive index 1.53 is placed in water of refractive index 1.33. If the angle of the prism is 60. Calculate the angle of minimum deviation in water
The rms speed of a sample of gas is increased by 3 percent. What is the percent change in the temperature of the gas? What is the percent change in the pressure of the gas, assuming its volume is held constant?
A sealed container of volume 0.10 m^3 holds a sample of 3.0 x 10^24 atoms of helium gas in equilibrium, Calculate the temperature and pressure of the helium gas
A defibrillator is used during a heart attack to restore the heart to its normal beating pattern. A defibrillator passes 18 A of current through the torso of a person in 2.1 ms, How much charge moves during this time
An elevator has a downward acceleration of 1 m/s2. A person, having a weight of 800 N as measured by a scale at rest on the ground, steps on a scale in the elevator. What does the scale read? A) 0 N. B) Approximately 80 N. C) Between 80 N and 800 ..
A spring is hung from the ceiling. A 0.600-kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
Hurricane winds of 95 m/h are blowing over the flat roof of a well sealed house. What is the difference in air pressure between the inside and outside of the house
A thin flat plate is installed in a water tunnel as a splitter. The plate is 0.3 m long and 1 m wide. The free stream speed is 1.60 m/s. laminar boundary layers form on both sides of the plate. The boundary-layer velocity profile is approximated as p..
A baseball batter swings the bat and applies a force of 36.38 N to the ball for a time of 0.31 s. what is the impulse on the ball
What can you conclude about the resulting displacements?
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