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Two small stereo speakers are 2.8 m apart and act as a double-slit interference experiment by sound waves. If the opposite wall of the room is 7.5 m away and the sound frequency is 1.4 kHz, what is the distance among the two interference maxima nearest the center of the wall? Suppose the speakers act as point sources of sound.
A 5.0 C charge is 10m from a -2.0C charge. What is the electrostatic force on the positive charge?
A ball is thrown straight up in the presence of gravity and quadratic air resistance (frictional force = -cv^2v~). Find the velocity as a function of height
The passengers in a roller coaster car feel 50% heavier than their true weight as the car goes through a dip with a 10.00 radius of curvature. What is the car's speed at the bottom of dip? What is the car's speed at the bottom of the dip?
After landing on an unfamiliar planet, a space explorer constructsa simple pendulum of length 50.0 cm. What is the value of the acceleration of gravity on this planet
a man with a mass of 77.9 kg stands up in a 83-kg canoe of length 4.00 m floating on water. he walks from a point 0.75
An ambulance traveling at 38 m/s approaches a car heading in the similar direction at a speed of 27 m/s Find at what frequency does the driver of the car hear the siren
a spring oscillator is designed with a mass of 0.232kg. it operates while immersed in a damping fluid selected so
In one day, a 85 kg mountain climber ascends from the 1440 m level on a vertical cliff to the top at 2360 m . The next day, she descends from the top to the base of the cliff, which is at an elevation of 1310 m
hearing damage may occur when a person is exposed to a sound intensity level of 90.0 db relative to the threshold of
A rectangular loop of side lengths 3 cm and 5 cm, What is the speed of the loop if the induced current is 1.5 mA
What is the longest wavelength of light that may be absorbed by a hydrogen atom that starts in the second excited state
Sodium light of wavelength 589nm falls on a diffraction grating and its first-order peak on a screen 60.0cm away falls 3.32cm from the central peak. How many lines per cm does the grating have
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