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You bike at 11.5 m/s directly away from your neighbor\'s trumpet sound and toward the sound of another neighbor\'s trombone and find that you hear both instruments at exactly the same pitch. The trumpeter is practicing her middle C, at a frequency of 262 Hz. What frequency is the trombonist producing? The speed of sound in air is 343 m/s. Answer is in Hz
A rocket is launched at an angle of 57.0° above the horizontal with an initial speed of 99 m/s. The rocket moves for 3.00 s along its initial line of motion with an acceleration of 30.0 m/s2. At this time, its engines fail and the rocket proceeds ..
A soccer ball is kicked with an initial horizontal velocity of 18.0 m/s, find the maximum height the ball goes above the ground
If the plant produces electric energy at the rate of 1.3GW , how much exhaust heat is discharged per hour
How much time is necessary to catch the car
The yellow light from a helium discharge tube has a wavelength of 587.5 nm. calculate the number of lines per centimeter on the grating
In a double-slit experiment, what is the linear distance on the screen between adjacent maxima if the wavelength is 538 nm
A female orb spider has a mass of 0.45g . She is suspended from a tree branch by a 1.0m length of 0.0020-mm-diameter silk. If you tap the branch and send a vibration down the thread, how long does it take to reach the spider
A particle with a positive charge 2e moves with a velocity V= (2i + 3j - k) m/s through a region where both a uniform magnetic field and a uniform electric field exist. Calculate the total force on the moving particle
A small metal bead, labeled A, has a charge of 29 . It is touched to metal bead B, initially neutral, so that the two beads share the 29 charge, but not necessarily equally. When the two beads are after that placed 5.0 apart, the force between the..
A block of iron has the dimensions of 3.00 cm x 3.00 cm x 3.00 cm. It has a mass of 213 g. When placed in water, the block sinks. What volume of water did it displace.
The engine of a large ship does 2.10 ? 108 J of work with an efficiency of 4.00%. How much waste heat is produced
the speed with which hair or fingernails grow. what is the average speed of growth? What units are most appropriate for describing this speed
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