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The fundamental frequency of an open pipe corresponds to middle E (329.6 Hz on the chromatic musical scale). The third resonance of a closed organ pipe has the same frequency. What are the lengths of the two pipes(open and closed)? (Assume that the speed of sound in air is 343 m/s.)
Two small metallic spheres, each of mass m = 0.198 g, are suspended as pendulums by light strings of length L as shown in the figure below. The spheres are given the same electric charge of 7.4 nC, and they come to equilibrium when each string is ..
A 0.75 kg cart has been attached to a spring. The cart is moved to the right by 2.0 cm. What is the elastic potential energy stored in the spring
What is the speed of the 2 cars as they move together after the collision.
A uniform rod of mass 2.55×10?2kg and length 0.440m rotates in a horizontal plane about a fixed axis through its center, What is the angular speed of the system at the instant when the rings reach the ends of the rod
The refracting telescope at the Yerkes Observatory has a 1.00-m diameter objective lens of focal length 20.0 m. Assume it is used with an eyepiece of focal length 1.90 cm. (a) Determine the magnification of Mars as seen through this telescope.
Find the speed of a satellite moving around the earth in a circular orbit that has a radius equal to three times the earth's radius of 6.38 106 m
When ultraviolet light with a wavelength of 400.0 nm falls on a certain metal surface, the maximum kinetic energy of the emitted photoelectrons is measured to be 1.10 eV. What is the maximum kinetic energy of the photoelectrons
A power plant taps steam superheated by geothermal energy to 533 K (the temperature of the hot reservoir), determine the minimum amount of rejected heat
Cloud droplets cannot grow into rain droplets by condensation alone. How would you have to alter the basic assumption of this example to make cloud droplets grow to raindrops by condensation only?
a 15 kg box is skid down a 6 meter high ramp to pick up speed to do a veritcal loop-the-loop whose radius is 2 meters. What is the speed at the top of the loop-to-loop
Two equally charged spheres of mass 1.0 g are placed 2.0 cm apart. When released, they begin to accelerate at 655m/s^2. What is the magnitude of the charge on each sphere
Type yourAfter a plant or animal dies, its 14C content decreases with a half-life of 5730 years. what is the age of the ancient site
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