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The nucleus of ordinary hydrogen is a proton. Naturally occurring hydrogen has a trace amount of deuterium whose nucleus has a proton and a neutron. If there were enough deuterium mixed in with the hydrogen in your spectrum tube to produce observable spectral lines, is the resolution of the spectrometer you used in this experiment high enough to see the lines of both hydrogen and deuterium? In particular, would you see two different fifth order blue green lines? Explain.
Physicians use a high-frequency (f = 1-5 MHz) sound waves,called ultrasound, to image internal organs. What is the critical agle for sound waves in air incident on muscle
Two physical pendulums (not simple pendulums) are made from meter sticks that are suspended from the ceiling at one end. Determine the period of the wood pendulum
A siren emitting a sound of frequency 1200 Hz. moves away from you toward a cliff at a speed of 16 m/s. What is the frequency (in Hz.) of sound you hear reflected off the cliff
"Jerk" is the rate of change of acceleration, and it's what can make you sick on an amusement park ride. Find an expression for the maximum jerk
A solenoid with 375 turns per meter and a diameter of 13.7 cm has a magnetic flux through its core of magnitude 1.5 10-4 T · m2. Find the current in this solenoid
A particle of mass 0.450 kg is attached to the 100-cm mark of a meter stick of mass 0.175 kg. Calculate the angular momentum of the system when the stick is pivoted about an axis perpendicular to the table through the 50.0-cm mark
A ball of mass 0.350 kg is swung at the end of a 2.40m string such that the plane of its path is horizontal, find the angle which the string makes with the verticle
A person pulls a sled for a distance of 37.0m along the snow with a rope directed at 20 degrees above the snow. how much work is done on the sled by the tension force
A solenoid has a cross-sectional area of 5.8 x 10-4 m2, consists of 330 turns per meter, and carries a current of 0.41 A. Find the average current induced in the coil
Earthquakes generate sound waves inside Earth. Unlike a gas, Earth can experience both transverse (S) and longitudinal (P) sound waves. how far away did the earthquake occur
An engine develops an output of 117 hp when rotating at 2300 rpm. Compute the output torque
A block of mass 20m can move without friction on a horizontal table. find the magnitude of the acceleration of the descending block
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