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Solve the given questions:
Question I: What is the sound intensity level in a car when the sound intensity is 0.570 µW/m2?
dB
Question II: What is the sound intensity level in the air near a jackhammer when the pressure amplitude of the sound is 0.300 Pa and the temperature is 20.0°C?
Please show the work for the calculation so I can understand what I'm doing. Thanks!
A 70 kg human body typically contains 140 g of potassium. Potassium has a chemical atomic mass of 39.1 u and has three naturally occurring isotopes.
A person drops a cylindrical steel bar (Y = 2.00 × 1011 Pa) from a height of 3.30 m (distance between the floor and the bottom of the vertically oriented bar). what is the maximum compression of the bar
a ray of light strikes a flat block of glass n 1.50of thickness 2.00 cm at an angle of 16 radian with the normal .
A 70.0 kg construction worker stands at the far end of the beam. What is the magnitude of the torque about the point where beam is bolted into place.
In a dentist's office, an X-ray of a tooth is taken using X-rays that have a frequency of 8.07 multiply.gif 1018 Hz
A person can survive a feet-first impact at the speed of about 12 m/s (27 mi/h) on concrete; 15 m/s (34 mi/h) on soil; and 34 m/s (76 mi/h) on water. Why are there different values for different surfaces.
The axle of a wheel is mounted on supports that rest ona rotating turn table as shown in the gure. The wheel has angular velocity !1 = 44:0 rad/s about its axle, and the turntable has angular velocity!2 = 35:0 rad/s about a vertical axis.
In a certain compound microscope, the object is 9.0 mm from the objective. What overall magnification is produced
A hollow cubical box, 0.28 meter on a side, with walls of negligible thickness floats with 30 percent of its volume submerged. Find what mass of water can be added to the box before it sinks
directions be sure to save an electronic copy of your answer before submitting it to ashworth college for grading.
A sealed tank containing seawater to a height of 11.1 also contains air above the water at a gauge pressure of 2.95. Water flows out from the bottom through a small hole.
Suppose that a 7 centimeter diameter, 120 Watt light bulb radiates all its energy as a single wavelength of visible light. Find the electric field strength at the surface of the bulb
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