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A sound wave from a siren has an intensity of 82.2 W/m2 at a certain point, and a second sound wave from a nearby ambulance has an intensity level 8 dB greater than the siren's sound wave at the same point. Obtain the intensity level of sound wave due to ambulance?
___________dB
Two infinite parallel plates separated by distance S are at potentials 0 and V0. What are the charge densities on the plates
a train has a length of 109 m and starts from rest with a constant acceleration at time t 0 s. at this instant a car
When the temperature of a coin is raised by 87.8 C°, the coin's diameter increases by 2.14 x 10-5 m. If the original diameter is 1.75 x 10-2 m, Discover the coefficient of linear expansion.
The inner sphere has radius 15.0 cm and the capacitance is 116 pF. If the potential difference between the two spheres is 220 V, illustrate what is the magnitude of charge on each sphere?
A 0.260 kg croquet ball makes an elastic head-on collision with a second ball initially at rest. What is the mass of the second ball
A banked curve in a road is designed so that it can be safely navigated by cars traveling at 20 m/s in icy conditions (no friction). what is the horizontal of curvature for this curve
An electron starts from rest 32.5 cm from a fixed point charge with Q=-0.125 µC. How fast will the electron be moving when it is very far away
Two sinusoidal waves of the same period, with amplitudes of 8.0 and 11.0 mm, travel in the same direction along a stretched string; they produce a resultant wave with amplitude of 16.952 mm. The phase constant of the 8.0 mm wave is 0. What is the pha..
What mass (in grams) of steam at 100°C must be mixed with 124 g of ice at its melting point, in a thermally insulated container, to generate liquid water at 37.0°C.
Find the quantum uncertainty of the position of a car along its direction of motion. Assume that the mass of the car is 1840 kg and its speed is known with accuracy ?v = 1 km/hour
A sample of ethyl alcohol (C2H5OH) has a density of 806 kg/m3 and a volume of 1.73 x 10-3 m3. Determine the mass (in kg) of a molecule of ethyl alcohol
a sinusoidal wave travelling in the -x direction to the left has an amplitude of 20.0 cm a wavelength of 35.0 cm and a
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