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You are driving east on 8th Street (Tamiami Trail) at a speed of 34. In the rearview mirror, you see an ambulance approaching at what you estimate to be roughly twice your speed. You hear the siren of the ambulance at 475 Hz. What is the frequency of the siren?
You are driving north on 107th Avenue at a speed of 32.3 mph. A police car whose siren produces a sound at a frequency of 513 Hz is approaching from the opposite direction at a speed of 61 mph. At what frequency do you year the siren?
What is the pressure at the bottom of a swimming pool which is 12ft deep and contains fresh water.
Estimate the boiling point of a 0.6 molal solution of NaCl in water, What is the osmotic pressure of a 100 mL of toluene solution that contains a total of .005 moles of a polymer dissolved in it at 25°C
What is the least (non-zero) thickness for the air layer between two flat, and parallel, glass surfaces if the glass is to appear dark while 640 nm light is incident normally? What if the glass is to appear bright.
illustrate whatever balance was unpaid, not 25 percent of the total loan. Explain how will the court decide whether Griffin is entitled to testify about the conversation?
A 250 gram sample of a metal is warmed from 60 degrees celcius to 85 degrees celcius when 1000 cal are added. What is the specific heat constant of the metal.
When the density of the string is changed, say increased, what is the effect on the frequency required to obtain a given number of loops
A space traveler weighs 750 N on earth. Illustrate what will the traveler weigh on another planet whose radius is three times that of the earth and whose mass is twice that of the earth.
To construct a solenoid, you wrap insulated wire uniformly around a plastic tube 14cm in diameter and 55cm in length, What is the total length of wire you will need to meet these specifications
A circular disk with the rectangular hole has a radius of 0.540 m and mass of 0.440 kg. It is suspended by a point on its perimeter. The moment of inertia about this point is I_p = 1.7×10-1 kgm2.
An athlete competing in the hammer throw swings a 4.0 kg hammer on a chain in a horizontal circle with a 5.4 m diameter. What is the tension in the chain attached to the hammer at that speed
A particle has a charge of +2.3 ?C and moves from point A to point B, a distance of 0.13 m. The particle experiences a constant electric force, and its motion is along the line of action of the force.
What is the electric field strength between the disks. What is the speed of the box at the end of the 5.7-s interval.
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