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Problem: An ambulance with a siren emitting a whine at 1550 Hz overtakes and passes a cyclist pedaling a bike at 2.39 m/s. After being passed, the cyclist hears a frequency of 1539 Hz.
Part A: How fast is the ambulance moving?
I need help to solve the above question and take the speed of sound in air to be 343 m/s.
at time t a particle of mass m has a position vector position vector r a2 szligcirci at2circj where a and szlig are
An aluminum cup contains 225 g of water and a 40-g copper stirrer, all at 27°C. A 500-g sample of silver at an initial temperature of 85°C is placed in the water. Calculate the mass of the aluminum cup
Discover new angles with respect to the x-axis
On windy days it sways with a frequency of 0.21 , and the acceleration of the top of the building can reach 2.4 of the free-fall acceleration, enough to cause discomfort for occupants.
Compressed air can be pumped underground into huge caverns as a form of energy storage. The volume of a cavern is 4.9 Ã- 105 m3, how many homes could this internal energy serve
A 30 gram particle undergoes SHM with amplitude of 2.0 mm and a maximum acceleration of magnitude2.0 multiplied by103 m/s2, and an unknown phase constant, Estimate what is the maximum speed of the particle
Evaluate the heat loss per meter for each of the combinations you can figure out. Summarize the result in a graphical way, such as a table, such that they are easy to read and understand.
Chef at the infamous Fattening Tower of Pizza tosses the spinning disk of uncooked pizza dough into the air. The disk's diameter increases during the flight, whereas its rotational speed.
An ice skater rotating 3.85 rad/s with arms extended has a moment of inertia of 2.31 kg*m^2. what is the final angular speed
A glass is half-full of water, with a layer of oil(n = 1.51) floating on top. A ray of light traveling downward through the oil is incident on the water at an angle of 72.9°. Take the refraction index of water to be1.333.
Two cars are moving. The first car has twice the mass of the second car however only half as much kinetic energy. When both cars increase their speed by 5.0 m/s, they have the similar kinetic energy. Compute the original speeds of the two cars.
A van starts from rest on a curve with a radius of 190 meter and accelerates at 1.50 m/s2. Compute how many revolutions will the van have gone
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