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Two cars are each traveling at 27.0 m/s, and they are approaching each other. The security alarm in one of the cars accidentally sounds. When the car is stationary, the alarm produces a frequency of 610 Hz. The speed of sound is 343 m/s. What frequency of is heard by the driver of the other car?
A car travelling at 23 m/s runs out of gas while travelling up a 20 degree slope. How far up the hill will it coast before starting to roll back down.
A potter's wheel is rotating around a vertical axis through its center at a frequency of 1.5rev/s. find the frequency of the wheel after the clay sticks to it
A microscope has an objective lens with a focal length of 16.22 mm and an eyepiece with a focal length of 9.76 mm. what is the actual diameter of the red blood cell
A person with mass m1 = 60 kg stands at the left end of a uniform beam with mass m2 = 91 kg and a length L = 3.2 m, What is the location of the center of mass of the system
If an automobile rounds this curve at 30 {rm m/s}, illustrate what is the minimum coefficient of static friction between tires and road needed to prevent skidding?
A 75 g piece of ice at an initially unknown temperature is placed into a glass of 350 g of water sitting at room temperature, What is the specific heat capacity of the unknown metal
What can you conclude about the resulting displacements?
A bus is traveling up a hill at a speed of 34m/s. The hill is 23 degrees relative to horizontal and the coefficient of static friction between the bus's tires and the road is 0.6
what is the difference in blood pressure (mm-Hg) between the top of the head and bottom of the feet of a 1.84m tall person standing vertically
A mini-fridge needs to maintain a temperature of 277 K. The air outside the mini-fridge has a temperature of 292 K. What is the power output (that is, the work done per second) of the compressor in the mini-fridge
Two cesium-133 atomic clocks differ by one second in 6000 years. Assume one of the clocks gains one second in six thousand years, approximately what is the change in the number of oscillations of the light each second?
A 0.5 kg dart is fired vertically from a spring gun that has spring constant of 4000 N/m. Determine maximum height reached by dart.
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