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Two tuning forks have frequencies of 272 Hz and 294 Hz. What is the beat frequency if both tuning forks are sounded simultaneously?
fbeat=_________Hz
A mechanic pushes a 3.4 103 kg car from rest to a speed of v, doing 5000 J of work in the process. During this time, the car moves 26.0 m. find the horizontal force exerted on the car
A 352-kg motorcycle is accelerating up along a ramp that is inclined 30.0º above the horizontal. Find the magnitude of the motorcycle's acceleration
Presume the child remains horizontal during the fall to the floor. Note that a more complicated fall could result in a head velocity greater or less than the speed you calculate.
Your friend's car is parked on a cliff overlooking the ocean on an incline that makes an angle of 22.1° below the horizontal. Find the car's position relative to the base of the cliff
You are playing raquetball at the rec center. When you are 10 m away from the wall you hit a ball 26m/s towards the wall at an angle of 30 degrees. How long is the ball in the air before it hits the wall
A certain metal with atomic mass 2.6 × 10?25 kg has an interatomic bond with length 2.5 × 10?10 m and stiffness 45 N/m. What is the speed of sound in a rod made of this metal
There are 50x10^6 homes in the US. Each home has one light bulb which runs one hour per day. all have 75watt light bulbs. How much energy per year do they use for lighting
Analyze and interpret the process behavior charts of selected quarterly earnings data of Southwest Airlines between 2000 and 2005.
A golfer tees off on level ground, giving the ball an initial speed of 38.5 m/s and an initial direction of 36.0° above the horizontal. (a) How far from the golfer does the ball land? (Neglect air resistance.)
A hill that has a 17.2 % grade is one that rises 17.2 m vertically for every 100.0 m of distance in the horizontal direction. At what angle is such a hill inclined above the horizontal?
A long solid cylindrical wire of radius 0.01 meters carries a current whose density (current per unit area) is given by J=0.02r^2.
A bicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting down hill. what is the rider's total mechanical energy when he coasts to a height of 25.0 m above sea level
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