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Assume some dog tags create a sound with a frequency of 1118 Hz at rest. You place these dog tags on a greyhound dog. The dog runs towards you and moves with a speed of 13.7 m/s with her tags clanging together.
a) What is the frequency that you hear of the sound created with the dog tags? (The speed of sound in air is 344 m/s.)
A long air-core solenoid of 240 turns has a length 0.40 m andradius 3.0 cm. It carries a current of 4.0A. find the magnetic field in the solenoid
a block of mass 0.64 kg is suspended by a string which is wrapped so that it is at a radius of 0.059 m from the center
A wire 25.1 m long and 6.00 mm in diameter has a resistance of 15.0 m. A potential difference of 27.0 V is applied between the ends. Calculate the resistivity of the wire material
if you are in a roller coaster, which is moving with 10m/s, describing a circular arc with the radius of 10m, what is the force pushing you in the chair at the top of the loop
The 12.0V battery (an independent voltage source) of your caris connected in series with the starter motor. What power is absorbed by the motor
A ball of radius 0.200 m rolls with a constant linear speed of 3.60 m/s along a horizontal table. What is the angular displacement of the ball while the ball is in the air
question1all through a balloon ascension wearing an oxygen mask you calculate the weight of a calibrated 5.50-kg mass
An undamped 1.58-kg horizontal spring oscillator has a spring constant of 22.8 N/m. What is the oscillator\'s total mechanical energy
A 50.0-g ball moves at 30.0 m/s. If its speed is measured to anaccuracy of 0.10%, what is the minimum uncertainty in its position
A lead bullet with a mass of 0.03 kg traveling at 187 m/s strikes an armor plate and comes to a stop. what is the temperature change
A pot of hot water is boiling on your stove. The pot is in the shape of a round cylinder made of aluminum which is 10 cm in radius. The aluminum is 3 mm thick.
A 151 kg car rounds a curve of radius 163 m at 46 m/s. The acceleration of gravity is 9.8 m/s2 . What force must the road exert on its tires to hold the car on course? find out its speed when it has moved?
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