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What is the broadest definition of a 'transducer?'
In what ways is the transducer in medical ultrasound a 'speaker' & 'microphone?'
Do you think the transducer could be a 'speaker' & 'microphone' at the same time? Why or why not?
Electric bees. As they fly through the air, honeybees can pick up a small amount of electric charge, Find the magnitude of the electric force on the bee in the electric field just above Earth's surface, 130N/C directed vertically downward
A concave mirror ( f = 51 cm) produces an image whose distance from the mirror is one-third the object distance, determine the object distance and the image distance
The block is acted upon by its weight w=200lb, a horizontal force Q=600 lb and pressure P exerted by the inclined plane. The resultant R of these forces is up and parallel to the incline there by sliding the block up it. Establish P and R.
An average force of 201 N is exerted to draw the string back 1.3 m. unless otherwise directed, imagine that air resistance is negligible. Illustrate energy bar graphs to solve the difficulty .
Sketch a free-body diagram of the plank. How far can a painter of mass 70.0 kg walk on the overhanging part of the plank before it tips.
Calculate the orbital period of Neptune (in yr) from knowledge of G, the mass of the sun (M = 1.99×1030 kg), and the orbital radius of Neptune of 3.00×101A.U
It's possible to estimate the percentage of fat in the body by measuring the resistance of the upper leg rather than the upper arm, What are the fractions of muscle and fat in the leg
A 0.810 kg particle has a speed of 2.60 m/s at point A and kinetic energy of 8.80 J at B. What is its speed at B? reply in units of m/s.
Communications satellites are placed in a circular orbit where they stay directly over a fixed point on the equator as the earth rotates. find the speed of a satellite in geosynchronous orbit
How much force is needed to increases the velocity of a 5000kg truck from 40 km/h to 70 km/h in 20 s on the horizontal road, What is the change of the total mechanical energy
A listener increases his distance from a sound source by a factor of 3.05, what is the change in the sound intensity level in dB
A flashlight bulb with a resistance of 40 ohm is powered with a six volt battery and produces .75W power. obtain the internal resistance of the battery
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