The field outside a solenoid behaves like that of a bar magnet
Indicate whether the statement is true or false
TRUE
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Which of these are effects of the Doppler shift?
A. When an object accelerates, the wavelengths of its light get warmer. B. When an object is moving toward us, the wavelengths of its light decrease. C. When an object slows, the wavelengths of its light get cooler. D. When an object is moving away from us, the frequencies of its light increases.
A proton is accelerated from rest through a potential difference of 150 V. It then enters a region of uniform magnetic field and moves in a circular path (radius = 12 cm). What is the magnitude of the magnetic field in this region?
A. 18 mT B. 12 mT C. 15 mT D. 22 mT E. 10 mT
Describe mechanical efficiency
What will be an ideal response?
How is a rock defined?