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A coil has a resistance of 41.0 Ω. At a frequency of 85.0 Hz the voltage across the coil leads the current in it by 50.6o.
Determine the inductance of the coil.
A hoop is rolling with-out slipping along a horizontal surface at 11 m/s, Evaluate what is the speed of the hoop after it has rolled 6.00m up the ramp
A bat can detect small objects, such as an insect, whose size is approximately equal to one wavelength of the sound the bat makes. what is the smallest insect a bat can detect
A 1540.0 g mass is ona horizontal surface with μk = 0.31, and is in contact with a massless spring with a force constant of 787.0N/m which is compressed. When the spring is released, it does 2.52J of work on the mass while returning to its equilib..
q1. a 0.850 kg block is attached to a spring with spring constant 16.0 nm. while the block is sitting at rest a student
two point charges are distance d 43.5 cm apart they have equal and opposite charge each with magnitude q 8.94 oc. the
A bat at rest sends out ultrasonic sound waves at 46.9kHz, What is the received sound frequency
The electric field points due east and has a magnitude of 4.3 105 N/C. The mass of the electron is 9.11 10-31 kg and that of the proton is 1.67 10-27 kg. Both the proton and electron have charge magnitudes of 1.60 10-19 C.
Find the speeds of the proton and alpha particle, respectively, at infinity.
A pine cone falls from a tall tree. It takes 0.2 seconds to pass by a 2 meter tall window, i.e.the time between when it' s visible at the top of the window, How high above the window was it at its starting point
In a pairs figure skating competition, a 65 kg man and his 45 kg female partner stand facing each other on skates on the ice. what is the velocity of her partner
If a curve with a radius of 80 meter is perfectly banked for a vehicle traveling 69 km/h, find what must be the coefficient of static friction for a vehicle not to skid when traveling at 87 km/h
A laser has a power of 22.9 W and a beam radius of 0.515 mm. Find the intensity of the laser
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