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A solenoid of inductance 50mH and resistance 10 ohms is connected to a battery 6v.FInd the time elapsed before the current acquires half of its steady state value.
Cloverleaf exits are approximately circular. A 552 kg automobile is traveling 70 mph while taking a cloverleaf exit that has a radius of 39.3 m. calculate the centripetal force on the car
A solenoid with a cross-sectional area of 1.97×10^3 is 0.810 long and has 480 turns per meter. Find the magnitude of induced emf in this solenoid
a block of mass m18 rests on a frictionless surface and is attached to a light cord that is wrapped around a solid
A baseball pitcher throws a baseball horizontally at a linear speed of 42.5 m/s (about 95 mi/h). find the tangential speed of a point on the "equator" of the baseball
A 77cm tall graduated cylinder is filled with 29cm of glycerin (density 1260 {kg/m3) and 48cm of water. Find the pressure difference between the top and bottom
When responding to sound, the human eardrum vibates about its equilibrium position. Supposed an eardrum is vibrating with an amplitude of the 6.3*10^-7 m and a maximum speed of 2.0*10^-3 m/s.
In figure, a ball isthrown up onto a roof, landing some time later at heighth = 20.0 m above and d = 30.0 m horizontally from the release point.The ball's path just before landing is angled at θ =60.0o with the horizontal roof.
White light containing wavelengths from 400 nm to 750 nm falls on a grating with 7000 lines/cm. How wide is the first-order spectrum on a screen 2.10 m away.
Two automobiles of equal mass approach an intersection. One vehicle is traveling with velocity 12.3 m/s toward the east, find the initial speed of the northward-moving vehicle
The double star system Yasmin is observing is 4.2 * 10^16 m from earth and the two stars are separated from each other with 2.6 *10^11 m. Assuming that the average wave light of light emitted by the stars is 500 nm, estimate the diameter of the objec..
question1a wire shaped in the shape of an equilateral triangle of side d 8 cm carries current i 0.25 a. this loop is
illustrate the refraction of a light ray from a medium of higher speed to a medium of lower speed. label each of the
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