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1.There is a need for a timing circuit to trip a house alarm. Design an RC circuit that reaches 5 V across a capacitor in exactly 5 s. Your source is 12 dc and you have a 10- μF capacitor available.
2. Find the v (t) that satisfies the following differential equation and initial conditions:
(d2v(t)/dt2) + 4 (dv(t)/dt) + 36v(t) = 0, v(0) = 0 V, dv(0)/dt = 24V/s
a truck covers 42.0 m in 8.10 s while smoothly slowing down to final speed of 2.70 ms. a find its original speed. b
An alpha particle approaches a 197 AU nucleus with a speed of1.5x10^7 m/s. In what direction does the nucleus recoil, and with what speed
Two objects with different masses are stuck together and attached to the ends of two strings coming down from a mass less, frictionless pulley. explain will the tension in the rope change
An alpha particle from a radioactive source is directed into a cloud chamber in a uniform magnetic field of 0.80T. find what are its momentum and energy
When plasma density in the ionosphere has a peak value of 1012 per cubic meter at an altitude of 350 km, what is the maximum usable frequency and the maximum range for a communications link using a single ionospheric reflection?
A powerful laser can emit in 0.56x10-2 s anintense pulse of light having an energy of 4500 J. how many photons will be emitted in this pulse
A mass m equals 4 kg on a slanted surface theta equals 30 degrees. A light rigid cord runs from mass m to pully beta equals 1/2 and Mass of pully equals 2 kg which is free to rotate with negligible axial friction.
An alpha particle, which is a helium nucleus, has a mass of 6.64*10^-27 kg. It is travleing horizontally at 42.3 km/s when it enters a uniform, What is the diameter of the path followed by the alpha particle
a toy is launched upward with a spring.its launch speed is 114msupwardand it is under no power once launched.while
A hunter is standing on flat ground between two vertical cliffs that are directly opposite one another. find the distance (in m) between the cliffs
A bicycle wheel of radius 0.70m is rolling without slipping on a horizontal surface with an angular speed of 4Pi rad/s, What is the tangential deceleration of the bicycle
Ted is sitting in his lawn chair when Stella flies directly overhead, going southeast at 114.5 m/s. Five seconds later, a firecracker explodes 190 m east of Ted. What are the coordinates of the explosion in Stella's reference frame?
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