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A fireman, 53.4 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 30 above the horizontal.
If the speed of the stream as it leaves the hose is 60.9 m/s, at what height will the stream of water strike the building? The acceleration due to gravity is 9.8 m/s2.
a field (parallel to the axis of the coil) with a magnitude given by B(t) = (4.0 + 3.0t2) T, where t is in s. What is the value of the induced current in the wire at t=3.5 s
A camera has a lens w/ a 52 mm focal length and a sensor array that measures 4.82mm x 3.64 mm, how far away from the animal will you have to stand
A spring is hung from the ceiling. A 0.300-kg block is then attached to the free end of the spring. Find the angular frequency of the block's vibrations
An object acted on by three forces moves with constant velocity. One force acting on the object is in the positive x direction, Find the direction of the third force acting on the object
A mass is trapped on the x-axis. Its potential energy is given by U=-2x^3 -3x^2 +12x. Where x is i meters and U is in joules. A) Determine an expression for the force that acts on the mass as a function of position.
a thin glass (n = 1.50) converging lens for which the radii of curvature are R1 = 15.0 cm and R2 = -12.0 cm. Determine the area of the image
In the Tintin adventure Explorer's on the Moon, the rocket leaves earth and accelerates toward the moon. Upon reaching some point between the two planetary bodies, it executes a turning maneuver, at which point rocket is "facing backwards". How lo..
A +20 nC point charge is placed on the x axis at x =2.0 m, What is the direction of the electric field at the origin
200mH inductor with 78 ohm resistance is connected in series to a 16 u F capacitor and a 60 Hz Vrms = 25 V source. Calculate the rms current
A luminous object is 3.40m from a wall. You are to use a concave mirror to project an image of the object on the wall, How far should the mirror be from the wall
An air parcel moves northwards and becomes entrained in a strong westerly flow, circling the entire globe in the space of a few weeks. State the name given to this high-level flow and define briefly how its structure is related to lateral and vert..
Water flows at 0.60 m/s through a 3.0 cm diameter hose that terminates in a 0.25 cm diameter nozzle. At what speed does the water pass through through the nozzle
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