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what is the net upward force on an airplane wing of area 260 m2 if the speed of air flow is 246 ms across the top of
air that initially occupies 080 m3 at a gauge pressure of 140 kpa is expanded isothermally to a pressure of 1013 kpa
a cord of length 15 m is fixed at both ends its mass per unit length is 12 gm and the tension is 12 n calculate the
an s wave crosses the boundary between two different types of rock the angle of incidence is 22deg and the angle of
a ball is launched from a height of 794 ft above the ground with a speed of 1695 ms at an angle of 3448 degrees from
a spelunker cave explorer drops a stone from rest into a hole the speed of sound is 343 ms in air and the sound of the
an expensive grand piano has been pushed to the top of the ramp 177 m high inclined at 2890 degrees at the back of a
dimitri walks 2766 m due north 4058 m due east and then 1798 m due south what is the magnitude of his
a rifle is aimed horizontally at a target 18971 m away the bullet hits the target 091 inch below the aim point what was
a two capacitors c1 38 f c2 178 f are charged individually to v1 144 v v2 43 v the two capacitors are then
an air-filled parallel plate capacitor with a plate spacing of 170 cm has a capacitance of 470 f the plate spacing is
a plane drops a package of food to stranded caribou on an ice flow in the arctic circle the plane flies 49947 m above
a car is traveling at 6753 mph the driver applies the brakes and the car decelerates at 568 ms2 what is the stopping
a ball is launched straight up with a speed of 2527 miles per hour what is the maximum height reached in
four identical metallic objects carry the following charges 179 621 -416 and -941c the objects are brought
a train accelerates at 297 ms2 from rest to a steady speed in 3427 s it maintains that speed for 1742 miles and then
an oscillator vibrating at 1210 hz produces a sound wave that travels through an ideal gas at 325ms when the gas
two balls are rolled off the tabletop that is 075m above the floor ball a has a horizontal velocity of 32 ms and that
an air-traffic controller observes two aircraft on his radar screen the first is at altitude 800 m horizontal distance
a boy of mass 581 kg is about to disembark from a canoe of mass 363 kg the canoe is initially at rest with the bow just
a block of mass 5 kg hangs on a spring when a second block with an identical mass of 5 kg is tied to the first the
an apple weighs 101 when you hang it from the end of a long spring of force constant 156 and negligible mass it
a computer hard disk starts from rest then speeds up with an angular acceleration of 190 radssquared until it reaches
suppose that while moving into an apartment you move a refrigerator into place by sliding it across the floor the
a small plastic sphere with a charge of -60nc is near another small plastic sphere with a charge of -15nc if the