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The leader of a major aero-defense manufacturing plant. You build fighter-jets. You travel nearly 90% of the time for busines. You find yourself on a commercial airplane preparing to take-off. The plane begins traveling down the runway at 170 miles per hour. At this very time, you lean back in your seat and remember your college physics course and the principle of lift. Explain this principle and how it relates to all air travelers everywhere.
A model rocket launches with initial net upward accelration 1.5g (g is 9.8), This accelaration is maintained for 3 seconds. At what time does the rocket reach its maximum height
A block of wood 10 cm by 10 cm by 40 cm with mass 3.2 kg and uniform density stands on its end on level ground. In the following, assume that static friction with the ground is large enough that if I push on the block, it does not slide. IS the an..
An airplane pilot wishes to fly to his destination 500 mi due west, but the wind is blowing at 35.3 mi/hr toward 10.7° north of west. what will be the speed of the plane relative to the ground
A force, F(vector) =(2xˆ+3yˆ) N, is applied to an object at a point whose position vector with respect to the pivot point is r(vector) =(4xˆ+4yˆ+4zˆ) m
A bullet is shot straight up into the air. It takes 30.5 s for the bullet to go straight up and fall back straight down to its starting position. At what initial speed (in m/s) was the bullet shot into the air
The coefficient of kinetic friction for a 22 kilogram bobsled on a track is 0.10. Determine what force is required to push it down a 6.0 degree incline and achieve a speed of 60 km/h at the end of 75 meter
A 10.0 gram wad of sticky clay is hurled horizontally at a 95 gram wooden block initially at rest on a horizontal surface. The clay sticks to the block. obtain the speed of the clay immediately before impact
Use Gauss' law to determine the magnitude of the electric field intensity at point r units away from an infinitely on thin wire carrying a charge λ unit per length. (Consider a cylinder of length L and radius r concentric with the wire.)
A dedicated sports car enthusiast polishes the inside and outsidesurfaces of a hubcap that is a section of a sphere. When he looksinto one side of the hubcap, he sees an image of hisface 26.0 cm in back of thehubcap.
a wheel is rotating at 33.3 rad/s is given an angular accelerationof 2.15rad/s2. Through what angle has the wheel turned when itsangular speed reaches 72.0 rad/s
A charged particle of mass m and positive charge q moves in a uniform constant electric and magnetic fields, E pointing in the y direction and B in the z direction, Find the electric force on the particle
A 209-kg log is pulled up a ramp by means of a rope that isparallel to the surface of the ramp. The ramp is inclined at 31.0° with respect to the horizontal.
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