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A Cessna aircraft has a lift-off speed of 120 km/h.
(a) What minimum constant acceleration does this require if the aircraft is to be airborne after a takeoff run of 270 m?(b) How long does it take the aircraft to become airborne?
a storage battery of emf 8.0 v and internal resistance 0.5nbspomega is being charged by a 120 v dc supply using a
A 10.0-g piece of Styrofoam carries a net charge of -0.700 ?C and suspended in equilibrium above the center of a large, What is the charge per unit area on the plastic sheet
A 110 volt hair dryer has 2 settings: 850 watts and 1250 watts. Determine the resistance of the dryer for both settings
A rescue helicopter lifts a 91.2-kg person straight up by means of a cable. What is the tension in the cable
While taking photographs in Death Valley on a day when the temperature is 52.0°C, What current does he register there if the temperature is -88.0°C
A proton is moving toward a wire that carries current in the direction shown. What is the direction of the force on the proton
A person gives a box a shove so that it slides up a ramp, then reverses its motion and slides down. what is the direction of the force of friction
A proton is released from rest in a uniform electric field of magnitude 409 N/C. Find the acceleration of the proton and direction
A transformer is to be used to provide power for a computer disk drive that needs 7.0 V (rms) instead of the 120 V (rms) from the wall outlet. Find the number of turns in the secondary
One of the harmonic frequencies of tube A with two open ends is 845 Hz. The next-highest harmonic frequency is 910Hz.
Scientists want to place a 4200 kg satellite in orbit around Mars. What is the force of attraction between Mars and the satellite
A fan blade rotates with angular velocity given by Wz(t)=r-B t^2 For the next two parts assume that the constants and are defined as follows: r= 5.25 rad/s B= 0.835 rad/s^3 -------------------------- A)Calculate the instantaneous angular acceleration..
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