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Can please explain question As an airplane taxies on the runway with a speed of 16.0, a flight attendant walks toward the tail of the plane with a speed of 1.22 . What is the flight attendant's speed relative to the ground?
An oscillator consists of a block attached to a spring (k = 475 N/m). At some time t, the position (measured from the system's equilibrium location), velocity, and acceleration of the block are x = 0.420 m, v = -11.9 m/s, and a = -139 m/s2. a)Calcula..
Two forces, F1= (1.35i-0.95j)N and F2= (-0.85i+1.20j)N are applied on a moving object of mass 0.30 kg. What is the work done by the two forces
Male Rana catesbeiana bullfrogs are known for their loud mating call. The call is emitted not by the frog's mouth but by its eardrums, which lie on the surface of the head. And, surprisingly, the sound has nothing to do with the frog's inflated th..
A flight attendant pulls her 70 N flight bag a distance of 378 m along a level airport floor at a constant velocity. Find the work she does on the flight bag
A dc motor is connected to a constant emf of 13.9 V. The resistance of its windings is 2.0 ?. What current does it draw at normal operating speed
A satellite has a mass of 101 kg and is located at 2.03 106 m above the surface of Earth. What is the magnitude of the gravitational force on the satellite
If you observe light reflected from Saturn's rings, youshould see a redshift at one edge of the rings and a blueshift atthe other edge. what is the orbital velocity of particles at the outer edge of the rings
A series R–L–C circuit of R= 210ohms , L= 0.950H and C= 2.25uF carries an rms current of 0.270A with a frequency of 100Hz. What is the average rate at which electrical energy is converted to heat in the resistor? P(R)= W What average power is deliver..
A 6500 kg helicopter accelerates upward at 0.59 m/s2 while lifting a 1210 kg car. What is the lift force exerted by the air on the rotors?
question point charge 2.0 uc is located at x 0 y 0.30m point charge -2.0uc is located at x 0 y -0.30 . what are athe
A person weighs 784 N in air and has a body-fat percentage of 23.0 %. What is the overall density of this person's body
Two different electrical devices have the same power consumption, but one is meant to be operated on 120-V AC and the other on 240-V AC. What is the ratio of their currents
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