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A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 136 kilogram laser sensor that measures the thickness of the ice. The helicopter and the sensor both move only in the horizontal direction and have a horizontal acceleration of magnitude 2.8 m/s. Neglecting air resistance, obtain the tension in the cable towing the sensor.
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To transmit only portions of an input wave lying on one side of an amplitude boundary, you would use a.
a hollow aluminum cylinder 24.0 cm deep has an internal capacity of 2.000 l at 21.0degc. it is completely filled with
An alpha particle (helium nucleus, charge +2e) starts fromrest and travels a distance of 3.0 cmunder the influence of a uniform electric field of magnitude10.0 kV/m. What is the final kinetic energy of the alpha particle
what is the highest possible theoretical effeciency of a heat engine operating with a hot reseroir of furnace gases at
A hiker, who weighs 919 N, is strolling through the woods and crosses a small horizontal bridge. What is the magnitude of the force that a concrete support exerts on the bridge at the near end
A parallel combination of an 10 resistor and an unknown resistor R is connected in series with a 13 resistor and a battery. What is the unknown resistance R
A road slopes upward thus that it climbs 1.0m for each 12m of distance along the road. A car whose weight is 10kN moves up the road at a constant speed of 24m/s. Discover the minimum power necessary by the engine to maintain this speed up the incline..
A simple harmonic oscillator consists of a block of mass 4.kg attached to a spring of spring constant 153 N/m. When t = 2 s, the position and velocity of the block are x = +0.129 m and v = +3.415 m/s.
A bullet is fired through a board 13.5 cm thick, with a line of motion perpendicular to the face of the board. what is its acceleration as it passes through the board
a parallel-plate capacitor with air between the plates is connected across a voltage source. this source establishes a
A 120-V motor has mechanical power output of 2.60 hp. It is 85.0% efficient in converting power that it takes in by electrical transmission into mechanical power. Find the energy delivered to the motor by electrical transmission in 3.20 h of operat..
a diverging lens with focal length f-31.5 cm is placed 14.0 cm behind a converging lens with f 20.0 cm. what is the
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