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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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Two positive point charges, each of which has a charge of 4.3E-9 are located at y=+.10m and y+-.10m, What is the direction of this force
A 30 k? resistor has a current of 63 mA passing through it. Determine the voltage drop across the resistor
In the absence of air resistance, a projectile is launched from and returns to ground level. It follows a trajectory similar to that , What is the new range
An object executing simple harmonic motion has a maximum speed of 4.9 m/s and a maximum acceleration of 0.70 m/s2. Find the amplitude of this motion
A cat drops from a shelf 3.7ft above the floor and lands on all four feet. His legs bring him to a stop in a distance of 12 cm.
A circular coil consists of 60 turns of wire wound around the rim of a plywood disk of radius .15 m. what is the magetic field produced at the center of this disk
define the magnitude of the external field. The Speed time graph of a particle moving along a fixed direction is shown below. Obtain the distance travelled by the particle between t=0 and t=10s. What is the average of the particle over this interva..
a person is 1.8 m tall, standing upright. His heart is 1.4m above his feet. He is doing a head stand. Calculate the hydrostatic blood pressure in his feet
For the infinite square well problem an electron spends 40% of its time in the n=3 state and 60% of its time in the n=5 state. Write down an expression for its wave function in terms of the eigenfunctions [(2/L)^1/2]*sin(n*pie*x/L) . What is the aver..
Converting sunlight to electricity with solar cells has an efficiency of 15%. What is the theoretical maximum efficiency
A red ball is thrown down with an initial speed of 1 m/s from a height of 27 meters above the ground. How long does it take the red ball to reach the ground
a suspicious-looking man runs as fast as he can along a moving sidewalk from one end to the other taking 4.00 s. then
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