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A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 140-kg laser sensor that measures the thickness of the ice (see the drawing). The helicopter and the sensor both move only in the horizontal direction and have a horizontal acceleration of magnitude 2.73 m/s2. Ignoring air resistance, find the tension in the cable towing the sensor.
The particles in the figure below (m1 = 1.8 kg and m2 = 3.5 kg) undergo an elastic collision in one dimension. Find the velocities of the two particles after the collision
A flowerpot falls from the ledge of an apartment building. A person in an apartment below, coincidentlly holding a stopwatch, notices it takes 0.7s for the pot to fall past his window, which is 18m high.
A 1200 turn coil of wire that is 3.00 cm in diameter is in a magnetic field that drops from 0.750 T to 0 T in 15.0 ms. What is the induced emf in the coil
A scuba diver has her lungsfilled to half capacity (2 L) when she is 12 m below thesurface. what will be the volume of her lungs (in liters) at the surface
Suppose that a projectile which is subject to a linear resistive force is thrown vertically down with a speed Vyo which is greater than the terminal speed Vterm. Describe and explain how the velocity varies with time and make a plot of Vy against ..
Given: The speed of sound in air is 343m/s. The length of a hollow pipe is 632 cm. The air column in the pipe is vibrating and has four nodes. Determine the frequency of the sound wave in the hollow pipe.
A 250g , 49.0 cm diameter turntable rotates on frictionless bearings at 60.0 rpm. What is the turntable's rotation angular velocity when the block reaches the outer edge
At some automobile toll-collecting stations, the thin metal wire sticks up from the road and makes contact with cars before they reach the toll collector. What is the reason of this wire.
1- if an area is described as a good air mass source region what information can you give about it?2- it is summer.
An 8.00g bullet is fired into a 10.kg block of wood suspended on a string. calculate the initial velocity of the bullet
a proton moves in a circle with a speed of 280 m/s through a uniform magnetic field of 2t directed perpendicular to the circular path. compute the orbital radius of the proton
In frame S, event B occurs 2 microseconds after event A and event A occurs at the origion whereas event B on the x-axis at x=3.3km. How fast must an observer be traveling along the +x axis
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