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A helicopter flies over the arctic ice pack at a constant altitude, towing an airborne 123 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 magnitude3.03 m/s2. Ignoring air resistance, evaluate the tension in the cable towing the sensor.
Two trees have perfectly straight trunks and are both growing perpendicular to the flat horizontal ground beneath them. What is the magnitude of the squirrel's displacement
q1. what current is required in the windings of a long solenoid that has 1710 turns uniformly dispersed over a length
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. What is the average energy of the electron
If the phase angle for a block-spring system in SHM is pi/6 rad and the block's position is given by x = xm cos(wt + pi). what is the ratio of the kinetic energy to the potential enery at time t = 0
A person walks into a room that has, on opposite walls, two planemirrors producing multiple images. Find the distances from theperson to the first three images seen in the left-hand mirror, whenthe person is 7.00 ft fromthe mirror on the left wall an..
A sanding disk with rotational inertia 1.1 multiply.gif 10-3 kg·m2 is attached to an electric drill whose motor delivers a torque of 12N·m about the central axis of the disk. calculate the angular momrntum of the disk
at some instant the velocity components of an electron moving between two charged parallel plates are vx ms and vy
A proton moving at v1 = 7.9Mm/s collides elastically and head-on with a second proton moving in the opposite direction at v2 = 8.6Mm/s. Find the velocity of the first proton after the collision
An aluminum rod is 18.5 cm long at20°C and has a mass of 350 g. If 10500J of energy is added to the rod by heat, what is the change in length of the rod
a point charge with q1 2.8 c is located at x ?3.0 m y 0 and a second point charge with q2 4.4 c is at x 1.0 m y
High-speed stroboscopic photographs show that the head of a200-g golf club is traveling at 55m/s just before it strikes a 46-ggolf ball at rest on a tree. What is the speed of the golf ball just after impact
A spider hangs from a strand of silk whose radius is5.8x10-6 m. The density of the silk is 1100kg/m3. When the spider moves, waves travel along thestrand of silk at a speed of 310 m/s. Determine the mass of the spider.
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