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The force vector. A has a magnitude of 75.0 newtons (N) and points due east. The force vector B has a magnitude of 139 N and points 74.1 ° north of east. Find the (a) magnitude and (b) direction of A - B. (Give the direction as a positive angle with respect to due east). Find the (c) magnitude and (d) direction of B - A. (Give the direction as a positive angle with respect to due west)
if a particle undergoes simple harmonic motion (SHM) withamplitude 0.25m, what is the total distance it travels in one period
A gas expands, changing its volume by +4.24×10-4 m3 while at a constant pressure of 6.44×105 Pa. What is the work done by the surroundings on the gas
A 13 kg child on a playground swing moveswith a speed of 2.9 m/s when the 6.0 mlong swing is at its lowest point. What is the angle that the swingmakes with the vertical when the child is at the highest point?
A violin string has a length of 0.360 m and is tuned to concert G, with fG = 392 Hz. (a) How far from the end of the string must the violinist place her finger to play concert A, with fA = 440 Hz? cm from the bridge (b) If this position is to remain ..
A bolt comes loose from underneath an elevator that is moving upward at a speed of 5.9 m/s. The bolt reaches the bottom of the elevator shaft in 2.5 s. How high up was the elevator when the bolt came loose
A horizontal wire of length 0.13 m, carrying a current of 2.8 A, isplaced in a uniform external magnetic field. When the wire ishorizontal, it experiences no magnetic force. When the wire istilted upward at an angle of 23°, it experiences a magnet..
Light is reflected from a transparent coffee table. When the angle of incidence is 52.2°, find the index of refraction of the material of the table
A solenoid of length 6.3 cm and diameter 0.88 cm is wound with 178 turns per cm. The current is decreasing at a rate of 38.0 A/s. What is the induced emf in one of the windings
In astronomy, a parsec ( pc) is dened as the distance at which an object with a size of 1 astro-nomical unit (AU) would subtend an angle of 1 arc-second. Find the conversion factor between parsecs and astronomical units.
What is the thinnest soap film (excluding the case of zero thickness) that appears black when illuminated with light with a wavelength of 580
A magnetic field of 3 Tesla is oriented into the page. A 10 cm long conducting bar is pulled to the right at a constant speed of 3.4 m/s. What is the power supplied by the person pulling the bar
If a boat and its riders have a mass of 1500kg and the boat drifts in at 1.4m/s how much work does Sam do to stop it
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