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Solve the each part of given question:
Question: A man in search of his dog drives first 12.5 mi northeast, then 16.5 mi straight south, and finally 6.31 mi in a direction 32.1° north of west.
Part A: What is the magnitude of his resultant displacement?
Part B: What is the direction of his resultant displacement? Express your answer counterclockwise relative to the positive x-axis.
I know the correct answer but explain how to get this answer!
An plane and pilot have a total mass of 168 kg. While executing a banked curve of radius 20 m at a speed of 12 m/s
Three particles of mass m = 2.4 kg are fastened to three rods of length d = 0.69 m and negligible mass. The rigid assembly rotates about point O at angular speed ? = 7.5 rad/s. About O, what are (a) the rotational inertia of the assembly, (b) the mag..
as part of an exercise routine an 81.9 kg person climbs 40.4 m up a vertical rope. how many food calories are expected
Think about an atomic nucleus to be equivalent to a one-dimensional infinite potential well with L = 1.1 x 10-14 m, a typical nuclear diameter. What would be the ground-state energy (in GeV) of an electron if it were trapped in such a potential well?
A 50,000 kg locomotive is traveling at 60.0 m/s when its engine and brakes both fail. How far will the locomotive roll before it comes to a stop
A proton moves perpendicularly to a uniform magnetic field at 5.0 107 m/s and exhibits an acceleration of 1.0 1013 m/s2 in the +x-direction when its velocity is in the +z-direction. find the magnitude and direction of the field.
A model-train transformer plugs into 120-V ac, What voltage is present across the tracks
A piano tuner sounds two strings simultaneously. One has been previously tuned to vibrate at 301.0 Hz. What was the original frequency of the untuned string
A airplane travelling at 52 m/s (w) down a runway begins accelerating uniformly at 2.8 m/s squared (w) find what is the planes velocity after 5.0 second
A heat pump is essentially an air conditioner installed backward. It extracts energy from colder air outside and deposits it in a warmer room. Suppose that the ratio of the actual energy entering the room to the work done by the device's motor is ..
A rescue plane is flying at 300 m above the ground at 210 km/hr. It is going to drop a package of supplies to some survivors on the ground. how far from the survivors should it drop the package
an airplane whose airspeed is 550 kmh heads due north. but a 80 kmh wind coming from the east suddenly begins to blow.
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