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A girl delivering newspapers covers her route by traveling 4.00 blocks west, 4.00 blocks north, and then 6.00 blocks east.
(a) What is her resultant displacement? . Your response differs from the correct answer by more than 100%. blocks at ° north of east
(b) What is the total distance she travels?
Measurements of the radioactivity of a certain isotope tell you that the decay rate decreases from 8305decays per minute, What is the half-life T1/2 of this isotope
A ray of light is incident on the surface of a block of clear ice at an angle of 33.0° with the normal. Find the angle between the reflected and refracted light
Three point charges have equal magnitudes, two being positive and one negative. These charges are fixed to the corners of an equilateral triangle, as the drawing shows. The magnitude of each of the charges is 7.1 µC, and the lengths of the sides o..
A 25 g of copper pellets are removed from a 300 C oven and immediately dropped into 120 mL of water at 18 C in an insulated cup. What will the new water temperature be.
A stunt man drives a car at a speed of 20m/s off a 30-m-high cliff, How far from the base of the cliff does the car land and What is the car's impact speed
A 0.57-mH inductor and a 131-? resistor are placed in series with a 24-V battery. What is the maximum energy stored in the inductor
A moving particle encounters an external electric field that decreases its kinetic energy from 8650 eV to 7540 eV as the particle, Determine the charge of the particle. Include the algebraic sign (+ or ?)
Consider the following pipe assembly containing a permeable filter of length L=20cm, area A=20cm^2, and permeability of 4 millidarcys. what is the velocity of the flow through the filter section
what happens to light of a particular frequency when it is incident upon the material that natural frequency is the same as the frequency of the light.
At a distance r away from a point charge q the electric potential V = 500.0 V and the electric field has a magnitude of 220.0 N/C
The aurora is caused when electrons and protons, moving in earth's magnetic field of 5x10^-5 T, collide with molecules of the atmosphere and cause them to glow. What is the radius of the circular orbit for (a) an electron with speed 1.0×10^6 and (b) ..
Find out separation between the two sources
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