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Light that passes through a series of three polarizing filters emerges from the third filter horizontally polarized with an intensity of 200 W/m2. If the polarization angle between the filters increases by 25o from one filter to the next, find the intensity of the incident beam of light, assuming it is initially unpolarized.
A 140 g air-track glider is attached to a spring. The glider is pushed in 12.00 cm and released. A student with a stopwatch finds that 9 oscillations take 10.0 s.
A steel piano wire 1.35 m long has a cross- sectional area of 0.00751 cm2. When under a tension of 68.9 N, how much does it stretch
An object with a net charge of 44 µC is placed in a uniform electric ?eld of 554 N/C, directed vertically. The acceleration of gravity is 9.81 m/s^2. What is the mass of this object if it ?oats in this electric ?eld?
Balance the meter stick at its center of gravity and hang an unknown mass (e.g. your keys) at the 90 cm mark. Place the 200-g mass on the meter stick at a location until equilibrium is reached. Record this position. what is the advantage of having th..
What would some challenges and benefits be for community health nurses in providing care for different communities? For similar communities?
A bicycle wheel will be set up so that it can be suspended from a rope as it spins. What is the direction of the torque vector for the accompanying diagram
2 positive charges each is 4 micro C located at the positions (0,0) and (20,0) and all coordinates are in cm, calculate the electric field due to the two charges
Which of the following devices use a diffraction grating in order to function?
An electric vehicle starts from rest and accelerates at a rate a1 in a straight line until reaches a speed of v. How far does the vehicle travel from start to stop
What are the advantages of placing capacitors in parallel?What are the disadvantages? What are the advantages of placing capacitors in series? Whatare the disadvantages?
A spherical blackbody radiator has a temperature of 159°C. Its radius is 0.253 m. what is the net rate of energy radiated from the sphere?
you have a concave spherical mirror with a 11.5-cm radius of curvature. you place an object on the mirrors axis 17.7 cm
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