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A disk of thickness 1 mm and radius equal to that of 1.5 Fresnel's zones is placed perpendicular to the line connecting the light source and detector. Evaluate the detected light intensity if it was i0 without the disk.
The angular resolution of a radio telescope is to be 0.100 degrees when the incident wave has a wavelength of 3.00mm. What minimum diameter is required for the telescope's receiving dish
A 50.0 kg child stands at the rim of a merry-go-round of radius 2.10 m, rotating with an angular speed of 2.90 rad/s. What is the child's centripetal acceleration
an initially stationary block of mass m on a floor. A force of magnitude F = 0.580·mg is then applied at upward angle ? = 16°. What is the magnitude of the acceleration of the block across the floor if (a) ?s = 0.600 and ?k = 0.500
How long would it be on the incline before it arrives back at bottom.
A cube of side of length 0.55 m has a temperature of 310 K and is in a room surrounded by 15.8ºC walls. what is the energy loss rate of the cube
Two capacitors of capacitance 6.00 microFarad and 8 microfarad are connected in parallel, What is the potential difference across the 6.00-uF capacitor
What is the Lens Equation? What do o, i and f stand for in the equation and what are the five parts of the Optical Bench used in this experiment? Briefly describe what each part does.
The time required for one complete cycle of a mass oscillating at the end of a spring is 0.25s. what is the frequency of oscillation
An organ pipe is open at one end and closed at the other. The pipe is designed to produce the note middle C, What is the frequency of the second harmonic
Sirius has a luminosity of 8.4 * 10^27 Watts and a mass of 2.1 times the mass of the Sun, How much hydrogen does Sirius convert into helium each second
Define potential difference. What is the difference between electric potential and electric potential energy? What is the unit for potential difference
In the amusement park ride known as Magic Mountain Superman, powerful magnets accelerate a car and its riders from rest to 38 m/s (around 90 mi/h) in a time of 7.5 s. The mass of the car and riders is 3600 kg. Find the average net force exerted on th..
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