Physics Waves And Oscillations Level: University
Tuning ForkShould a tuning fork be set into oscillation by striking it with or on a hard object?
Physics Waves And Oscillations Level: University
Organ pipeWhat is the variable used in studying resonance in an air column in
(a) A closed organ pipe of fixed length (b) A resonance tube apparatus?
Physics Heat & Thermodynamics Level: University
A rotating 5 kg solid flywheel ( disk) has a radius of 50 cm and an angular velocity of 20 rads/ second. The wheel is brought to rest and all of the rotational energy of the flywheel goes into heating a surrounding water bath. If the water temperature increases 0.2 degrees celcius what is the mass of the water surrounding the flywheel?
Physics Electrostatics Level: University
Energy of capacitorWhat capacitance should a capacitor have if it is to store 3 x 10 - 3 joules of energy when connected to a 12 volt battery?
Physics Work,Power & Energy Level: University
How high is a waterfall if 300 kg of water acquires a kinetic energy of 400.000 joules by falling from the top of the waterfall to the ground?
Physics Work,Power & Energy Level: University
How high is a waterfall if 300 kg of water acquires a kinetic energy of 400,000 joules by falling from the top of the waterfall to the ground?
Physics Work,Power & Energy Level: Middle School
Rotational motionA rolling solid wheel (disk) with a mass of 5kg moves forward at a speed of 20 meters/ second determine it's total kinetic energy.
Physics Electrostatics Level: University
CapacitanceAn electrical capacitor of 1.5 micro-farands is connected to a 6 volt battery. How much potential energy is stored in the capacitor?
Physics Work,Power & Energy Level: University
An automobile weighing 2800 lbs. is traveling 55 MPH. What is the kinetic energy and what would be the speed of the atomobile if the kinetic energy were doubled?
Physics Ray Optics Level: University
RefractionAn object of height 3.00 cm is placed 12.0 cm from a diverging lens of focal length-12.0cm. Draw a ray diagram to find the height and position of the image.
Physics Ray Optics Level: University
Reflection by concave mirrorAn object is placed in front of a concave mirror with a 25.0 cm radius of curvature. A real image twice the size of the object is formed. At what distance is the object from the mirror? Diagram to illustrate.
Physics Ray Optics Level: University
RefractionA defect in a diamond appears to be 2.0 mm below the surface when viewed from directly above that surface. How far beneath the surface is the defect?
Physics Ray Optics Level: University
Polarization by Refraction(a) Sunlight reflected from the smooth ice surface of a frozen lake is totally polarized when the incident light is at what angle with respect to the horizontal? (b) In what direction is the reflected light polarized?
(c) Is any light incident at this angle transmitted into the ice? If so at what angle below the horizontal does the transmitted light travel?
Physics Ray Optics Level: University
Total internal ReflectionCalculate the critical angle for a sapphire surrounded by air.
Physics Ray Optics Level: University
RefractionA glass lens has a scratch- resistant plastic coating on it. The speed of light in the glass is 0.67c and the speed of light in the coating is 0.80c. A ray of light in the coating is incident on the plastic- glass boundary at an angle of 12.0 degree with respect to the normal. At what angle with respect to the normal is the ray transmitted into the glass?
