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Question1
When two tuning forks are struck simultaneously, 9 pulses of increased sound intensity per second are heard. Frequency of one fork is 600 Hz. From this, you can determine the two possible frequencies for the other fork. While a piece of tape is attached to the 600-Hz fork, its frequency decreases slightly and the frequency of intensity pulses increases. What is frequency of the other fork?
Question2
A diverging lens (f = -13 cm) is located 23.0 cm to the left of a converging lens (f = 33.8 cm). A 2.60 cm tall object stands to the left of the diverging lens, exactly at its focal point.
(a) Find out the distance of the final image relative to the converging lens.
(b) What is height of the final image (including proper algebraic sign)?
A pendulum of length 1.5 m is held out to point A. At the vertical position, an overhang effectively cuts the length of the pendulum by an amount equal to 1.09 m. (That is, 1.0 m is no longer free to swing.) How long does this pendulum take for one o..
A parallel plate capacitor has a capacitance of 6.3 µF when filled with a dielectric. evaluate the dielectric constant of the dielectric
A step-down transformer (turns ratio = 1:8) is used with an electric train to reduce the voltage from the wall receptacle to a value needed to operate the train, What is the current in the primary coil?
If the moment of inertia of the wheel about its axle is 0.30kg*m2, what is the magnitude of the frictional torque.
The potential difference across a cell membrane from outside to inside is initially at -90 mV (when in its resting phase). How many ions move through the membrane
At a height of ten meters above the surface of a freshwater lake, a sound pulse is generated. How deep is the lake
Soccer ball is kicked with a speed of 11.50 m/s at an angle of 30.0° above the horizontal. If the ball lands at the same level from which it was kicked, how long was it in the air.
3.00 m-long, 350 steel beams extends horizontally from the point where it has been bolted to the framework of a new building under construction. A 66.0 construction worker stands at the far end of beam.
In a material having an index of refraction n , a light ray has frequency f, wavelength ?, and speed v. What is the frequency of this light in vacuum and in a material having refractive index n1
An open container holds 0.550 kg of ice at - 15.0 degree celsius. The mass of the container can be ignored. After how many minutes does the ice start to melt
Conclude the magnitude of angular acceleration
A concert loudspeaker suspended high off the ground emits 32W of sound power, What is the sound intensity level at the position of the microphone
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