C3 нн

Q: There are two interactions that involve a stone at rest on the ground. One is between the stone and ...

A: The first interaction that involves a stone at rest on the ground is between the Earth and the stone...

Q: A uniform cross-sectional area U-tube is open to the atmosphere, is partially filled with mercury (d...

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Q: A boy jumps into a stationary boat with a speed of 5 m/s. Right after, the boat along with the boy f...

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Q: What is the result of mirror image of a sound signal combining with the sound itself?

A: When a sound wave possessing certain amplitude gets reflected from a surface it produces a mirror im...

Q: Find the total resistance of the given circuit.

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Q: A skier starts from rest at the top of a hill that is inclined at 10.9° with respect to the horizont...

A: Given Angle of the incline θ = 10.9o Length of the slope L = 220 m Coefficient of friction μk = 0.07...

Q: (a) Calculate the current in the R5 = 8.56ohm resistor. (b) Calculate the current in the R6 = 4.33oh...

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Q: Why can the tremor of the ground from a distant explosion be felt before the sound of the explosion ...

A: Tremor is the vibration in ground due to shock wave or due to sound wave. In the earthquake the soun...

Q: An ideal gas heat engine operates in a Carnot Cycle between temperatures of 266°C and 115°C. It abso...

A: Given data: Thot = 266°C = 539 K Tcold = 115°C = 388 K   Solution: Efficiency = 1 - ( Tcold / Thot )...

Q: For an ideal heat engine operating between thermal reservoirs at Th=1000 degree and Tc=110 degree, t...

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Q: What is the function of fuses or circuit breakers in a circuit?

A: The function of fuses or circuit breakers in a circuit is to disconnect the circuit during overloadi...

Q: A “clever” technician decides to heat some water for his coffee with an x-ray machine. If the machin...

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Q: In the phenomenon of superconductivity, what happens to electrical resistance at low temperatures?

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Q: Answer the following. (a) What is the surface temperature of Betelgeuse, a red giant star in the con...

A: A red giant star radiates the wavelength,

Q: c. The diagram shows an object moving counterclockwise with uniform circular motion. Draw/explain th...

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Q: An x-ray technician works 5 days per week, 50 weeks per year. Assume the technician takes an average...

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Q: Why will dust be attracted to a DVD wiped with a dry cloth?

A: When a DVD is wiped with dry cloth, electron transfer takes place. It may be from either DVD to dry ...

Q: Why is there no electric field at the center of a charged spherical conductor?

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Q: What happens to electrons in any charging process?

A: During charging process, electrons get transferred from one material to another. When the object bei...

Q: determine the saturation current in a p-n junction diode at 256 K if a voltage of 0.0678 V produces ...

A: Given information: Here, T is the temperature, V is the forward voltage and I is the forward curren...

Q: During a rockslide, a 390 kg rock slides from rest down a hillside that is 460 m long and 300 m high...

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Q: Why does a dance floor heave only when certain kind of dance steps are being performed?

A: Different dance steps have different frequencies. And the dance floor has one particular frequency w...

Q: How many 1.20 µF capacitors must be connected in parallel to store a charge of 1.50 C with a potenti...

A: Write the expression for the charge on the capacitor:

Q: What are three principal characteristics of musical tone?

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Q: How do the charges on opposing plates of a capacitor compare?

A: The charges on each opposing plates of a capacitor are equal in magnitude.

Q: What is the difference between centripetal acceleration and centrifugal force?

A: For an object moving in a circular path, even the speed is constant, it will experience acceleration...

Q: In what way are magnetic poles very different from electric charges?

A: Magnetic poles are different from electric charges. Magnetic poles are two types which are known as ...

Q: the filament of an incandescent lamp has a 150 Ohms resistance and carriesa direct current of 1.00 A...

A:  The expression for the average power of pointing vector is,

Q: A uniform cross-sectional area U-tube is open to the atmosphere, is partially filled with mercury (d...

A:

Q: Distinguish between analog and digital for how the sound signal is captured on phonograph records ve...

A: Analog recording on the phonograph is the recording where there is continuous trace of motion of sou...

Q: What is the error in saying the source of electrons in a circuit is the battery or generator?

A: A continuous potential difference is needed for the flow of electric charges. The battery or generat...

Q: Four point charges are located at the corners of a rectangle as shown in the figure. Find the net fo...

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Q: In terms of biological damage, how many rad of heavy ions are equivalent to 100 rad of x-rays?

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Q: What condition is necessary for sustained flow of electric charge through a conducting medium?

A: For a sustained flow of electric charge though a conductor, a steady potential difference or voltage...

Q: How does the charge of one electron compare to that of another electron?

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Q: Photons of wavelength 450 nm are incident on a metal. The most energetic electrons ejected from the ...

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Q: Prove that kinetic energy of system in lab system is always greater than the kinetic energy of the s...

A: The Lab frame is a well-defined frame in which an object is moving with some velocity. And when we c...

Q: To impart the greatest momentum to an object, should you exert the largest force possible, extend th...

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Q: A rocket becomes progressively easier to accelerate as it travels through space. Why is this so? (Hi...

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Q: A 33.0 cm long spring is hung vertically from a ceiling and stretches to 37.5 cm when an 8.00 kg mas...

A: The stretched length of the spring is: (a) The formula for the spring force and weight is:

Q: When it is possible for one wave to cancel another?

A: Yes it is possible for one wave to cancel each other.

Q: 2. A car travels at a constant speed around a circular track whose radius is 3 km. The car goes once...

A: Given,  

Q: Why are there probably no permanently aligned magnetic domains in Earth's core?

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Q: The work function for nickel is 5.15 eV. (a) Convert the value of the work function from electron vo...

A: a) The value of work function in Joule is, b) The required cutoff frequency is,

Combination of Capacitors

The connection of capacitors can be established in a circuit in two ways.