R2 12V

Q: (a) The distance to Polaris, the North Star, is approximately 6.44 × 1018 m. If Polaris were to burn...

A:

Q: What tool is used to measure mass?

A: Beam balance or spring balance or electronic balances are used to measure mass.

Q: (a) How much power is dissipated in a short circuit of 240-V AC through a resistance of 0.250 Ω ? (b...

A:

Q: A weight lifter stands on a bathroom scale. (a) As she pumps a barbell up and down, what happens to ...

A: Part (a): The reading on the scale will be high than the actual weight of the barbell as when the li...

Q: Using a rope that will snap if the tension in it exceeds 387 N, you need to lower a bundle of old ro...

A: Apply Newton’s second law

Q: Physics Question

A: (a) The area under the velocity versus time curve results in the displacement of the object. The for...

Q: (a) Find the potential difference DVe required to stop an electron (called a “stopping potential”) m...

A: It is given that,

Q: An AC power generator produces 50 A (rms) at 3 600 V. The voltage is stepped up to 100 000 V by an i...

A: It is given that,

Q: A photon produces a proton−antiproton pair according to the reaction γ → p +P- . What is the minimum...

A: Given data:   The charge of an electron  is: q = 1.6×10-19 C  The Planck's constant is: h = 6.63 × 1...

Q: (a) Calculate the power per square meter reaching Earth’s upper atmosphere from the Sun. (Take the p...

A:

Q: On May 26, 1934, a streamlined, stainless steel diesel traincalled the Zephyr set the world’s nonsto...

A:

Q: A police radar has an effective range of 1.0 km, and a motorist's radar detector has a range of 1.9 ...

A:

Q: (a) Using the values for density and the speed of ultrasound shown,          show that the acoustic ...

A:

Q: A train stopping at two stations 4 km apart takes 4 min on the journey from one of the station to an...

A: The initial displacement,

Q: please give ( well explained and understandable writing )  An empty plastic or glass dish being remo...

A: Microwave oven consists of electromagnetic waves. The electromagnetic waves are formed due to the vi...

Q: Find the average binding energy per nucleon of

A:

Q: Physics Question

A:

Q: (a) If C = 50 mF in the figure shown below, what is the equivalent capacitance between points A and ...

A:

Q: A 65-g ice cube is initially at 0.0°C. (a) Find the change in entropy of the cube after it melts com...

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Q: How do sound vibrations of atoms differ from thermal motion?

A:

Q: Find the particle's horizontal position x(t) and velocity v(x) at any point in a fluid whose drag fo...

A: (a) Suppose a particle is traveling with initial speed v0 and enters a region where it experiences a...

Q: A thin film of glycerin (n = 1.473) of thickness 524 nm with air on both sides is illuminated with w...

A: Refractive index of glycerin , n=1.473  Thickness of the thin film , t=524 nm                       ...

Q: 8) A siphon is used to drain water from a tank as illustrated in figure. Assume steady flow without ...

A: It is given that,

Q: Identical rays of light enter three transparent blocks composed of different materials. Light slows ...

A: As identical ray incident on all the three blocks, the velocity of the light in the blocks will only...

Q: What is the effect of streamlining on (a) friction drag and (b) pressure drag? Does the total drag a...

A:

Q: A new type of force was discovered by physicists with the following expression: a Fnew + Be* + 3x4 w...

A:

Q: Only some of the people on the daytime side of Earth can witness a solar eclipse when it occurs, whe...

A: Because the shadow cast by the Moon upon Earth is very small (the effect of the penumbra),only some ...

Q: (a) What magnitude point charge creates a 10,000 N/C electric field at a distance of 0.250 m?       ...

A:

Q: In the circuit of Figure P18.21, determine (a) the current in each resistor and (b) the potential di...

A: Kirchoff’s rules are applied for complete analysis of the circuit.  

Q: a relation between force F and charge q with the intensity of the electric field E is     a. E...

A: The relation between electric field and the force 

Q: An automobile starter motor has an equivalent resistance of 0.0500 Ω and is supplied by a 12.0-V bat...

A: Given data:     The voltage of the battery is: E = 12 V The internal resistance of the battery is: r...

Q: A string wound around a uniform disc of mass M and radius R . The disc is released from rest with st...

A: Given Data The mass of the disc is M The radius of the disk is R.   a) The free-body diagram of the ...

Q: A platinum resistance thermometer has resistances of 200.0 Ω when placed in a 0°C ice bath and 253.8...

A:

Q: What astronomical event would be seen by observers on the Moon at the time Earth experiences a lunar...

A: The lunar eclipse on Earth will be a solar eclipse on the moon. During the lunar eclipse, the moon d...

Q: To defog the rear window of an automobile, a very thin transparent heating element is attached to th...

A: Given data The uniform heat flux is: Q = 1300 W/m2 The thickness of the rear window is: t = 5 mm = 0...

Q: A rifle bullet is cylindrical. Why?

A: Magnus effect is an effect that can be observed when a body generally spheres revolves or spins in t...

Q: A wire is made out of a special steel alloy with Y=2.00×1011Pa, density ρ=7800kg/m3, radius 1.00mm a...

A:      

Q: How does pressure vary with water depth?

A: Pressure increases with water depth.

Q: A force of 100 N is applied to the brake pedal, which acts on the cylinder—called the master—through...

A: The given values are,

Q: In a dairy plant, milk at 4C is pasteurized continuouslyat 72C at a rate of 12 L/s for 24 hours a da...

A: For the pasteurizing section, apply energy balance for the steady flow system, and solve for the rat...

Q: Calculate the self-inductance of a 10.0 cm long, 4.00 cm diameter solenoid that has 200 coils.

A:

Q: 6) A blimp is filled with helium can lift 55 kg? The density of helium is one-seventh that of air, a...

A: Given : mass of load, m = 55 kg  density of helium, d = dair / 7 = (dwater/800) / 7  We know,  densi...

Q: Radiation from a point source follows an inverse-square law in which the amount of radiation receive...

A: At 2m, the Geiger reading is,

Q: When is a heat exchanger classified as being compact? Do you think a double-pipe heat exchanger can ...

A: Yes, double-pipe heat exchanger can be classifiedas a compact heat exchanger because the two fluid s...

Q: Certain types of dinosaurs were bipedal (walked on two legs). What is a good reason that these creat...

A: The bipedal dinosaurs had long tails along with long necks.

Q: Consider the following distribution of objects: a 2.00-kg object with its center of gravity at (0, 0...

A:

Q: What is the length of a tube that has a fundamental frequency of 176 Hz and a first overtone of 352 ...

A:

Q: Consider the following figure. a. What force in newtons should the woman in the figure exert on the ...

A: Given data The mass of the woman is: m = 50 kg The center of gravity of the woman body is: lCG = 0.9...

Q: Consider a soap bubble. Is the pressure inside the bubble higher or lower than the pressure outside?

A: The air inside the soap bubble will add a pressure to the bubble from inside and the air surrounding...