A cellphone emits a spherical radio waves. The intensity of the waves I at a distance of d from the phone.What is the intensity of the radio waves at a distance of 3d from the phone?

Q: A single resistor wired to a battery as shown in (Eigure 1) below. Define the total power dissipated…

A: Solution: Given: Ro = total circuit resistance in old circuit = R Rn = total circuit resistance in…

Q: a positively charged particle is moving with a velocity v through a magnetic field B

A: Given: A positively charged particle. Velocity of particle is v directed towards right or…

Q: You have the following three resistors in parallel rated at 5 W. a. What is the safe total voltage?…

A: Part a) Power P = V²/R  Since Power rated is given in resistor = 5watt So from the above formula V=…

Q: A 20kg child is bouncing in a bounce house on his birthday. During a certain interval after the kid…

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Q: K-space symmetry is referred to as ________ symmetry. a. Positive b. Negative c. FFT d.…

A: Solution: The given question answer is d. Conjugate symmetry. K-space symmetry is often referred to…

Q: Beginning  with Newton's Second Law F=ma, derive an expression for the impulse F delta t.  Verfiy…

A: GIVEN            Newton's Second Law (F=ma )

Q: Each of the eight conductors in the figure carries 7.24 A of current into or out of the page. Two…

A: Given : Current through each conductor is I = 7.24 A.   This problem can be solved by Ampere's…

Q: A baseball bat balances 76.1 cm from one end. If a 0.500 kg glove is attached to that end, the…

A: Given data; The mass of the glove is m = 0.500 kg The distance of the balance point is x = 0.267 m…

Q: How much heat does a 1.00 kg block of ice at 0 degrees C added to a picnic cooler

A: Given: Mass of ice is m=1 kg Ice melts from 0°C to water at 0°C. Note: 1 kJ=1000 J Find: Heat…

Q: In a 1.30 T magnetic field directed vertically upward, a particle having a charge of magnitude 8.00…

A: Given        magnetic field (B) =1.3T       Magnitude of charge (q)=8.00 μC      Initial velocity…

Q: A length of 8 gauge copper wire has a resistance of 4.8 ohms at a temperature of 22°C.  Find the…

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Q: A wire with current i = 6.08 A is shown in the figure. Two semi-infinite straight sections, both…

A: Solution: Given data: i = 6.08 A R = 2.81 cm B = 0 θ = ? We can use Ampere's law to find the…

Q: A series RC circuit is constructed with a resistor with resistance R=260 ohms and a capacitor with…

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Q: When analyzing more complex circuits, tracing the current from the (+) side to the (-) side of the…

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Q: Physics 2. The right-hand rule allows one to find a property of the interaction of a magnetic field…

A: Solution: The correct answer is option is (d) gives the direction of the force on a charge moving in…

Q: E The time period of a geo-stationary satellite is 24 h, at a height 6R (RE is the radius of earth)…

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Q: 2. What is the smallest number of whole logs (density = 765 kg/m³, radius = 0.084 m, length = 3.27…

A: Given          mass of people =mp=80kg        ρwood=765kg/m3       R=0.084m       L=3.27m

Q: A woman is standing in the ocean, and she notices that after a wave crest passes by, five more…

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Q: (a) A well-insulated electric water heater warms 121 kg of water from 20.0°C to 45.0°C in 23.0 min.…

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Q: 5. A piece of metal weighing 59.047 g was heated to 100.0 °C and then put it into 100.0 mL of water…

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Q: Consider an object on a rotating disk a distance ? from its center, held in place on the disk by…

A: EXPLANATION  a) true , since we know( v=ωr) where ,v= tangential speed which                 depened…

Q: A uniformly charged ball (a plasma ball) has a radius of 0.200 m. The electric field on its surface…

A: Er1=40 N/C                              r1=0.2 mEr2=20 N/C                              r2=?

Q: A block of mass m slides along a frictionless, horizontal table at a speed of u and hits a spring,…

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Q: The figure below shows an electron passing between two charged metal plates that create an 100 N/C…

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Q: Calculate the electric flux traversing a rectangle with a surface area of 65 m², a uniform electric…

A: Given data: Surface area of the rectangle is A=65 m2 The magnitude of electric field is E=212 N/C…

Q: 3. The batteries shown in the circuit below have negligibly small internal resistances. Find the…

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Q: 3. A spring is attached to the bottom of an empty swimming pool, with the axis of the spring…

A: Given: mass of block of wood=8.6 kg density of block=770 kg/m3

Q: A charged particle, passing through a certain region of space, has a velocity whose magnitude and…

A: A charge particle is passing through a certain reason of space has a velocity whose magnitude and…

Q: You are trying to photograph a bird sitting on a tree branch, but a tall hedge is blocking your…

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Q: The figure shows wire 1 in cross section; the wire is long and straight, carries a current of 4.29…

A: Given Data: Current in wire 1 (I1) = 4.29 mA = 4.29*10-3 A.Current in wire 2 (I2) = 6.90 mA =…

Q: Same type of track as in the previous problem, this time with d = 3.30 m. The block starts at x = 0,…

A: Apply the energy conservation equation and substitute the corresponding values to calculate the…

Q: OK, same sort of track, but now with d = 2.80 m. Now suppose the blocks starts on the track at x =…

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Q: With what speed will it hit the Earth's surface, neglecting friction with the atmosphere?

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Q: Still dont understand

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Q: v (m/s) 6 4 2 0 -2 6 m 30 m 18 m -6 m 4 0m 24 m 12 m -12 m 8 12 16 20 -4- -6- A car starts from x; =…

A: Solution: Given: xi = starting position of car = 12 m ti = starting time = 0 s tf = final time = 2 s…

Q: In the figure, four long straight wires are perpendicular to the page, and their cross sections form…

A: Given: Edge length a=29 cm=0.29 m We need the distance from center to the diagonal, hence,…

Q: Four electrons are orbiting a stationary proton along a perfect circle with a constant speed v as…

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Q: While driving along a country lane with a constant speed of 17 m/s, you encounter a dip in the road.…

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Q: (a) What is the speed of the electrons in the beam? (b) You must steer the electron beam with a…

A: You have posted a question with multiple sub-parts. But as per the guideline we are only be able to…

Q: A circular area with a radius of 6.50 cm lies in the zy-plane. For related problem-solving tips and…

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Q: An electron enters a region that contains a magnetic field directed into the page as shown. The…

A: Given dataAngle of the electron: θ=30°Magnetic field is into the page  The charge on an electron is:…

Q: 3. Two forces F₁ and F₂ push on an object with an angle of 70° between them. If |F₁|=170N and the…

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Q: Two resistors are connected in series to a battery with an emf of 12 V. The voltage across the first…

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Q: How do photons compare to electrons? What's different? Photons massless? Are they charged? Can they…

A: Photons and electrons are two fundamental particles in the universe, but they different several ways…

Q: inductor. Find (a) the resistance R and (b) the capacitive reactance Xc or the inductive reactance

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Q: 4 + R +++ charged conductor E or V for r≤k and V > R Uniformly charged insulator E and V for VSR and…

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Q: [3] A copper wire carries a steady current of 125 A to an electroplating tank. Find the magnetic…

A: Given: Current i =125 A Length of current element dl = 0.5 cm Distance r= 1.5 m Angle = 60 degrees…

Q: A charged particle of 4.6 µC (micro-Coulomb) is placed on the x-axis. At which position (s) along…

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Q: You normally drive on the freeway between San Diego and Los Angeles at an average speed of 105 km/h,…

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Q: A proton (mass m = 1.67 x 10-27 kg) is being accelerated along a straight line at 2.80 x 10¹2 m/s²…

A: Given, The mass of the proton, m=1.67×10-27 kg Acceleration, a=2.80×1012 m/s2 The initial velocity…