A silver wire and a gold wire of the same length have the same potential difference applied to them. If the currents are the same, what is the ratio of the diameters of the wires?

Q: At t = 0, one toy car is set rolling on a straight track with initial position 15.0 cm, initial velo...

A: according to kinematical motion there are three equations of motion - v = u + a*t s = u*t +1/2*at2 ...

Q: A certain strain of bacteria will divide itself from 1 to 2 every to [minute]. As a result, its popu...

A: Given: Population model The table is  Initial population No = 100   Asked: to find to in minutes

Q: Circular Motion: Please answer vertically. Thank You. A penny is put on a turntable 0.4 meters from...

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Q: The 67.5-kg block A is released from rest. Determine the velocity in m/s of the 28.1-kg block B in 6...

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Q: A sound has an intensity of 150 W/m2 at a distance of 8.50 m from the source. What is the power of t...

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Q: The body in the figure is pivoted at O, and two forces act on it as shown. If r = 2.03 m, r2 = 3.93 ...

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Q: What is the work done by the normal force if a 10 kg mass moves 10 m up an inclined plane with incli...

A: Work done is defined as the Scalar product of force and displacement. W = F•d

Q: Find the total Laplace impedance of the circuit below. Express your answers in integers. 3 s 2 Fill ...

A: According to question we need to find total Laplace impedance of circuit. 

Q: a) Show that material object can not travel as fast as light. b) Derive an expression for relativist...

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Q: What is the answer below if the radius of the neutron star is 29.894 km? (express your answer in the...

A: The mass of the Sun is 1.989×1030 kg. Hence, the mass of the star is M=1.989×1030 kg.

Q: R = (T,sin45 – T3sin30)î + (T,cos45 + T3 cos 30 + 525)f 750f = (T,sin45 – T3sin30)î + (T,cos45 + T3 ...

A: We have given here  R = T1sin45-T3sin30i^+T1cos45+T3cos30+525j^ ---- eq 1  and  750j^ = T1sin45-T3si...

Q: 2. Find (a) the horizontal components and (b) the vertical components of the resultant electric forc...

A: Given,q = 1.13 μCa = 15.2 cm

Q: rigure r3.11 Problems 11 and 22. Three displacements are A 200 m due south, B = 250 m due west, and ...

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Q: 3. A winch has a moment of inertia of 10.0 kg-m?. Two masses m, = 5kgs and m, = 2kgs are attached to...

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Q: What types of observations are necessary to determine the motion of a star through space?

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Q: Which of the following best describes voltage? a. Amount of charge stored by a battery b. Amount of ...

A: The best way to describe voltage is the difference in potential energy per unit charge when measured...

Q: An equation predict the relation between x and y as y = kx + b Find the value b of the best fitted l...

A: Given data for x and y

Q: A ball sits at rest on a horizontal table top. The upward force that table top exerts on the ball (n...

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Q: Water flowing through a pipe suddenly comes to a section of pipe where the pipe diameter decreases t...

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Q: A ball is thrown horizontally from the top of a building 22m high.the ball strikes the ground at a p...

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Q: 4. Two point charges are located on the -axis as follows: charge q1 = -1.50 nC at y = -0.600 m, and ...

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Q: A 95 kg paratrooper is falling at terminal velocity, a) Draw a free-body diagram of the paratrooper ...

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Q: Light is incident at an angle of 52 degrees on the surface of a diamond. The index of refraction of ...

A: Given data :- angle of incidence i = 52° refractive index n = 2.42

Q: Given the circuit below, with R=2 ohms and C-0.2 Farads, compute for the transfer function Vo(s)/Vin...

A: According to question we need to find transfer function V0 / Vin .  

Q: A prism with square base each side with length x, height h.The measurements are: x = 25.3 +/- 0.5 cm...

A: Given value--- length  = 25.3 +/- 0.5 . height = 35 +/- 0.3 . We have to find--- dv in cm³ ?

Q: What is the importance of recording the room temperature and atmospheric pressure prior to the exper...

A: Temperature- temperature is an an important fundamental parameter which shows that whether a thermod...

Q: What is the tangential speed of the tip of the pinwheel? (Round your answer to the nearest tenth

A: We know tangential velocity, V= r *w But w=(2π/T)  V=(2π/T)*r.          Eq.1  Here given frequency, ...

Q: The 4.3-kN force F is applied at point A. (a) Compute the moment of F about point O, expressing it b...

A: GivenForce applied at A, F=4.3 kNxA=1.2 m, yA=1.8 ma=7, b=11

Q: The ball at A is kicked with a speed of (24 + 0.42) m/s at an angle 0 = (25 + 4.2)°. Determine the p...

A: In this problem we are required to find the distance where the projectile hits the ground.

Q: A crate hangs from a rope that is attached to a metal ring. The metal ring is suspended by a second ...

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Q: A student has drawn a free-body diagram for a box being pulled by a string down a rough incline. The...

A: We need to see the direction of each force acting on the body and according to this we need to write...

Q: 1 Draw FBDS for the following situations: Ensure that you are considering magnitude of the vector an...

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Q: Light strikes the surface of a prism, n = as shown in the figure. 1.74, 45° If the prism is surround...

A: Given : ni = 1.75  θi = 45 ‌‌‌o

Q: Practice Exercise 1.7 top side left side right side Find the flux through the top, left, and right s...

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Q: The pressure in a horizontal pipe is 2.02x105 Pa, and the speed of the water flowing in it is 0.40 m...

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Q: A light ray passes through substances 1, 2, and 3, as shown. The indices of refraction for these thr...

A: Given :A light ray passes through 1,2 and 3 medium.  θ1$θ2 are angle of incidence and final refracti...

Q: How much work in kJ is necessary to compress air in an insulated cylinder from 0.215 m to 0.035 m? U...

A: To solve this we generally make a few necessary assumptions. They are: The gas is ideal gas It is a...

Q: What is the acceleration of a projectile: a. At the highest point? b. While the projec...

A: We assume that there is no air resistance during the projectile motion. The only force acting on the...

Q: A satellite is in motion around Earth with a period of 1.01 hour. A satellite just like it is put in...

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Q: ates horizontal current-carrying wire that is perpendicular to the plane of the paper is placed in a...

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Q: Four charges were arranged in space such that they form a rectangular configuration. The magnitude o...

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Q: A long cylindrical pipe of radius R is made of two thin, conducting “half pipes”, separated by a thi...

A: Draw the schematic diagram as below. As we know, Radius of disc is R. Let us consider a ring of rad...

Q: What is the magnitude of the force on an electron if the electric field is 200 N/C?

A: Given E = 200 N/C  

Q: What is the efficiency of a heat engine that uses an input heat of 6.70 x 104 J and rejects 3.28 x 1...

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Q: A 16384-point discrete fourier transform is used to evaluate the power spectral density of a signal ...

A: The frequency resolution is defined as Fs/N in FFT, Where Fs is sample frequency, N is number of dat...

Q: A ball is thrown from a tower 30 m high above the ground with a velocity of 300 m/s directed at 20° ...

A: We use the equation for height travelled by a projectile to solve this. It is h = ho+uyt - 12gt2, wh...

Q: A 45.0 kg mass oscillates on the end of a spring. Its oscillation has a frequency of 12.0 Hz and a m...

A: Given value--- mass = 45 kg. frequency = 12 Hz. maximum Amplitude = 0.75 m. We have to find--- sp...

Q: 2. The plot below shows the voltage (solid line) and current (dashed line) in a device that is conne...

A: Given,  Vmax = 30 mV ,         Imax = 90 mA a) from graph,     T = 0.020 s     n = 1/T = 50     ω = ...

Q: As shown in Fig. 11-4, a long, light piece of spring steel is clamped at its lower end and a 2.0-kg ...

A: Given force F=8N Displacement x=0. 2m Mass m=2.0kg We have to find the force constant of spring and...

Q: After being accelerated to a speed of 1.89x105 m/s, the particle enters a uniform magnetic field of ...

A: Given: Speed of particle = 1.89 ×105 m/s Magnetic field strength = 1.00 TRadius of circle = 34.0 cm ...