Two long parallel wires separated by 3.91 cm experience a force per unit length of 2.99 N/m. They are carrying the same current. What is it? Select answer from the options below' a. 541 A b. 383 A c. 765 A d. 1530 A

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

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Q: A child on a swing has a speed of 1.8 m/s at the low point of the arc (see the figure below).   How…

A: Speed at low point is v = 1.8 m/s

Q: A gas has a well-defined mean energy E when its volume is V and mean pressure is p. If the volume of…

A: Given:relation between pressure and volume is P =kV−5/3here Va = 8×103 cm3 = 8×10−3 m3Vb = 1×10−3…

Q: Write down an expression for the width of the central bright line on a screen in the single slit…

A: We want to write an expression for the width of the central bright line on a screen in the single…

Q: In optics, what is meant by each of the following terms? (i) Refraction (ii) Index of refraction of…

A: In optics, the phenomenon of Dispersion is a result of Refraction due to difference in Index of…

Q: 1. You pluck on a guitar string. The standing wave created has these boundary conditions: A. Both…

A: The boundary conditions of a standing wave on a guitar string depend on how the string is fixed at…

Q: A block of mass 1.63 kg is placed on a frictionless floor and initially pushed northward, whereupon…

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Q: The diagram below on the left is a free body diagram representing the forearm and hand holding a…

A: F1=200Nr1=0.35mF2=50Nr2=0.12

Q: Boyles law inversely V =100cm P=30 Find the p when V is 75

A: P1 = 30 (unit) V1 =100 cm3 V2 = 75 cm3

Q: How many electrons pass a position in a circuit every second if the current in this circuit is 15 A…

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Q: Calculate the length of a wire currying current of 8.3 A and experiencing the force of 5 N in the…

A: Current in wire ,I = 8.3AForce on wire ,F= 5NMagnetic field ,B= 3TAngle of wire with field ,θ=30ο

Q: Three charged particles are placed at the corners of an equilateral triangle (one side = 1.20m) .…

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Q: 17. A crying child emits a sound with an intensity of 8.0 x 10-6 W/m². Find the intensity level in…

A: The intensity of the sound is 8x10-6 W/m2.

Q: The figure below shows an object (black arrow) in front of a convex mirror. How would the image…

A: From the given figure, it is noted that by the characteristics of convex lens the image will be…

Q: What is the critical angle for the interface between water and diamond? The index of refraction of…

A: nwater = 1.33, ndiamond = 2.42.  Because diamond has a higher index of refraction, the light ray…

Q: A bullet was fired from a gun directly upward. It reached a maximum height of 2 km. What is its…

A: The height bullet can be found by using the kinematic equation: v2=u2+2as Where v is the final…

Q: Write down an expression for the width of the central bright line on a screen in the single slit…

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Q: Calculate the value of an electric field at a point 5 m away from two positive electric charges of…

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Q: 5. A person who weighs 720 N in air is lowered into a tank of water, and records ar apparent weight…

A: The weight of the person in the air is 720 N. The apperant weight of the person is 34.3 N in the…

Q: Based on the equations for these two waves, please identify the following properties of these waves.…

A: Wave equation-  y1=sin(πx - 2πt)  y2=sin(πx/2 + 2πt)

Q: Describe your approach to the calculation of the escape velocity of a satellite from a planet. a.…

A: To find : the escape velocity of satellite from a planet Let the mass of planet = M let the radius…

Q: 1. Where around a convex lens should you place an object so that the image of the object forms at…

A: When an object is placed at the focal point of a convex lens, the light rays from the object become…

Q: A cube of edge length = 3.20 cm is positioned as shown in the figure below. A uniform magnetic field…

A: Edge length l=3.20cm=3.20×10-2m Magnetic field B→=(6.1i^+4.0j^+3.0k^)

Q: Two open organ pipes, sounding together, produce a beat frequency of 8.0 Hz. The shorter one is 2.50…

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Q: 1. Stick Guy wired his stationary bicycle to an AC generator with a 250-turn coil, and a large…

A: See below

Q: 10. A uniform electric field is established by connecting the plates of a parallel plate capacitor…

A: the expression for the electric field. E=Vd Given, potential difference(V)= 12Vseparation between…

Q: Describe your approach to calculating the value of an electric field a certain distance away from…

A: To calculate the value of the electric field at a certain distance away from two electric charges,…

Q: A solar flare occurs in the surface of the sun on Monday morning at 11:45 AM. The sun is 1.496 x 108…

A: Distance between Sun and Earth =  1.496 × 108 km = 1.496 × 1011 mSpeed of light = 3× 108 m/s

Q: Figure 1 shows two sets of equi-potential surfaces due to charge 9₁ and charge 92. An external agent…

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Q: A canon is located on the edge of a cliff overlooking the sea as shown below. The cannon is 45 m…

A: See below

Q: 4. The figure shows an elastic collision of two objects on a frictionless table. Object A has a mass…

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Q: i) State Ohm’s law in words and symbols. (ii) Name and define the S.I. unit of resistance

A: If all physical conditions and temperatures remain constant, the potential difference across a…

Q: Find phase velocites of 2 waves moving with velocities v₁= 7m/s and v₂= 6m/s, having wavelengths ₁ =…

A: v1 = 7 m/s  v2 = 6 m/s  λ1 = 15 nm  λ2 = 22 nm

Q: Two pendulums consist of bobs of masses 2 kg and 20 kg suspended on wires of 10 m length. Both…

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Q: 3. A flat piece of glass covers the top of a vertical cylinder that is completely filled with water.…

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Q: An object moves along the y axis according to the equation y = 1.25t3 - 5.00t + 2.50, where y is in…

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Q: A ray of light is incident of a concave mirror as shown below. The dot labeled "C" represents the…

A: Incident ray after relecting from mirror makes same angle with center of curvature. i.e. Angle…

Q: A particle is traveling in a straight line. Its position at time t in seconds is given by s(t) = 8√t…

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Q: (7) Calculate the angle incidence A light ray passing from medium acetone into air is shown to have…

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Q: Cobalt-60 has many medical applications. If the half-life of cobalt-60 is 5.25 years, how long after…

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Q: A paperweight, when weighed in air ,has a weight of W=11.8N. When completely immersed in water ,…

A: The weight of the paperweight in the air is 11.8 N. The weight of the paperweight in the water is…

Q: Bob is moving away from Alice with speed of 0.5c. Carlos is moving away from Alice and perpendicular…

A: Speed of Bob with respect to Alice: vbob = 0.5c Speed of Carlos with respect to Alice: vcarlos =…

Q: 7. Water travels through a 9.6 cm diameter fire hose with a speed of 1.3 m/s. At the end of the…

A: Given: The diameter of the fire hose through which the water travel: d1 = 9.6 cm (0.096 m). The…

Q: 5) To water the yard, you use a hose with a diameter of 3.4 cm. Water flows from the hose with a…

A: 5. We need to use here the principle of continuity, which states that the mass flow rate of a fluid…

Q: hockey puck that has a mass of 170 g travels with a speed of 30 m/s. What is the momentum…

A: Mass of object is m=170 g Velocity of object is v=30 m/s Note: 1 kg=1000 g Find: Momentum of object.

Q: 12) Calculate the work done by a 3V battery as it charges a 7.8 uF capacitor in the flash unit of a…

A: Dear student,  You've mentioned to solve question number 6, as per numbering question number 12 is…

Q: A simple pendulum is constructed from a short metal rod of the mass mand of the length / suspended…

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Q: The work done by an electric force in moving a charge from point A to point B is 2.05 x 103 J. The…

A: Work done W = 2.05 × 10-3J Potential difference VA- VB = 40.9 V