A searchlight 3/4 mile, from a straight shore, rotates at the rate of 2.5 rev/min. How fast is the spot of light from the searchlight moving along the shore when it is 3 mile from the point on the shore nearest the searchlight?

Q: 3.0 cm wire carrying a current of 10 A is place nside a solenoid perpendicular to its axis. Th…

A: Given:  Length  of a wire= 0.3 cm Magnetic  field= 0.27 T Here, we calculate the given as follow;

Q: 30 m M B 15 m A 500 kg roller coaster is at rest on a frictionless track 30 m above the ground…

A: Mass = m = 500 kg Height at point A = 30 m At point B , height = 0 m

Q: 18 Two forces, of magnitude p newtons and q newtons, have a resultant of 2√7 N when they act at 90°…

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Q: Find the potential difference across each resistor in the figure below. (R₁ = 4.90, R₂ = 3.60 , R3 =…

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Q: The wavelengths of visible light range from approximately 400400 to 750 nm750 nm. Part (a)  What is…

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Q: Learning Goal: To find some of the parameters characterizing an object moving in a circular orbit.…

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Q: (a) Assuming that each cubic centimeter of water has a mass of exactly 1 g, find the mass of 2.38…

A: Given data:  Density of water (ρ) = 1 g/cm3  Time (t) = 10.8 h Volume of water (V) = 99.0 m3…

Q: Replace the two forces acting on the frame by a wrench. Write both the force R and the moment M of…

A: The forces acting are shown in the following diagram It is clear from the diagram that a force F1…

Q: During which segment is the object moving backwards? Segment A Segment B Segment C Segment D

A: Given data:  The position vs time graph Required: The segment for which the object moving backwards

Q: Blocks 1 and 2, with masses m₁ and m2, are placed on a frictionless, horizontal table with an ideal…

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Q: You are holding a shopping basket at the grocery store with two 0.56-kg cartons of cereal at the…

A: Given data- Mass of cartoon of cereal mcereal =0.56 kg , for two cartoons =2mcereal Length of basket…

Q: Consider the following figure. 7.00 9.00 FÖR 4.00 a b (a) Find the equivalent resistance between…

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Q: A cardboard box is in the shape of a cube with each side of length L. If the top of the box is…

A: Given data, Length of the side of the cube=L Mass of the box=m

Q: he frequency of a photon having energy (Take h = 6.62 × 10-34 J s; 1 eV = 1.6 × 10-¹⁹ J) (a) 2417 x…

A: GIVEN: Energy = 100eV       h= 6.62* 10_34 J 1eV= 1.6* 10_19J Here, we calculate the given as…

Q: A lighter block (1.5 kg) and a heavier block (3 kg) sit on a frictionless surface. Both blocks are…

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Q: . Point charges 2μC and 3 μC are placed in a medium of dielectric onstant 80 at a distance 3 cm…

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Q: At an intersection of hospital hallways, a convex spherical mirror is mounted high on a wall to help…

A: Sign convention for distances and height in convex mirror: Distances along the principal axis is…

Q: To view an insect, an entomologist places a converging lens with a focal length of 10 cm a distance…

A: Given data The focal length of the converging lens is given as f = 10 cm. The object distance is…

Q: Four friends ride to school on the bus in the morning. Since they have a physics t that day, they…

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Q: A juggler performs a series of tricks with three bowling balls while standing on a bathroom scale.…

A: The average weight of the juggler and the balls will be equal to the weight of juggler plus the…

Q: 5. Our sun orbits around the center of our galaxy (the Milky Way) once every 2.5 x 108 years. The…

A: Given data: Orbital period for Sun T=2.5×108 yrs Radius for Sun orbit R=3.15×1020 m

Q: A 58- kg skier is coasting down a 25° slope, as Figure below shows. Near the top of the slope, her…

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Q: Four identical textbooks, each of length L, are stacked near the edge of a table, as shown in Figure…

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Q: An artificial satellite circling the Earth completes each orbit in 150 minutes. (a) Find the…

A: Given value--- time period of satellite = 150 min. We have to find--- (a) Find the altitude of…

Q: An observer at a fixed distance from a light bulb measures the light intensity at her location to be…

A: Given that: I=10 w/m2c=3×108 m/sε0=8.85×10-12  A2s4kg.m3 E0=?

Q: A coordinate system (in meters) is constructed on the surface of a pool table, and three objects are…

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Q: A uniform solid sphere having mass M = 85.0 g and a radius R = 0.70 m rolls on a horizontal surface…

A: mass (M) = 85 g R = 0.70 m speed at the bottom of the inclined surface (v) = 5.8 m/s θ = 60 degree…

Q: E) Zero Q3: A uniformly charged insulating rod of length 6 cm is bent into the shape of a semicircle…

A: Given data:  Length of rod = 6π cm Total charge (Q) = 6 nC Required: The electric potential at…

Q: Find the activity of a certain material after 4.4 weeks if it has a half life of approximately 240…

A: Given A0=5 μCi         (initial activity)T12=240 hrsformula…

Q: The angular speed of a wheel decreases uniformly from 34.0 rad/s to 2.0 rad/s in 18.0 s. A. Find the…

A: Given data:  Initial angular velocity (ω0) = 34.0 rad/s Final angular velocity (ω) = 2.0 rad/s Time…

Q: A metal ring of weight 120 N can slide up or down a vertical rod. The ring is attached by a cable to…

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Q: a) Mention the abreviation of the device if it has any.  b) Describe the main principle of this…

A: Given: Device laser To Find: (a) Abbreviation of device (b) Principle of this device  (c) how device…

Q: what are kirchoff's laws

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Q: A cord is used to vertically lower an initially stationary block of mass M = 13 kg at a constant…

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Q: An old problem from a new perspective … again…. A car starts from rest and accelerates to 40 m/s in…

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Q: What are the expected readings of the ammeter and voltmeter for the circuit in the figure below? (R…

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Q: Find the activity of a certain material after 4.3 weeks if it has a half life of approximately 174…

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Q: Homework Part 1: Questions about 9.34 Small blocks, each with mass m, are clamped at the ends and at…

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Q: The space bus is 2.0 km long in its own frame and moves towards planet earth at a speed of 0.6c. Jim…

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Q: 80. HMMM By means of a rope whose mass is negligible, two blocks are suspended over a pulley, as the…

A: Let T1 and T2 be tensions in the string on both sides. T1 being on 44 kg From FBD on each bodies;…

Q: A capacitor is made from two concentric spheres, one with radius 4.50 cm, the other with radius 7.60…

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Q: Position (m) 80 60 40 A 20 20 40 B 10 Position vs Time 20 30 Time (s) D 40 50 What is the velocity…

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Q: Could a wave motion be set up in which the parts of the medium vibrate with angular simple harmonic…

A: Absolutely. One simple way to do this is to get a length of surgical tubing—the stuff they use to…

Q: A 140 g mass is connected to a light spring of force constant 4.00 N/m and is free to oscillate on a…

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Q: Why does the flow of water from a faucet decrease when someone opens another valve in the same…

A: As per conservation of energy, when someone opens another tap, total water supplied to your building…

Q: A styrofoam cooler has a total surface area of 1.3 square meters and a thickness of 2.2 centimeters.…

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Q: A uniform disk of mass 3 kg and radius 12 cm rotates at 240 rad/min. the moment of inertia of a…

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Q: A block of mass m = 9kg with initial speed of v₂ = 12.3m/s travels a distance d = 10.8m on an…

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Q: In the figure, the slender bar AB, with a mass of m and length of L, is moved to the right from θ =…

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Q: F₂ Gm,m₂ 2 no change 3x less 9x more 3x more 9x less Two masses, m₁ and m₂ are separated by a…

A: Given,  If m1 increases by 3x in given relation. We need to find, The change in Fg.