A 4 m 3 m D

Q: Four charges equal to -Q are placed at the four corners of a square and a charge q is at its centre.…

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Q: If the momentum of a flying brick is 40 kg x m/s and it's mass is 8 kg. Calculate its velocity ?

A: Given data :                            Mass     =     m                     Momentum   =    P…

Q: Electric Field Lines- Electric Field Lines- Positive Charge Negative Charge

A: Electric field lines are away from positive charge and towards the negative charge

Q: What can be the maximum angle

A: Given; Co-efficient of static friction between a blockof mass m and incline is μs=0.3.What can be…

Q: If a single lens forms a virtual image of an object, then Group of answer choices The image must be…

A: Correct option (b). The lens could be either a diverging or a converging lens.

Q: Question 2 Ignoring air resistance, if a 10 kg ball and a 100 kg box were both dropped from the top…

A: Acceleration of any body is independent from the mass of object and it's value on each surface is…

Q: What is biosphere

A: Introdution: The biosphere, also known as the ecosphere, is the worldwide sum of all ecosystems. It…

Q: The wavelength of the yellow spectral emission line of sodium is 590 nm. At what kinetic energy…

A: Given: Wavelength, λ=590 nm   To determine kinetic energy that an electron would such that…

Q: A ball rolls horizontally with a speed 0f 7.6 m/s off the edge of a tall platform. If the ball lands…

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Q: Problem 10: A contestant in a winter sporting event pulls a 42 kg block of ice in the positive…

A: mass of block of ice = 42 kg coefficient of static friction = 0.1coeffcient of kinetic friction =…

Q: how is the concept of projectile motion used in real life?

A: how is the concept of projectile motion used in real life?

Q: Two particles of masses 9kg and 18 kg are placed on a smooth horizontal table. A string, which joins…

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Q: beam of electrons is accelerated across a potential of 14.40 kV before passing through two slits.…

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Q: A 400-W computer (computer plus monitor) is turned on 8.0 hours per day. If electricity costs ₱ 9.0…

A: Given Data: Power used by computer per hour = P = 400 W = 0.4 kW Time t = 8 hours /day Cost per kWh…

Q: A 250-Ω resistor is connected across an ac voltage source V = (150 V) sin [2π(60 Hz)t]. What is the…

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Q: 8- A rope under tension (20 lb) and the density of the longitudinal rope is (0.003 lb/ft), the…

A: Given, A rope is under tension, m = 20 lb density of the rope, μ = 0.003 lbft

Q: What will be the momentum of a stone having mass of 14 kg when it is thrown with a velocity of 4 m/s…

A: Given data :                      Mass     =     m                  Velocity     =     V         To…

Q: en 2 atoms. How much amper(A) is needed to obtain 5.8x10-19 joules of electro volts(eV)? HW-8: Find…

A: Given:-  The resistance is R = 0.8 ohm between the two atoms.  The  Energy needed to obtain is…

Q: Which of the following is the refracted ray?       A     B     C     D     E     none…

A: When  incident light ray passes from one medium to another light get refracted  from it initial…

Q: Two waves traveling in opposite directions result in a standing wave. If the function of each wave…

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Q: A small block is attached to an ideal spring and is moving in SHM on a horizontal, frictionless…

A: When the block is at a distance x=0.310 m, the acceleration of the block is a=-5.23 m/s2

Q: Calculate the index of refraction of the unknown material. What is the speed of light within the…

A: Given data as per question θi=300θr= 420

Q: 5. Two forces acting on an object, F1=30 N, F2=40 N. The angle between is 90°. To make the object…

A: We have two forces acting on an object of magnitudes F1=30 N and F2=40 N and the angle separating…

Q: 1. Vector A→, having magnitude 2.5m, pointing 37. south of east. 2. Vector B> having magnitude 3.5m,…

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Q: Kindly refer to the diagram below. What is the resultant electric force on charge B due to charges A…

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Q: A speck of dirt is embedded in a spherical block of ice (n = 1.309) with a radius of 7.00 cm. If the…

A: Given data: The refractive index of ice is ni=1.309. The radius of sphere is R=7 cm. The apparent…

Q: In the pattern stabilization technique for obtaining a giant laser pulse, it was proved that the…

A: Any laser that is not a continuous wave laser and in which the optical power appears in pulses of…

Q: A pipe carrying water from a tank 20.0 m tall must cross 3.00 x 10^2 km of badland to reach a remote…

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Q: Which of the given below shows the highest efficiency? O efficiency of 55% O 100 joules of thermal…

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Q: A 15 m copper wire has a cross sectional radius of 3mm. (P = 1.68×10^-8 at 20°C and A=0.0068) a.…

A: Given: The length of the wire is 15 m. The radius of the wire is 3 mm. The resistivity of the copper…

Q: Two point charges +8q and -2g are located at x = 0 and x = L respectively. The location of a point…

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Q: Problem 3: An adventurous archaeologist crosses between two rock cliffs by slowly going hand over…

A: Maximum tension, Tm = 2.50×10⁴ N = 25,000 N  Mass, m = 90 kg Angle, θ = 10°

Q: An object is placed 27 cm in front of a diverging lens having a focal length of magnitude 50 cm.…

A: U=-27 cm. f=-50 cm. Using lens formula 1/f=1/v -1/u. Then 1/v =1/u+1/f 1/v=1/-27 +1/-50…

Q: Ultrasonic sound waves are often used in methods of nondestructive testing. For example, this method…

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Q: A father pulls his child on a sled by pulling on a rope over his shoulder with a force as much as 75…

A: Free body diagram gives whole idea of the forces acting. Force brings about motion and changes in…

Q: f the magnitude of each of the two charges is doubled, then the electrical force between them…

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Q: If the mass of the spaceship (including the astronauts) is m = 10^4 kg, %3D what would be its rest…

A: Given: Rest mass, m0=104 kg Require: Rest mass energy, E=?

Q: If you have a mass of 100 kg on the earth and are taken to a planet where the acceleration of…

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Q: Problem: An electric charge Q is distributed uniformly along a thick and enormously long conducting…

A: We have to apply Gauss law here

Q: The wavelength of the yellow spectral emission line of sodium is 590 nm. At what kinetic energy…

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Q: Ultrasonic sound waves are often used in methods of nondestructive testing. For example, this method…

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Q: In a thermodynamic process, if 135 kJ amount of heat is required to increase 5.1 kg of metal from…

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Q: Find the Miller indices of the planes that intersect the crystallographic axes at the distances: (i)…

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Q: Objects A and B, which are initially neutral are rubbed against each other. As a result, A becomes…

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Q: If 850.0 J amount of heat is added to a system of ideal gas and the work done by the system is 460.0…

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Q: A body does 55 Joules of work in 6 seconds. What is it's power ?

A: Given value--- Work = 55 J. time = 6 second.  We have to find--- power ?

Q: Q2: A car is traveling at a speed of 55 km/h. Express this speed in S.I. units.

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Q: You have a string of identical piano strings of length (0.75m), each of which is tuned to 440HZ. The…

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Q: Consider a coaxial cable as shown in the figure. The cable consists of a solid inner conductor of…

A: Write the expression for the magnetic field. Here, μo represents the permeability of free space, I…

Q: Forces which act on the same point at the same time are called concurrent forces.

A: TRUE When they act simultaneously and at the same time and on the same point, they are called…