4. A positive /ith a mass OI 2.00 kg is released from rest at a height OI 20.0 m directly above another identical charge 2 at rest (permanently) on an insulated horizontal surface at ground level. Find the maximum speed of falling charge 1 if it can only move vertically. Assume the two charges do not make contact. Charge 1 20.0 m Charge 2

Q: 12.2 Hydrogen flows as a perfect gas without friction in the pipe shown in the figure. Determine the…

A:

Q: 49. In a mixture of argon (atomic mass 5 39.9 u) and neon (atomic mass5 20.2 u), the speed of sound…

A: Given, The atomic mass of Argon,  ma=39.9 u=39.9 u×1.6605×10-27 kg1 u=66.254×10-27 kg Also, for Neon…

Q: A 50.0 g iron rod is heated to an unknown initial temperature. While cooling down to a temperature…

A: According to equation of specific heat -  Q=mc∆T Where,  Q= Heat gain and loss  m = Mass  c =…

Q: A sound wave has a frequency of 669 Hz in air and a wavelength of 0.52 m. What is the temperature of…

A:

Q: 4 A block with a mass of m = 7.4kg block starts at rest 1.2m above the ground, at the top of a…

A: Given Information:- Mass of the block is m=7.4 kg Initial speed of the block is vi=0 Initial height…

Q: Its wintertime and you are in need of portable electrical heater for your room and you are comparing…

A: A)What is the resistance of the aluminum and iron heater at 28 degrees Celsius? B)What is the…

Q: The density of gray and white tin are 5.77 x 10³ kg/m³ and 7.37 × 10³ kg/m³. The latent heat for the…

A: We are given densities of gray and white tin. We are also given latent heat of transition. We are…

Q: You are looking at two bars made of solid gold. The first one has a temperature of 20 °C, while the…

A: As per the statistical physics, average kinetic energy is associated with temperature, its…

Q: On a warm summer day (29 ∘C∘C), it takes 4.70 ss for an echo to return from a cliff across a lake.…

A: Data Given, On a warm summer day , Temperature ( T ) = 29°C Time takes for an echo to return in…

Q: 4. A rod of an unknown material grows in length by 0.30% when its temperature is raised by 140 C, at…

A: Given:percentage increase in length, dLL×100 = 0.30%when temperature is raised by, dT = 140 oCwhen…

Q: The figure shows the cross section of a wall made of three layers. The thicknesses of the layers are…

A: Given The temperature of the wall,                  TH =22°C, TC = -15°C The thickness of the wall,…

Q: width of 9.0m and a length of 12.0m. The depth of the water is 1.83m. One morning the temperature…

A: GivenWidth of pool, b=9 mLength of pool, L=12 mDepth of pool, h=1.83 mT1=15°C=15+273=288 KHeat…

Q: A copper rod and an aluminum rod have lengths of 99.75 cm and 99.50 cm respectively at 20oC.  At…

A: Let's assume that at temperature T∘C, the length of both the rods be the same. The formula to…

Q: The final temperature of the mixture is:

A:

Q: 10. A hockey puck moving at 7 m/s coasts to a halt in 75 m on a smooth ice surface. What is…

A: Given:u = 7 m/s   (Initial velocity)v = 0 m/s   (Final velocity)d = 75 m  (distance traveled)…

Q: At what temperature is the average speed of carbon dioxide molecules ( M = 44.0 g/mol) 510 m/s?

A:

Q: The temperature of water in a swimming pool decreases by 5.0 K during the night. The mass of the…

A: Given, The temperature of water decreases by 5 k mass of water in the pool is 560,000 kg specific…

Q: An iron rod is heated from 32.00 oC to 182.0 oC. The initial length of the rod is 2235 cm. What is…

A:

Q: What is the surface temperature of a star that has a radius of 7.00 x 108 m and emits power at a…

A:

Q: How much thermal energy (in J) is required to boil 2.25 kg of water at 100.0°C into steam at…

A:

Q: 1. A 50.0 g sample of lead starts at 22°C and is heated until it absorbs 8.7 × 10 J of energy. Find…

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Q: Assume the overall world energy consumption is 650 EJ. Now assume that you transfer all this energy…

A:

Q: A steel bar and a copper bar have the same length of 1.400 m at -10.00 ∘C. What is the difference…

A: Initial length of the bars is L = 1.4m Initial temperature of bars Ti = -10°C, Final temperature of…

Q: A solid ball of mass 1.0kg and radius 10cm rolls with a forward speed of 20m/s when it comes to a…

A: Mass , m=1.0 kg Radius, r=10 cmForward speed v=20 m/s For solid sphere  Let at reference level hi=0…

Electric Charges and Fields

One of the fundamental properties is the electromagnetic property. Charge cannot be destroyed by any process and this contributes formally to the law of charge conservation.