What must be the distance between point charge q1=26.0 μC (1μC=1x10-6 C) and point charge q2 =- 47.0 μC for the electrostatic force between them to have a magnitude of 5.70 N? k=9 x 10^9 Nm2/C2

Q: An object is dropped from rest at a height of 300 m. Find the velocity after 2 seconds. Find the t...

A: Here, it is given that an object is dropped from rest at a height of 300m. We have to answer the thr...

Q: An object starts at rest.  It accelerates in the +x direction at 6.6m/s^2 for 5.2 sec.  How far does...

A: Given: Initial velocity (u) = 0 ......(object is at rest) Acceleration (a) = 6.6 m/s2 Time (t) = 5.2...

Q: A super-insulated house is at a temperature of 20°C. The temperature outside is 0°C. The surface are...

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Q: A moving hydrogen atom (rest mass = 939 MeV/c², where c is the speed of light in vacuum) has a kinet...

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Q: #2: A small sphere of charge -2.0 x 10^-4 C sits on the roof of a 5.0-kg cart as shown. The sphere m...

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Q: When the driver applies the brakes of a light truck traveling 10 km/h, it skids 3 m before stopping....

A: GIVEN THAT FOR FIRST CASE , u =10Km/h⇒U=10×518=5018=2.78m/s , AND S=3 m FOR THE SECOND CASE u= 80Km...

Q: A car is traveling at a speed of 42.6 m/s on an interstate highway where the speed limit is 75.0 mi/...

A: in one hour or 3600 seconds, it travels 42.6×3600=153360m . Now each mile has 1609.34 meters. Driver...

Q: A sound wave at a frequency of 360 Hz produces 32 beats in 4 seconds when interacting with a vibrati...

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Q: A 2 kg frame is hung in a ceiling as shown. Find the tensions T, and T2 in the rope. ///// 40° T2 30...

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Q: A car has an acceleration of 8 m/s?. a) How much time is needed for it to reach a velocity of 24 m/s...

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Q: A 2 kg frame is hung in a ceiling as shown. Find the tensions T1 and T2 in the rope. 30° T1 40° T2 2...

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Q: friction betwll Praw FBD) 3, The coefficient of stardie fhcdion betueen a Ho. o Kg picnc table and t...

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Q: Part A A subway train starts from rest at a station and accelerates at a rate of 1.60 m/s? for 14.0 ...

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Q: Problem 6: Consider a ball of mass m attached to a string of length L, which is being spun around in...

A: Given that:- Mass of the ball=m kg  Length of the string=L meter  

Q: A small asteroid strikes the surface of Mars and causes a rock to fly upward with a velocity of 26 m...

A: We  have given initial speed =26m/s Angle  of projection =52°  Displacement in vertical y=12m We hav...

Q: Two car horns have an average frequency of 420 Hz and a beat frequency of 40 Hz. What are frequencie...

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Q: A total charge of 6.0 mC passes through a cross-sectional area of a wire in 2.0 s. What is the curre...

A: Given data : Time=t Charge=Q   Required : Current in wire

Q: Lorena has a fire in her fireplace to warm her 20°C apartment. She realizes that she has accidentall...

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Q: The coefficient of friction between a 33kg exercise mat and the gym floor are us = 0.41 and uk = 0.3...

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Q: The 2-Mg car is being towed by a winch. If the winch exerts a force of T= (100s) N on the cable, whe...

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Q: In the Daytona 500 auto race, a Ford Thunderbird and a Mercedes Benz are moving side by side down a ...

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Q: 20016 30 150 1b

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Q: 32. (II) A spring with k = 53 N/m hangs vertically next to a ruler. The end of the spring is next to...

A: Given, Unstretched length of the spring = 15 cm  Spring constant k = 53 N/m  Mass = 2.5 kg  

Q: A car accelerates from rest at 7.55 m/s2 for 4.25 s. Determine the final velocity of the car.

A: Given: Car start from rest, so initial velocity u=0 Acceleration, a=7.55 m/s2 Time, t=4.25 s   To de...

Q: Two horizontal parallel plates are separated by a distance of 174 mm creating an electric field of 2...

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Q: Explain in short description 1. Resistivity, 2. Conductivity, and 3. Electrical Conductivity.

A: Electrical conductivity and conductivity are the same thing; they both describe a material's ability...

Q: Explain how electric fields are like gravitation fields and how they differ.

A: Explanation: electric fields are like gravitation fields because 1. They both forces acts on interac...

Q: What is the area of the filter paper with length of 12mm and width of 1.0cm?

A: Given that:- Length of the filter paper=12mm Width of the filter paper=1cm

Q: The equivalent resistance for the circuit shown below drops to one-half its original value when the ...

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Q: An airplane flies 200 km due west from city A to city B and then 275 km in the direction of 36.0° no...

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Q: What is the total current of the circuit? * 11.265 What is the current in the 20-ahm resistor? * 4.0...

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Q: A small sphere of charge -2.0 x 10^-4 C sits on the roof of a 5.0-kg cart as shown. The sphere moves...

A: Given: q1=-2.0*10-4 CM=5 kgq2=1.5*10-3 Cm=10 kgd=5.0 mx=2.0 m  

Q: Which of the following is NOT a unit for density? a. lb/ft b. g/mL c. kg/m² d. g/cm'

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Q: 4. Which of the following properties of a cross product is FALSE? C, D, and E are vectors. I. C x D ...

A: 1. The Cross product of three vectors is    A×B =ab sinθ nhere,n is the unit vectorA,B are vecotors....

Q: A bridge is made with segments of concrete 50 m long. If the linear ekpansion coefficient is 12 x 10...

A: Answer:-  Given  Coefficient of linear expansion (alpha) = 12 × 10-6(oc)-1 = 0.0000012  Original len...

Q: A river is 85 meters wide, and has a current speed of 5.0 m/s. A swimmer is capable of swimming at 8...

A: Given that:- Width of the river=d=85m

Q: A model rocket is launched straight upward with an initial speed of 53.0 m/s. It accelerates with a ...

A: a) Apply the third kinematic equation and substitute the required values to calculate the speed when...

Q: Carry out the following arithmetic operations. (Enter your answers to the correct number of signific...

A: We have to find the sum, product (a)  578 is answer (b) 2.4 (c) 56.206  

Q: A certain aircraft has a liftoff speed of 124 km/h. (a) What minimum constant acceleration does the ...

A: GivenLiftoff (Final) speed of aircraftv=124 km/hDistance travelled by aircraft(s)=242 m

Q: A new temperature scale is being developed in a certain laboratory. On this new scale the freezing p...

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Q: Compute for the acceleration due to gravity for each height, percentage error obtained for each meas...

A: Write the free fall formula for height as below. h=12gt2 Here, h is height, g is the acceleration du...

Q: 3. A fine (thin) ring with a radius 50 mm is being pulled from the surface of water. If the ring has...

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Q: A 5.0-kg object is pulled along a horizontal surface at a constant speed by a 12-N force acting 300 ...

A: Given data:  Force (F) = 12 N Angle (θ) = 30° above the horizontal  Distance (s) = 8.0 m Required: W...

Q: The best leaper in the animal kingdom is the puma, which can jump to a height of 12.7 ft when leavin...

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Q: Given data Force=2 N Displacement=1 m Work done

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Q: A metal is heated up to a temperature of 500 degrees. It is then exposed to a temperature of 38 degr...

A: According to Newton's law of cooling:- T=T0+(Ti-T0)e-kt where, T=Temp. at any time 't'.T0=Surroundin...

Q: Q²; A person tossed a ball vertically upward with an initial movement rate of 15.0 m/s then it rose ...

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Q: 17. Which of the following represents a standard scientific notation? 12000. 123.0x103 1.230x103 0.2...

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Q: 1. On some major highways lines are painted at regular intervals, and drivers are instructed to leav...

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Q: A small mailbag is released from a helicopter that is descending steadily at 1.67 m/s. (a) After 4.0...

A: there are three equatio  of motion  v = u + at  v2 - u2 = 2as  s = ut + 0.5 gt2  here u = initial ve...

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.