Two point charges are separated by a distance r and repel each other with a force F. If their separation is reduced to 0.25 times the original value, what is the magnitude of the force of repulsion between them?

Q: 4. A 10 kg block on a level surface is pushed by a 50 N force directed 30 degrees below the horizont...

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Q: example 2.4. Resalve the 170 ib force into two components, one along AB and the other paralel to CD....

A: The angle of the force is given by θ=tan-1158=61.9° The components of the force   Fx=170 lbsin61.9°=...

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Q: A stone is dropped from top of a building that is 19.6 metres from the ground. Before the stone reac...

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Q: Question 2 A person pushes a shopping cart with a force of 15 N and the cart starts moving away from...

A: A man is applying a force of 15N on cart. Due to this force cart start moving.

Q: My question is attached.

A: Line spectrum angle,(θ)=30o -----(1) [Given] Wavelength,(λ)=668 nm -----(2) [Given] Number of comple...

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A: Given: Single slit,a= 1.0 mmWavelenght,λ=450 nmDiameter,D=7mFind  the width of the central maximumNo...

Q: 2. Two buses are driving along parall freeways that are 5 miles apart, one heading east and the othe...

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A: Acceleration is defined as the rate of change of velocity. It is a vector quantity that means it has...

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A: When a particle moves in a circular path, its velocity vector is always tangent to the path of the m...

Q: A bar 2.0 meters long makes an angle of 30 with the horizontal. A vertical force of 40 N is applied...

A: Given, length of the bar= 2.0 m angle = 30∘V Vertical force 40 N is applied 0.4 m from the upper end...

Q: Question is in the Attachment Please solve fastly without spamming by providing all steps

A: Let us consider two spheres having radii (R1) & (R2) respectively. R1R2=23 -----(1)   [Given] Al...

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Q: Predict the value od H in cartesian coordinates at P(0,0,2,0) in the field1) a current filament of 2...

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Q: 2. a) What is the impulse of the net force on the ball during its collision with the wall? The mass ...

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Q: A point in equilibrium is acted on by three forces. Force F1 has components 15 N due south and 13 N ...

A: The three forces are in equilibrium, which implies ∑iFi→=0, i.e., the vector sum of all the forces (...

Q: A He-Ne gas laser which produces monochromatic light of a known wavelength λ= 6.35 x 10^-7 m is used...

A: Given Data: The wavelength of monochromatic light, λ=6.35×10-7 m The first-order diffraction occurs ...

Q: Which state of matter has molecules that slide past each other but stay close together? They do not ...

A: Solid, Liquid and gas are the three most common state of matter. Solid: In solid state, the particle...

Q: In an RC series circuit, emf  = 12.0 V, resistance R = 1.21 MΩ, and capacitance C = 1.87 μF.Calculat...

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Q: A 600 N person climbs a ladder at a constant speed. The person climbs up 12 meters in a time of 20 s...

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Q: A small child runs up a hill in 20 seconds and does 4000 joules of work. What is the child’s power o...

A: Given data The time taken to run up a hill is t = 20 s The amount of work is W = 4000 J

Q: 2) a 1550-kg car moving at a constant speed of (900 km/hr) Its takes (16,000W)to keep it on alevel r...

A: M = 1550 kg  V = 900 km/hr  = (900)(1000/3600) => V = 250 m/s    

Q: ба. (А) Find 4, 0) m. in potential

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Q: Find the position function given this information: v(t) = -3t^2 +48t -144; x(0) = 7

A: Given: v(t) = -3t2 +48t -144 x(0) = 7  

Q: John and his dog are running toward a park which is located 4000.0 m away. John runs at 2.5 m/s in a...

A: Given Data: The distance between the john and the park is, s=4000 m The john runs in a straight line...

Q: A force of 1.5N acts on a 0.20kg cart so as to accelerate it along an air track. The track and force...

A:   simple equation of motion connecting final velocity, initial velocity and distance, will apply her...

Q: Example 2 10 In Bohr atom Friday/daosll -IEPA ceilas 11 3. electron movos from (n<2)to the (n-1) fin...

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Q: A force of 403.0 N is exerted on a 1,250 N car while moving it a distance of 2.69 m. How much work (...

A: Given: The force exerted on the car is 403.0 N. The weight of the car is 1250 N. The displacement of...

Q: Need help on this question please

A: Given, Two carts are moving opposite to each other One cart has a mass of 4 kg and a speed of 5 m/s ...

Q: A brother and sister make a home-made telephone using a string tied between two tin cans. The string...

A: Speed of a transverse wave on a string is given by- v=Tμ where,T is tensionμ is mass per unit length

Q: My question is attached.

A: Write the lens equation. 1o+1i=1f For the convex mirror, the object distance is measured negatively ...

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A: Given data The initial speed of the person is u = 1 m/s The mass of his head is m = 4 kg The distanc...

Q: A worker stands still on a roof sloped at an angle of 34.3° above the horizontal. He is prevented fr...

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Q: 02) The Dropping had been happened for 0.1 kg apple 1 m. what speed dose it hit the ground with? Are...

A: Mass = 0.1 Kg Height = 1m   

Q: 3) A 50-g block as in figure below is connected to a spring on a rough inclined plane that makes an ...

A: Given data: Mass of block is m=50 g. Coefficient of friction is μ=0.25. Inclination of plane is θ=3...

Q: A 20kg box has an inital velocity of 20 m/s to the right. A person applies a force of 200N to the le...

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Q: 0- A softball of mass 250 gm is thrown with an initial velocity of 16 m sec-'at an angle 0 to the ho...

A: A ball is thrown with an initial velocity u at an angle θ to the horizontal. At time t=T, the softba...

Q: Two statues are 3.1 m apart and each have a mass of 840 kg. What is the force of gravity between the...

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Q: I got parts A and B correct, but my answer for part C is wrong. Need help with part C pls.

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Q: 1) A 300-g mass is hung from acoiled spring and it stretches 20 cm.it is then streched an additional...

A: (a) The  frequency of the vibration is f=ω2π=k/m2π=F/ym2π=Fmy2π

Q: b) An ion with 13 protons, 14 neutrons and a charge of 3+ has an atomic number of: A 13 В 14 С 17 D ...

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A: Wave is classified into two types. mechanical wave  nonmechanical wave mechanical wave requires medi...

Q: A 78 kg student runs up the stairs of a football stadium to a height of 12.5 m above the ground in 1...

A: Given : mass of the student, m=78 Kg height, h=12.5 m time taken to climb, t=15 s   Power : Power is...

Q: 1) A 300-g mass is hung from acoiled spring and it stretches 20 cm.it is then streched an additional...

A: The free body diagram of the spring with mass attached is given below. By the Hook's law, F=-kl ......

Q: 3; determine the magnitude of forces FA and FB acting on each chain In order to develop a resultant ...

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Q: A box is moving to the left. While moving, it experiences a net force of 20 N to the right. The forc...

A: Given, the box is moving to the left 20 N  Net force is acting to the right The box moves 4 meter to...

Q: Example 1 : what volume of air at an atm. Pressure (1.01 * 10° N/m") IS needed to fill 14.2 liter (s...

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Q: The clouds that surround Venus are so thick that the planet actually absorbs less sunlight than the ...

A: Required :  Reason for the high surface temperature of Venus.

Q: 1) A 300 -g mass is hung from acoiled spring and it stretches 20 cm.it is then streched an additiona...

A: Given that, Mass = 300 g Stretches= 20 cm Additional stretches = 15 cm    

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.