An  α - particle has mass of m = 6.64 x 10-27 kg and charge q = +2e (e = 1.60 x 10-19 C). Find the magnitude of the electric repulsion between two α - particle at 4.0 cm.

Q: 2. Solve for the magnitude of the electric field of a point charge (straight line) given: 91 = +45µC...

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Q: 25. The switch in Figure P32.25 is open for t<0 and is then thrown closed at time t = 0. Assume R= 4...

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Q: A ball is thrown straight upward. At 5.80 m above its launch point, the ball’s speed is one-half its...

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Q: alculate the total force exerted by the atmosphere on a rectangular table top that measures 1.6 m x ...

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Q: A 1.27-kg sample of water at 14.5°C is in a calorimeter. You drop a piece of steel with a mass of 0....

A: Step 1 Let final temperature be T, then heat lost by steel is heat gained by water. msCs(201−T)=mwC...

Q: book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What ...

A: According to Newton's third law Every action has equal and opposite reaction.

Q: Calculate the net force needed to accelerate a 1500 kg car from 15m/s to 20 m/s in 2.0 s?          ...

A: Given: The mass of the object is 1500 kg. The initial velocity is 15 m/s. The final velocity is 20 m...

Q: -6 -6 Four point charges (two with q = +2.5 × 10' C and two with q = -2.5 x 10' C) are situated at t...

A: Given : q = 2.5 × 10-6 C , q = -2.5 × 10-6 C  Distance between two charges , r = 2 m  Find : Magnitu...

Q: . A) How fast would a motorist have to travel for a yellow traffic light (λ = 590. nm) to appear  gr...

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Q: Two blocks are attached by strings of negligible mass to a pulley with two radii R1 = 0.26 m and R2 ...

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Q: Which of the following is a reversible thermodynamic process? O finite temperature change free expan...

A: Solution: Given: Given the three processes, we are required to find which process is reversible. Pro...

Q: 19. The energy supplied by a unit charge as it moves from one point to the other in the direction of...

A: As requested, I'm goint to solve question number 20, 10, and 12. 20) The electric field is uniform. ...

Q: Point P is midway between two long, straight, parallel wires that run north-south in a horizontal pl...

A: Magnetic field at a point due to a wire carrying a current is given by B = μoI2πd, where μo = magnet...

Q: In the figure, two blocks are connected over a pulley. The mass of block A is 6.50 kg and the coeffi...

A: Given: mA =6.50 kgμk=0.160θ=39°

Q: ideal gas law states that a gas’s pressure P([kg]/[m][s]^2) depends upon its volume V ([m]^3), amoun...

A: Given Pressure depends on volume, number of moles temperature and gas constant.

Q: A meter stick balances horizontally on a knife-edge at the 50.0 cm mark. With two 3.07 g coins stack...

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Q: Consider a silicon pn junction at T 300 K. Assume the doping concentration in the n region is 1020 c...

A: GivenT=300 KDoping concentration in n region ,Nn=1020 cm-3Doping concentration in p region ,Np=1019 ...

Q: a constant angular acceleration 2.50 [rad/s2]. A. How much time does it take to reach an angular vel...

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Q: Which of the following is not a statement or a consequence of the second law of thermodynamics?     ...

A: Let's check each options one by one. 1. The internal energy of an isolated system is constant. this ...

Q: n immersion heater of power 2500 W supplies energy to 3 kg of water at 25°C for 5 minutes The specif...

A: Given: The power of the immersion heater is 2500 W. The time interval is 5 min. The mass of the wate...

Q: Combination of gauge pressure and atmospheric pressure.     absolute     atmospheric     gauge   ...

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Q: What happens when the loop encloses no current? What happens when the loop encloses both positive (o...

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Q: which a 4.0-kg object is suspended in an elevator is equal to 44 N. What is the acceleration of the ...

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Q: Find the capacitance of a parallel plate capacitor having plates of area 6.40 m2 that are separated ...

A: Given that:- Area of plate=6.40 m^2

Q: What will be acceleration of a body of mass 7 kg if a force of 420N is applied to if ?

A: Given: The applied force is 420 N. The mass of the body is 7 kg.

Q: Suppose an object moves along the ​y-axis so that its location is y=​f(x)=x2+x at time x​ (y is in...

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Q: solenoid of length 0.866 m and radius 2.00 cm has 244 turns of wire. What is the magnitude of the ma...

A: Given Number of turn = 244 Length= 0.866 m Number of turn per unit length n = 244/0.866 = 281.76 m-1

Q: Consider a silicon pn junction at T = 300 K. Assume the doping concentration in the n region is 1020...

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Q: Consider a silicon pn junction at T 300 Kwith an acceptor doping concentration (1x 1018cm-3) and a d...

A: Given:- T= 300 K Na= 10^18 cm-3 Nd= 10^15 cm-3 Ni= 1.5×10^10 cm-3 Calculating VT:- VT= KT/e = 8.62×1...

Q: Plaskett's binary system consists of two stars that revolve in a circular orbit about a center of ma...

A: While revolving, the centripetal force will be equal to the gravitational force. Here, G is the gra...

Q: A 195 g block is pressed against a spring of force constant 1.55 kN/m until the block compresses the...

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Q: 3. Two similar tiny balls of mass m hung from a silk threads of length L and carry equal charges q a...

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Q: A puck with mass mA = 3.14 [g] moves eastward with speed vA = 6.25 [m/s]. It then collides with anot...

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Q: A 29-gg rifle bullet traveling 230 m/sm/s embeds itself in a 3.3-kgkg pendulum hanging on a 3.0-mm-l...

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Q: Problem 12 Show that Ā = î – 2j + 5k is parallel to a) B =;b) Č = +

A: According to question we need to show that vector A is parallel to vector B and C.

Q: A circular plane whose r=2.2m is placed in an electric field E=800N/C. The electric field makes an a...

A: Answer:-  Answer (1)  Given  Electric field (E) = 800 N/C  Radius of a circular plane (r) = 2.2 m  A...

Q: 2. In the figure shown, the magnitude of the uniform electric field is E = 70 kN/C . Calculate the e...

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Q: A cylinder contains 0.100 mol of an ideal monatomic gas. Initially ,the gas is at a pressure of 1.00...

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Q: 12–35. A freight train starts from rest and travels with a constant acceleration of 0.5 ft/s². After...

A: The freight train starts from the rest and travels with constant acceleration as below. Constant acc...

Q: ••27 In Fig. 27-40, the resis- tances are R, = 1.0 n and R, = 2.0 0, and the ideal batteries have em...

A: As given, The resistor, R1=1 Ω The resistor, R2=2 Ω The emf voltage, ε1=2 V The emf voltage, ε2=ε3=4...

Q: Question 2 If the magnitude of the electric field at a distance of 24.8 m from a point charge is 9.0...

A: Given : r = 24.8 m E = 9 × 107 N/C  

Q: Consider a silicon pn junction at T = 300 K. Assume the doping concentration in the n region is 1020...

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Q: A square metal plate with mass M=6.00 [kg] and side length 3.00 [m] is pivoted about an axis through...

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Q: What is the magnitude and direction of the force given by D at A (FD on A)?

A: Given, qA = 2.5×10-6 CqD = 2.5×10-6 Cr = 2m Distance between A and D = r2+r2 =2r force given by D at...

Q: Light passes through a single slit and shines on a flat screen that is located 0.4 m away. The width...

A: Given: D=0.4 md=4*10-6mλ=410 nm=410*10-9 m

Q: A cast is moving st riaight "sead at on 2 9 mls It B .accelvert oited What wi ht be: its Velbordy af...

A: Given data :                            Initial velocity   =   u                             Acceler...

Q: Consider a wire made of copper with conductivity 6.0x10^7 omega^-1m^-1, which has a circular cross-s...

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Q: What will happen to the maximum height reached by the cannonball as your launching angle increases

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Q: Which of the following is a reversible thermodynamic process? finite temperature change free expansi...

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Q: A capacitor with an initial potential difference of 100 V is discharged through a resistor when a sw...

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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.