What is the repulsive force between two pith balls that are 10.7 cm apart and have equal charges of 31.2 nC?

Q: 12. Calculate the center of mass of a 4 m long aluminum bar with cross-sectional area of 4 cm x 4 cm…

A: Given Data:  It is given that the length of the uniform bar is, L=4 m.  Axis of rotation is located…

Q: 9 and 10. Thanks.

A: 9.The equation for dot product

Q: B A coin sits on a rotating turntable as shown in the figure. At the time shown in the figure, which…

A: We need to say what the direction of friction will be on the coin on turntable.

Q: If a 0.7 Tesla magnet moves into a 140 turn coil with an cross sectional area of 0.08 in 1.4…

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Q: 2) A ray of light is incident from air onto crown glass. Which of the scenarios accurately reflects…

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Q: A long straight wire carrying a current of 0.450 A has a loop with a radius of 5 cm. The current is…

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Q: If a spring has a frequency of 21 Hz and an amplitude of 1.9 m, then find the MAXIMUM velocity. Give…

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Q: 3) A proton enters a magnetic field of 10T and an electric field of 2000 N/C in such a way that it…

A: Moving particle is proton  Charge on proton (e) = 1.6×10-19 C  Magnetic field (B)= 10 Tesla…

Q: In the following diagram, the current passing through 20 Ohm is 1.5 A. 19. What is the current…

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Q: -ncave lens has a focal length of -3 cm. y from the lens. Find the magnification tive answer and an…

A: Focal length of  concave lens                                                   f  = - 3 cm height…

Q: Moving charge generates a magnetic field. If the moving charge is in an already existing field, the…

A: we know that,            When a charged particle moves relative to a magnetic field, it will…

Q: Find the number of turns a solenoid coil with length of 0.06 m should have in order to produce a…

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Q: N vs. TIME graph below, click on the spot where the VELOCITY IS ZERO (the arrow will be placed where…

A: Introduction: When the body does not gets displaced with time, the velocity is said to be zero. So,…

Q: An infinitely long wire is uniformly charged. The voltage difference from r 2 m and r= 4 m is 30…

A: Given:    An infinitely long wire --- uniformly charged.    Voltage difference (ΔV) (between r1 = 4m…

Q: Find the frequency of a wave that has a period of 0.063 seconds.

A: If the time period of wave is T, then  Frequency f=1/T

Q: A metal sphere of radius 30 cm has a net charge of 30.0 nC. What is the magnitude of the electric…

A: Given: In this question, the given details are, A metal sphere of radius 30 cm has a net charge of…

Q: 3. If V = 12 V in the circuit below R = 100 N R2= 200 N %3| R3 = 100 N R5= 300 N R4 = 150 N R, = 100…

A: Solution: Given that V = 12 V and the values of other resistors

Q: A 3,2 km B 120 m #

A: The distance between the man and the drone in the image is 3.2 kilometers. Text label "A" in the…

Q: 5. An object moving in the x-y plane has a position vector given by: 7 = (2t³ - 5t)i + (6 - t¹)ĵ (in…

A: Given  r→=(2t3-5t)i^+(6-t4)j^Required average velocity

Q: The block in the drawing has dimensions LO×2L0×3L0.where Lo =0.3 m. The block has a thermal…

A: Give Thermal conductivity = 100j/s-mC  Delta T = 21- 12 ° C = 9 ° c

Q: Match the following: measured in meters Time for one cycle measured in Hertz (or cycles per second)…

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Q: With what velocity vo should a projectile be started at the center of the Earth to reach the surface…

A: As per the guidelines we can solve only 1 question. Solution of 1st question is given Law of…

Q: = 201². The fan blade in a jet engine rotates from rest with the angular acceleration a = 1 9. find…

A: GIVEN         Angular acceleration = α = 20t2

Q: A conducting bar of length 0.25 m and mass of 0.34 kg is pulled to the right with a Force of 3.0 N.…

A: Write a given values of this question. L=0.25mm=0.34kgF=3.0NB=0.750TR=50Ω