Physics Answers

Object A and Object B are charged with +47.4 μ coulombs and +16.3 μ coulombs, respectively. Given that the two objects are separated by 0.64 m, Which of the following statements is/are valid?

a. Object A attracts object B with a force of 27.1 N

b. Object A repels object B with a force of 17:0N

c. Object B attracts object A with a force of 27.1N

d. Object A attracts object B with a force of 118.7 N

e. Object 8 repeli object A with a force of 120 N

1. Object Battracts object A with a force of 118.7 N

Object 8 repels object A with a force of 433 N

n Object A repels object 8 with a force of 43. N

Two neutral objects are rubbed against each other with the aim of facilitating charging by friction Which of the

following are valid possibilities?

a. One object lost 58 electrons and the other last 58 protons

b. Both objects lost 58 electrons

c. One object gained 58 electrons and the other gained 58 protons

d. One object gained 58 electrons and the other lost 58 electrons

e. Both objects gained 58 protons

f. Both objects lost 58 protons

g. One object gained 58 protons and the other lost 58 protons

h. Both objects gained 58 electrons

A different car accelerative from 0.12 m/s to 0. 52 meter per second that celebration of the car was 0.0 40 m/s squared the work done to accelerate the car was 0.48 joules

calculate the resultant force force needed to accelerate the car explain why the car has a maximum speed

A ball of mass 0.25kg loses one third of it's velocity on collision with an identical ball 9/2 at rest after collision q moves off with a speed of 2m/s in the original direction of p. Calculate the original velocity of p.

A 220v 60hz of alternating current is connected to an inductance of 3.5h what is the current passing through the inductor

Show that the period of oscillation on a main helical spring is given by T=2π√{k/m}

Find out the inductor current equation for an RL circuit with step response, assume the initial current through the inductor is 𝐼0.

A circular iron ring of mean diameter 25 cm and cross-sectional area 9 𝑐𝑚2 is wound with a coil of 100 turns and carries a current of 1.5 A. The relative permeability of iron is 2000. Calculate the amount of flux produced in the ring

In an R–L–C series circuit a maximum current of 0.5 A is obtained by varying the value of inductance L. The supply voltage is fixed at 230 V, 50 Hz. When maximum current flows through the circuit, the voltage measured across the capacitor is 350 V. What are the values of the circuit parameters? 

Apply transient analysis in RL circuit and reduce expression for current in such circuits.