Physics, 07.04.2020 00:44 wowihavefun

Consider this system of charges in the picture, where 2 charges +Q and 2 charges -Q are located, alternated, in the vertices of a square (a is the side).

a) Suppose that one of the -Q charges gets "kicked" and is threw out with a velocity v0, while the other three charges are in a state of rest. If the moving charge has a mass m, what's its velocity at an infinite distance from the other charges (result in the figure)?

b) Suppose that the other -Q charge has a mass m too and is moved away with a velocity v0. When it's at an infinite distance from the +Q charges, its speed is bigger, lesser or equal to the one found in the point a)? Explain.

Consider this system of charges in the picture, where 2 charges +Q and 2 charges -Q are located, alt

Answers: 1

Show answers

Another question on Physics

Physics, 22.06.2019 14:30

Which compound is held together by the electrostatic force between two ions? a. co2 b. cci4 c. h2s d. mgf2

Answers: 1

Answer

Physics, 22.06.2019 17:40

You throw a baseball directly upward at time =0 at an initial speed of 14.9 m/s. what is the maximum height the ball reaches above where it leaves your hand? ignore air resistance and take =9.80 m/s2.

Answers: 1

Answer

Physics, 22.06.2019 19:10

3. a worker pushes a 30.5 kg polished stone along a polished table with a force on bonin a straight line for 5.20 s after starting from rest. there is no friction between thestone and the table. at the end of the table. the stone is hooked to a cable with a lengthof 62.0 cm to rotate it to a rough table to store until they can be picked up. the roughtable has a coefficient of static friction 0.702 with the polished stone. remember that 8= 9.80 m/s2a) what is the speed of the stone when it is hooked to the cable? b) what is the tension in the cable while the stone is rotating? (there is still nofriction)c) how much force is needed to make the stone begin sliding from rest on therough table? ius = 0.70262.0 cm30.5 kg20.5 kg6= 0

Answers: 2

Answer

Physics, 23.06.2019 10:10

Now that we have a feel for the state of the circuit in its steady state, let us obtain the expression for the current in the circuit as a function of time. note that we can use the loop rule (going around counterclockwise): e−vr−vl=0. note as well that vr=ir and vl=ldidt. using these equations, we can get, after some rearranging of the variables and making the subsitution x=er−i, dxx=−rldt. integrating both sides of this equation yields x=x0e−rt/l. use this last expression to obtain an expression for i(t). remember that x=er−i and that i0=i(0)=0. express your answer in terms of e, r, and l. you may or may not need all these variables. use the notation exp(x) for ex.

Answers: 1

Answer

You know the right answer?

Consider this system of charges in the picture, where 2 charges +Q and 2 charges -Q are located, alt...

Questions