Una corriente I fluye por un cable de radio R. Si se distribuye de tal manera que la densidad de corriente volumétrica sea proporcional a 1(ρ+R)2, es decir J⃗ alfa 1(ρ+R)2z^
La constante de proporcionalidad correcta β que vuelve dimensionalmente consistente la ecuación es:

To run the physics cart, the fan speed of the cart is manipulated. this is the (blank) variable. the cart accelerates due to the speed of the fan. acceleration is therefore the (blank) variable. a “constant” is a parameter that stays the same regardless of the variables. one parameter of the cart that is held constant is the (blank) .

14. a body is projected with velocity vi from a.at the same time another body is projectedvertically upwards from point b withvelocity v2 lies vertically below the highestpoint. both the bodies collide thenv2÷v1is

The electric potential v is constant everywhere within a certain region of space. which statement below is true? the choices are: the electric field is also constant (but not zero) within the region. a charged particle placed within the region will experience an electric force. the electric field is zero everywhere within the region. the electric field varies from place to place within the region.