A99-m-long wire carrying a current of 4.1 a will be accompanied by a magnetic field of what strength at a distance of 0.056 m from the wire? (magnetic permeability in empty space µ0 = 4π × 10−7 t⋅m/a)

The magnetic field strength=1.46 x 10⁻⁵ T

Explanation:

the magnetic field is given by

B=

μo= 4π x 10⁻⁷ Tm/A

i= current= 4.1 A

r=0.056 m

B= (4π x 10⁻⁷)(4.1) / (2π*0.056)

B=1.46 x 10⁻⁵ T

the cellphone, they would then know if the killer would have contacted them or always hated them. or if it was a breakup. but if that is not the case, then it would be the clothing. to put in a bullet, it would have to be put in by hands. hands have finger prints which, would have giving you the answer of who done it.

explanation:

note: the given question is incomplete.

complete question is given below.

which is an example of kinetic energy?

a. the energy stored in ethanol  

b. a hockey puck sliding across the ice  

c. a compressed spring  

d. a ball sitting at the top of a ramp

solution: the kinetic energy is the energy posses by the virtue of the motion of the object.

in the given options, a, c and d are the example of potential energy because it is the energy posses by the virtue of the rest of the object. but option b has the kinetic energy as the object is in motion.

hence, a hockey puck sliding across the ice   is the apex example of kinetic energy.

so, the option (b) a hockey puck sliding across the ice   is the correct option.