Fig. 19-4 shows two wires, in cross section, carrying 7.0 amperes out of the page. determine the total magnetic field, due to both wires, at point x midway between the wires.

True or false graphs must include scales that increase by the same amount

Which subatomic particle has a negative charge

Awater balloon launcher uses an elastic band with a spring constant of 115 n/m to use thee launcher you stretch thee band back with a balloon n it the water balloons have a mass of 1.3 kg a) if you stretch the band by 0.8 m, what elastic force will the band exert? b) with the band stretched 0.8 m, how much elastic potential energy is stored in the spring? c) if you release the band, it pushes forward. what is the kinetic energy of the balloon when it reaches the natural length of the band? d) what is the speed of the balloon when it reaches the natural length of the band?