Two long parallel wires carry currents of 10a (left wire) and 20a (right wire) in same direction. the distance between the wires are is 2cm. a) find magnitude of force per unit length exerted by the wires on each other
b) fins force if both wires are 5cm long
c) find the strength of the magnetic fields produced by each wire at a location 3cm to the right of 20a wire
d) find the strength and direction of the net magnetic field at this location

Rosa records the distance that a toy car rolls and the time it takes to cover the distance. what scientific practice is this? collecting data asking a question providing explanations communicating results

Boxing gloves are padded to lessen the force of a blow. (a) calculate the force exerted by a boxing glove on an opponent’s face, if the glove and face compress 7.50 cm during a blow in which the 7.00-kg arm and glove are brought to rest from an initial speed of 10.0 m/s. (b) calculate the force exerted by an identical blow in the gory old days when no gloves were used and the knuckles and face would compress only 2.00 cm. (c) discuss the magnitude of the force with glove on. does it seem high enough to cause damage even though it is lower than the force with no glove?

The heliocentric and the geocentric models of the solar system included these central principles