A 4 column table with 4 rows. The first column is labeled device with entries W, X, Y, Z. The second column is labeled wire loops with entries 60, 40, 30, 20. The third column is labeled current in milliamps with entries 0.0, 0.2, 0.1, 0.1. The last column is labeled metal core with entries yes, yes, no, no.
Which lists the devices in order from greatest magnetic field strength to weakest?

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 necleus of an atom is made up of what subatomic particles?

Exercise 2. find the wavelength of a photon emitted when an electron jumps from the n = 3 energy level down to the n = 2 energy level. where is this photon in the electromagnetic spectrum?