The hall effect can be used to calculate the charge-carrier number density in a conductor. if a
conductor carrying a current of 2.0 a is 0.5 mm thick, and the hall effect voltage is 4.5 µv when
it is in a uniform magnetic field of 1.2 t, what is the density of charge carriers in the conductor

In which of the following cases is work being done on an object? question 2 options: pushing against a locked door carrying a box down a corridor pulling a trailer up a hill suspending a heavy weight with a strong

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?

Explain why you think this diagram shows what happened to the carbon in the biodome.