When an electron jumps from high-to low-energy levels:
a. radio and gamma rays are produced.
b. a wave of visible light is produced.
c. a wave with parallel electric and magnetic fields results.
d. waves of differing speeds may be produced.

Which of the following is a homogenous mixture? o a. a toy box filled with toys o b. blood o c. trail mix o d. spaghetti and meatballs submit

The transfer of heat through the movement of a gas or liquid a. convection b. conduction c. radiation

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?