Two synchronized microwave sources, a and b, are emitting waves of wavelength 4.0 cm. source a is located on the x-axis at x = 0, source b can be moved along the x-axis, and a microwave receiver is fixed on the x-axis at x = 94 cm. for each of the following positions of source b determine whether the waves from the sources will reach the receiver in phase (constructive interference), out of phase (destructive interference), or with a phase difference of π/2 rad.

Truck traveling west on the highway experiences an acceleration to the east. what could be the cause of this acceleration

Which process is represented by the pv diagram? a. the isobaric process b. the isovolumetric process c. the isothermal process d. the adiabatic process

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?