Asinusoidal electromagnetic wave is propagating in a vacuum in the +z-direction.
if at a particular instant and at a certain point in space the electric field is in the +x-direction and has a magnitude of 3.40v/m, what is the magnitude of the magnetic field of the wave at this same point in space and instant in time?
the specific heat capacity of wood is 1.76
the mass is attached to the spring vertically, so at equilibrium the force of gravity pulling down on the mass will equal the spring force acting upwards on the mass.
f = mg
m is the mass.
g is the acceleration due to earth's gravity.
for the spring:
f = kδx
k is the spring constant.
δx is the spring extension.
set the force of gravity and spring force equal to each other:
mg = kδx
m = 8.4 kg
g = 9.81 m/s²
k = 4.7 n/m
substitute the terms in the equation with the given values and solve for δx:
8.4×9.81 = 4.7δxδx = 17.53 m
representative si the final answer! : )
answer: the temperature of the aluminium pan was decreased by the 117.25 kelvins.
energy given by the aluminium pan =q= -5400 j
negative sign indicates that energy is released by the aluminium pan.
mass of the pan=m = 50 g = 0.05 kg(1000g = 1kg)
change in temperature =
specif heat of he aluminium = c = 921.096j/kg k
the negative value of change is temperature means that temperature of the aluminium pan was decreased by the 117.25 kelvins.
if at a parti...