Answer:
a) The resistance of the calf between the electrodes is 
b) The average resistivity of this part of the leg is 
Explanation:
Hi
a) Using Ohm's law 
, solving for 
, we obtain 
b) The volume of the calf is like a cylinder, so 
, with 
and 
, therefore 
. Then we can use 
, this is the average resistivity of this part of the leg.
W = F•∆x•cos ∅ = 10 N × 2 m × cos (180°) = 20 J × -1 = -20 J
<h2>
Answer: physical</h2>
Explanation:
Thermal conductivity is a physical property of materials that enable heat transmission. This means that when a body has thermal conductivity, heat passes from the body of higher temperature to another of lower temperature that is in direct contact with it.
In other words:
This property implies the ability of a material or substance to transfer the kinetic energy of its molecules to adjacent ones or to other materials (or substances) with which it is in contact.
Answer:
n = 2.06 moles
Explanation:
The absolute pressure at depth of 27 inches can be calculated by:
Pressure = Pressure read + Zero Gauge pressure
Zero Gauge pressure = 14.7 psi
Pressure read = 480 psi
Total pressure = 480 psi + 14.7 psi = 494.7 psi
P (psi) = 1/14.696 P(atm)
So, Pressure = 33.66 atm
Temperature = 25°C
The conversion of T( °C) to T(K) is shown below:
T(K) = T( °C) + 273.15
So,
T = (25 + 273.15) K = 298.15 K
T = 298.15 K
Volume = 1.50 L
Using ideal gas equation as:
PV=nRT
where,
P is the pressure
V is the volume
n is the number of moles
T is the temperature
R is Gas constant having value = 0.0821 L.atm/K.mol
Applying the equation as:
33.66 atm × 1.50 L = n × 0.0821 L.atm/K.mol × 298.15 K
⇒n = 2.06 moles
Gold is mostly occurring in solid state in its natural form.
Answer: Option A
<u>Explanation:</u>
Gold is one of the noble metals used by aristocrats. It mostly occurs in the forms of grains or in the forms of rocks. Pure gold cannot be obtained naturally, as gold will be mostly alloyed with silver.
In natural state, gold will be the shiny metal with yellow or pale yellow color and it will be in solid state. They are malleable metal which can be easily mold into different shapes.So among the given options, the natural state of gold is solid state and not liquid and neither gas.
