Answer:
Two physical systems are in thermal equilibrium if there is no net flow of thermal energy between them when they are connected by a path permeable to heat. Thermal equilibrium obeys the zeroth law of thermodynamics.
Explanation:
Answer:
Find answers below.
Explanation:
Given the following data;
c. Power = 180 Watts
Time = 2 hours = 60*60*2 = 7200 seconds
To find the energy used;
Energy = power * time
Energy = 180 * 7200
Energy = 1296000 Joules
d. Power = 210 Watts
Time = 3 hours = 60*60*3 =
Energy = 210 * 10800
Energy = 2268000 Joules
Answer:
1.23 m/s^2
Explanation:
Knowing that mg= Weight force, plug in our values 55kg*g=67.9. Divide both sides by 55 and you will get the value of acceleration due to gravity (g) which = 1.23 m/s^2
Answer:1.21A
Explanation: E= Ivt
I=?
V=220volts
E=7.2*10^6
t=45mins
Convert t from mins to secs.
T=45*60=2700secs
E=Ivt
I= E/vt
I=720000/220*2700
I= 720000/594000
I=1.21A
A would be the wavelength, C would be a crest, D would be the amplitude, leaving B which is the trough.