Answer:
ish all usual isaiah or easier fall iF.Hg. diff potty off radial ish usually appraisal
Answer:
Ts=51.83C
Explanation:
First we calculate the surface area of the cylinder, neglecting the top and bottom covers as indicated by the question
Cilinder Area= A=πDL
L=200mm=0.2m
D=20mm=0.02m
A=π(0.02m)(0.2m)=0.012566m^2
we use the equation for heat transfer by convection
q=ha(Ts-T)
q= heat=2Kw=2000W
A=Area=0.012566m^2
Ts=surface temperature
T=water temperature=20C
Solving for ts
Ts=q/(ha)+T
Ts=2000/(5000*0.012566m^2)+20=51.83C
The role of thermal energy is to balance the electrical energy lost from the light bulb.
<h3>
Energy conservation</h3>
The law of energy conservation states that energy can neither be created nor destroyed but can be transformed from one form to another.
<h3>Thermal energy</h3>
This is a form of energy that occurs due to rise in temperature.
The role of thermal energy is to balance the electrical energy lost from the light bulb.
Learn more about conservation of energy here: brainly.com/question/166559
Answer:
The red ball has greater kinetic energy because it is moving at the same speed as the yellow ball, which is lighter than the red ball.
Explanation:
Formula for kinetic energy: 1/2mv²
Yellow ball:
= 1/2(2)(3)²
=1/2(2)(9)
= 9J
Red ball:
= 1/2(3)(3)²
=1/2(3)(9)
= 13.5J
Explanation:
Speed = 12 m/s ⇒ 43.2 km/h
Time = 10 hour
Speed = Distance/Time
43.2 = Distance/10
Distance = 43.2 x 10
Distance = 432 kilometers