Answer:
1.1 Two poles: North and South Poles.
1.2 - Staple pin - Nail - Tip of my phone charger - Metal keys - Cloth Hanger
1.3 - Wooden bed cot - Plastic pen - Game pad - Wooden shelf - Paper - A T-shirt
1.4 Yes
1.5 No
Heat, like sound, is kinetic energy. Molecules at higher temperatures heave more energy, thus they can vibrate faster. Since the molecules vibrate faster, sound waves can travel more quickly.
So the answer is A.
Answer:
true
Explanation:
depends on how young it starts usually at age 10 or 12 sometimes 13 are the most common ages to start this
Answer:
b
Explanation:
this is because inoder. for combustion or burning to take place oxygen must be available
Answer:
2234.63
Explanation:
Work done per cycle by the engine is calculated as;
#Since volume doesn't change in the isochoric steps, there is no work done, hence:
#For an isothermal change of state(ideal gas):
#for the expansion process:
Hence, the engine does 2234.63J per second.
