a) The one with the higher capacity will have smaller change in temperature
b) Yes, because the total energy is saved (enclosed) inside.
c) Heat from hot iron heats the water, then if there is still enough heat, the water can boil and evaporate
d) Q2+Q1=0, Q1 is for Iron and Q2 is for water
-C1M1(t-T1)=C2M2(t-T2)
C.
e) Closed system (isolated system) because the energy is transferred only between water and iron.
f) It would be smaller.
Answer:
Transverse
Explanation:
Electromagnetic waves don't depend on the medium they travel through like a mechanical wave does, so they aren't mechanical. They don't oscillate (move back in forth) in the direction they travel either, ruling out compressional and longitudinal waves.
That leaves tranverse waves, the ones we're most used to, since they look very "wavelike," with smooth peaks and valleys. Electromagnic waves behave like these, oscillating in a plane perpendicular to the direction they're traveling in.
Answer:
t = 13.9s
Explanation:
u = 0 m/s
v = 75 km/h
= 20.83 m/s
a = 1.5 m/s²
Using
v = u + at
20.83 = 0 + 1.5t
t = 13.9s
