300 minuts
5 hours
1.2 killowatt
6 killowatt hour
6*0.15=0.9
$0.9
the mole of the substance will boiling or freezing point ,
all of it melt or boiled,but the temperature won't change
water boil at 212°F (100°C)
energy remove and it will be ice
if energy is added to the matter
hope you understand!!!!!!!!!!!
v1f = -0.16 ms
Explanation:
Use the conservation law of linear momentum:
m1v1i + m2v2i = m1v1f + m2v2f
where
v1i = v2i = 0
m1 = 160 kg
m2 = 0.50 kg
v2f = 50m/s
v1f = ?
So we have
0 = (160 kg)v1f + (0.5 kg)(50 m/s)
v1f = -(25 kg-m/s)/(160 kg)
= -0.16 m/s
Note: the negative sign means that its direction is opposite that of the arrow.
Answer:
answer is (c) density is not a characteristics of vibration.
hope it is right answer for it!!
