Explanation:
for v vs t graph for t=9 to 11,v=15kmph
similarly v2=0,v3=60kmph&v4= -40kmph
Answer:
B) The lightbulb uses 4,104,000 J more than the stereo.
It's called a star when it creates its own energy
Explanation:
potential energy= mgh
30 × 10 × 30 = 9000J or 9KJ
Answer:
scalar quantity
Explanation:
Vector quantities have two characteristics, a magnitude and a direction. Scalar quantities have only a magnitude.
