Answer:
what ar the chances of what.
Answer:
See below
Explanation:
Steady speed = constant slope = A
Increasing speed = increasing slope = C
B is decreasing speed
Displacement can be positive OR negative. The sign implies the direction of the displacement. Negative means that is is moving to the left (sometimes called West) or down (sometimes called South); positive means that is moving to the right (sometimes called East) or up (sometimes called North).
efficiency=work output/work input×100
since it exhausts(use up)3000j of heat that's the work input and the 1500j is the work input
efficiency=1500/3000×100
=50%
Which medium below conducts sound the fastest?
A. a wall
<u>B. Steel
</u>
C. Plastic
D. Cardboard
