If you are comparing it to a real life situation, then there will be a loss of energy. The reason why is because when the ball is starting from initial height, as you drop it, the ball gains a downwards velocity due to gravity. However, gravity is not the only force in play. In real life application, air resistance is present, which decreases the ball's acceleration. Thus, causing the ball to lose energy and finally stop on the surface.
The biggest one is when we breathe from our nose and mouth
Answer
NB:
- speed, U is measure in m/s
- acceleration, a is measured in m/s²
-time t in seconds , s
Therefore conversation must be made
Speed U = 20km/hrs
=20km÷1hr
But 20km= 20×1000=20000m
1hr= 1×60min×60sec=3600s
U=20000÷3600=5.56m/s
a=30km/hrs
=30km÷1hr
But 30km=30×1000=30000
1hr=3600s
a=30000÷3600=8.33m/s²
From the equation of motion
S=Ut + ½ at².
Where s= distance
S = 5.56m/s × 20s + ½(8.33m/s²)(20s)²
S = 1777.3m
Answer:
4 m/s
Explanation:
T = Tension
m = Mass of string
Velocity of wave in string is given by
For first cable
For second cable
The speed of wave in cable two is 4 m/s
B Since when each object is negatively charged it becomes a electronic. Basically