Answer:
a)
b)
Explanation:
a) The displacement of the first object is 22.5 m, so we can use the next equation:
positive acceleration.
b) Using the same equation we can find the second value of the acceleration:
positive acceleration.
I hope it helps you!
Answer:
Social media has helped many businesses grow and promote itself, and has helped people find a better way to connect and communicate with one another. On the other hand, it's also provided many people with problems involving mental health, emotional insecurities, and waste of time
Explanation:
what they said is correct
The major negative consequence that the global dependence on fossil fuels would likely result is the worldwide phenomenon called the global warming. The burning of fossil fuels releases carbon dioxide into the atmosphere wherein excess build-up of these causes to trap more sunlight on the earth's surface causing it to warm.
Answer:
3kg sledgehammer swung at 1.5 m/s
Explanation:
Small Sledgehammer:
Mass:3.0
Velocity:1.5
MASS×VELOCITY=MOMENTUM
3.0×1.5= 4.5 (momentum)
Large Sledgehammer:
Mass:4.0
Velocity:0.9
4.0×0.9=3.6 (momentum)
higher momentum is the smaller Sledgehammer.
Answer:
10.03 s is the time the decoy is in the air
Explanation:
From the information given we know:
- because is measured clockwise from horizontal.
- The initial speed of the decoy is the plane's speed at the moment of release
We will need to work in meters and m/s, so
The horizontal motion of a projectile is given by:
because , this becomes
We have that , solving for <em>t, </em>we have