Answer:
25 I'm pretty sure sorry if I'm wrong
Answer:
Explanation:
Given
mass of automobile
velocity of automobile
If the automobile crashes into the brick wall then it's kinetic energy is converted into thermal and demolishing energy to wall.
Car completely stops as it crashes into the wall so Energy converted into demolition and thermal energy
Q in = Q out
0.25 x 4200 x (90-t)=0.05 x 4200 x (t-0)
1050 (90-t)=210t
94500-1050t=210t
94500=1260t
t=75°
The student's average speed for the dash was 8.2 m/s. It's not possible to completely describe the student's velocity, because there's no information to tell us what direction she ran.
a cartesian diver is a classic science experiment which demonstrates the principle of buoyancy and the ideal gas law.