Holden is trying to turn man the velocity of his car, he went 20 meters east, turned around and left 40 meters less, he turned t
1 answer:
Answer:
3 m/s east
Explanation:
The velocity of the car is given by:
where
d is the displacement
t is the time taken
The displacement of the car does not depend on the path of the car, but just on it the difference between its final position and its starting position, so it is equal to 15 metres east. The time taken is 5 seconds, therefore the velocity is equal to
and the direction is east.
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Answer:
the heat absorbed by the block of copper is 74368.476J
Explanation:
Hello!
To solve this problem use the first law of thermodynamics that states that the heat applied to a system is the difference between the initial and final energy considering that the mass and the specific heat do not change so we can infer the following equation
Q=mCp(T2-T1)
Where
Q=heat
m=mass=2.3kg
Cp=0.092 kcal/(kg C)=384.93J/kgK
T2=Final temperatura= 90C
T1= initial temperature=6 C
solving
the heat absorbed by the block of copper is 74368.476J
Answer:38.66 m
Explanation:
Given
launch angle
launch velocity
center of mass continue to travel its original Path so it center of mass will be at a distance of
Center of mass will be at
(b)if one of the piece will be at x=26 m then other will be at