Answer:
An element is a pure substance that cannot be separated into simpler substances by chemical or physical means. There are about 117 elements.
Explanation:
Hello,
Your answer would be:
So Dina's maximum velocity on the bottom of the ski slope is v=9.9 m/s.
Answer:
a. The acceleration would increase.
Explanation:
because we know that
F=ma
m= mass and a= acceleration
so Mass is same for the cart in any situation that's why only acceleration could increase.
This is a conservation of momentum question. Initial momentum of the system is the momentum of ball 1 plus the momentum of ball 2. The final momentum of the system should be 0 since the balls stand still after the collision.
mv + mv = 0
mv = -mv
(20)(20) = -(40)Vi
400 = -40Vi
Vi = -10
So ball 2 should travel at 10m/s to the left
V1 =16 m/s and V2 =24 m/s. Constant acceleration = 9.8 m/s. The range for a horizontal drop is R=V1* the square root(2h/g. R1=16 * the square root of 2*5.4/9.8. =16.796 meters. And R2= 24 * the square root of 2*5.4/9.8 = 25.194. R2 - R1 = how far apart the two vessel will be. 25.194 - 16.796 = 8.398 or 8.4 meters
