All the spheres are similar because they have no edges
Answer:
A it is less dense than water
Explanation:
The density, of a substance is its mass per unit volume
Answer:
<em>If the amount of water in the glass is close to brimming, then the pitch will ring as high-toned. </em>
Hope it helped :)
Answer:
V = 0.714m/s
Explanation:
Full solution calculation can be found in the attachment below.
From the principle of conservation of linear momentum, the sum of momentum before collision equals the sum of momentum after collision.
Before collision only the train had momentum. After the collision the train and the boxcars stick together and move as one body. The initial momentum of the train is now shared with the boxcars as they move together as one body. The both move with a common velocity v.
See the attachment below for the solution calculation.