Answer:
pumpkin
Explanation:
watermelon and pumpkins are close to shape and size
Answer:
u = 449 m/s
Explanation:
Given,
Mass of the bullet, m = 26 g
Mass of the wooden block,M = 4.7 Kg
height of the block,h = 0.31 m
initial speed of the block, u = ?
Using conservation of energy




v = 2.47 m/s
Now, using conservation of momentum to calculate the speed of the bullet.
m u + M u' = (M+m)v
m u = (M+m)v
0.026 x u = (4.7+0.026) x 2.47
u = 449 m/s
Hence, the speed of the bullet is equal to 449 m/s.
Answer:
When energy contained in coal is turned into heat, and then into electrical energy. As boiling water heated by the burning coal is cooled, steam forges from these cone-shaped cooling towers.
It is C. A description goes into the details about something, and an explanation is a statement that clarifies something, generally a question.
The answer is:
It is a measure of the strength of the bonds between ions.
Lattice energy is an estimate of the strength of the bonds formed by ionic compounds.
The first two choices are wrong because it is actually the opposite.
- As the ion size increases, lattice energy <u>decreases</u>.
- As charge of ions increases, lattice energy <u>increases</u>
As for the other third option, it is wrong because lattice energy is the energy RELEASED not absorbed.