The top of a cliff is located a distance H above the ground. At a distance H/2 there is a branch that juts out from the side of the cliff, and on this branch a bird’s nest is located. A stone is thrown at the nest with the same initial speed, either straight downward from the top of the cliff or straight upward from the ground. In the absence of air resistance, which stone hits the nest in the least amount of time?

ice to water 1 water to vapour 2 latent heat

0.11 m/s and 0.28 m/s should be correct

firearm identification is the process of analyzing the bullets and cartridge cases left at a crime scene to determine if they came from a particular firearm. marks on the bullets and cartridges may be common to every firearm of that type. these are called class characteristics.

the best answer for these questions would be:

1.            c. is smaller

2.            d) concrete operational

3.            b) interaction with the environment – the children interact with their environment can them learn more.

4.            a) parents who reason openly with children can limit a child’s cognitive ability.