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2 years ago

Why would you want to use a material that is not likely to undergo a phsical change for your stepping stone?

1 answer:

5 0

Because a good stepping stone would be a solid and if that solid were to melt or turn to gas you’d have no stepping stone.

You might be interested in

Water flows over Niagara Falss at the average rate of 2,400,000 kg/s, and the average height of the falls is about 50 m. Knowing

liberstina [14]

Answer:

1. 176 × 10^12 W ; 78400000000

Explanation:

Given the following :

Fall rate = 2,400,000kg/s

Average height of fall = 50m

Gravitational Potential of falling water = mgh = mass × acceleration due to gravity × height =

How many 15 W LED light bulbs could it power?

Recall : power = workdone / time

Workdone = gravitational potential energy

Mass of water = density * volume

Density of water = 1 * 10^3kg/m^3

Rate of fow = volume / time = 2400000

Hence,

Power = 1000 * 2,400,000 * 9.8 * 50

Power = 1176000000000

Power = 1. 176 × 10^12 W

How many 15 W LED light bulbs could it power?

1176000000000 / 15 = 78400000000

= 78400000000 15 W bulbs

4 0

3 years ago

If the oxidation number of an atom decreases, the atom has undergone oxidation.

Bumek [7]

Oxidation is a process when an atom, a group of atoms, or an ion loses electrons.

For example,

Cu⁰ -------> Cu⁺² + 2e⁻. This is an oxidation process.

As we can see an oxidation number was 0, and it became +2. The oxidation number is increased. Oxidation number of the atom, when an atom has undergone oxidation, increases.

So, answer is b.False.

8 0

3 years ago

Vamos para playa oh te rajas lol

Anuta_ua [19.1K]

Answer:

let's go to the beach or u will relax lol

6 0

2 years ago

To achieve an octet of valence electrons, a cesium atom will become an ion with what charge?

lesantik [10]

The answer is +1 because it gives up it's electron and becomes positive:)

8 0

2 years ago

Both owls and snakes preying on mice in a forest is an example of

finlep [7]

Competition as the owl and snakes are both preying on the mice in a forest so they are both competing for the food source of mice.

6 0

2 years ago