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3 years ago

What is the effect of day lenght in plant growth? dependent and independent

1 answer:

5 0

Plants use energy from the Sun to trigger photosynthesis carbon dioxide pulled from the air and water drawn from the roots is converted to sugar to be used wright away or to be stored the longer the day the more food can be produced

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rank the group 1a elements tested in order of increasing energy emission when electrons returns to the ground state. explain thi

labwork [276]

Answer:

The increasing order of energy emission is as follow

Li < Na < K < Rb < Cs

Explanation:

The Characteristic colors of alkali metals are

Li-crimson red
Na- golden yellow
K- pale violet
Rb and Cs- violet

These flame color show that when we moved from down the group, the wavelength decreases (frequency increases).
As the color of Li is red that shows ,it has less emission energy as compare to Rb and Cs that have color violet (more emission energy).

3 0

3 years ago

Which 3 characteristics are used to describe all waves, regardless of type? Check all that apply.

Dmitry [639]

Answer:

Frequency

Trough

Crest

Explanation:

6 0

3 years ago

Read 2 more answers

10. Given the reaction:

andrey2020 [161]

Answer:

B hope help you stay happy

5 0

3 years ago

Assume a gasoline is isooctane, which has a density of 0.692 g/ml. What is the mass of 3.8 gal of the gasoline (1 gal = 3.78 l)?

sveticcg [70]

Density is the ratio of mass to the volume.

The mathematical expression is given as:

$density=\frac{mass}{volume}$

Now, density of isooctane = $0.692 g/mL$

Volume = $3.8 gal$

Since, 1 gallon = 3.78 L

So, 3.8 gal = $3.78 L\times 3.8$

= $14.364 L$

As, 1 L = 1000 mL

Therefore, $14.364 L$ = $14.364 L\times 1000 mL$

Volume in mL = $14364 mL$

Put the values,

$0.692 g/mL=\frac{mass}{14364 mL}$

$m = 0.692 g/mL\times 14364 mL$

= $9939.888 g$

Hence, mass of 3.8 gal of the gasoline is $9939.888 g$ .

6 0

3 years ago

A satellite and a hockey puck are alike because they illustrate Newton's first law of motion.

lutik1710 [3]

Answer:

It would be True

Explanation:

Because they both have the same push of gravity. Gravity affects all objects equally. If you drop an egg and a watermelon at the same time they would both collide with the floor at the same time.

8 0

3 years ago