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3 years ago

Some plants have tap roots; long roots that grow deep into the ground. Where would tap roots for plants be MOST useful?

Chemistry

1 answer:

slava [35]3 years ago

4 0

Answer:

Food storage. The food reserves can be drawn upon to ensure good development of a flower stalk and seeds.

Explanation:

Hope this helps!

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Air resistance depends upon _____.

Sedaia [141]

Answer:

ye its b

Explanation:

6 0

2 years ago

Under what conditions can calcium bromide conduct electricity

Marat540 [252]

CaBr conducts electricity in the molten state but does not conduct as a solid. ionic dissolution equation.

7 0

2 years ago

How many phosphate bonds are responsible for the high energy content of ATP?

Nataly_w [17]

The answer is a. one. There are three phosphate bonds in the ATP but only the first bond is responsible for the high energy. When this bond break, ATP will change to ADP.

4 0

3 years ago

Read 2 more answers

Which of the following equations has correct formulas and also is a balanced equation?

aliya0001 [1]

Answer : The correct option is, (B)

Explanation :

Balance equation : Balanced equation are those equation in which the number of atoms of each element and the total charge must be same on products side and reactants side.

In the given options, only option (B) equation has correct formula and also a balanced equation.

$2Be+O_2\rightarrow 2BeO$

while the other options has incorrect formulas and also an unbalanced equations.

The correct equation for option A is, $CaCO_3\rightarrow CaO+CO_2$

The correct equation for option C is, $2Mg+O_2\rightarrow 2MgO$

The correct equation for option D is, $KCl+HNO_3\rightarrow HCl+KNO_3$

Hence, the correct answer is, (B) $2Be+O_2\rightarrow 2BeO$

5 0

3 years ago

A laser produces 17.0 mW of light. In 4.00 hr , the laser emits 6.04×1020 photons. What is the wavelength of the laser?

Vlad [161]

The unit 'mW' means milliwatts. It is a unit of work. There are 1,000 milliwatts in a 1 Watt of work. In 4 hours, there are 14,400 seconds.

Work= Energy/time
17 mW * 1 W/1000 mW = Energy/(14,400 seconds)
Solving for energy,
Energy = 244.8 J
Energy/photon = 244.8 J/(6.04×10²⁰) = 4.053×10⁻¹⁹ J/photon

Using the Planck's equation:

E = hc/λ
where h = 6.626×10⁻³⁴ m²·kg/s, c = 3,00,000,000 m/s and λ is the wavelength

4.053×10⁻¹⁹ J/photon = (6.626×10⁻³⁴ m²·kg/s)(3,00,000,000 m/s)/λ
λ = 4.9×10⁻⁷ m or 49 micrometers

5 0

2 years ago

Read 2 more answers