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3 years ago

What are the disadvantages of solar power ; )

Chemistry

2 answers:

Allushta [10]3 years ago

8 0

Answer: Disadvantages of Solar Energy :

Cost. The initial cost of purchasing a solar system is fairly high.
Weather Dependent. Although solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops.
Solar Energy Storage Is Expensive.
Uses a Lot of Space.
Associated with Pollution.

AURORKA [14]3 years ago

7 0

Answer:

Cost. The initial cost of purchasing a solar system is fairly high.

Weather Dependent. Although solar energy can still be collected during cloudy and rainy days, the efficiency of the solar system drops.

Solar Energy Storage Is Expensive.

Uses a Lot of Space.

Associated with Pollution.

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Loud speaker A vibrates 200 times each second. Loud speaker B vibrates 400 times each second.a)What is the frequency of the soun

yaroslaw [1]

Answer:

For a: The frequency produced by loudspeaker A is 200 Hz

For b: Loudspeaker B produces a higher frequency of vibrations.

Explanation:

To calculate the frequency of a loudspeaker, we use the formula:

$\nu=\frac{\text{Number of vibrations}}{\text{Time period}}$ ......(1)

where,

$\nu$ = frequency

For loudspeaker A:

Number of vibrations = 200

Time period = 1 second

Putting values in equation 1:

$\nu_A=\frac{200}{1s}=200Hz$

For loudspeaker B:

Number of vibrations = 400

Time period = 1 second

Putting values in equation 1:

$\nu_B=\frac{400}{1s}=400Hz$

Hence, the frequency produced by loudspeaker A is 200 Hz and loudspeaker B produces a higher frequency of vibrations.

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3 years ago

Determine the molarity of 50 mL of HCl solution with unknown concentration, titrated with 75 mL of 4.0 M NaOH.

DanielleElmas [232]

The answer is 6.0 M HCl

5 0

3 years ago

Recall the postulates of kinetic-molecular theory.

son4ous [18]

This theory is based on the following postulates, or assumptions. Gases are composed of a large number of particles that behave like hard, spherical objects in a state of constant, random motion. These particles move in a straight line until they collide with another particle or the walls of the container.

hope this helps, if you need more, im here to help!

8 0

4 years ago

Which value is most likely to be the pH of a salt that is formed by the reaction of a weak acid and a strong base?

murzikaleks [220]

Answer:

8.7

Explanation:

A weak acid and a strong base will form a more basic salt.

2.0 is more acidic, you'll usually see this from a reaction between a strong acid and a weak base.

6.8 and 7.0 are neutral (or close to neutral) and are formed from reactions between weak acids and weak bases, or strong acids and strong bases.

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3 years ago

Read 2 more answers

What is the mass in grams of one nitrogen molecule?

Oksana_A [137]

Answer:

The mass of one Nitrogen molecule is option C

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3 years ago