Answer:
frequency = 2.07 x 10¹³ Hz
Explanation:
To find the frequency of the photon, you need to use the following equation:
E = hv
In this formula,
-----> E = energy (J)
-----> h = Planck's Constant (6.626 x 10⁻³⁴ J*s)
-----> v = frequency (Hz)
Since you have been given values for two of the variables (in the correct units), you can plug them into the equation and simplify to find the frequency.
E = hv <----- General Equation
E = (6.626 x 10⁻³⁴ J*s)v <---- Plug in Planck's Constant
1.37 x 10⁻²⁰ J = (6.626 x 10⁻³⁴ J*s)v <----- Plug in energy (given)
2.07 x 10¹³ = v <----- Divide both sides by 6.626 x 10⁻³⁴
Weathering is the process by which rocks are broken down by either physical or chemical means. Physical weathering involves physical factors that cause mechanical break down of rocks while chemical weathering involves chemical reactions between the contents of the rocks and other factors such air (oxygen). Agents of weathering are the factors that cause or enhance both physical and chemical weathering. Some of these factors cause both physical and chemical weathering these includes water and temperature.
Explanation:
ionic compounds have high melting points
Answer:
- <u>Agents that can homogenize immiscible solutions are</u> milk , lotion , glue , paint ,alcohol etc.
- The primary difference between fats and oils is that, whereas oils are generally derived from plants, fats are usually derived from animals.
- Eating too much of the wrong kinds of fats will increase unhealthy LDL cholesterol of decrease healthy HDL cholesterol, such as saturated and trans fats.
- Your risk of high blood pressure, arterial hardening (atherosclerosis), heart attack and stroke may be enhanced by the imbalance of fats and oils.
- <u>Among the doctor and the patient , the patient's health is deteriorating. </u>
<u>To minimize the intake of fats and oils by suggesting them simple ways-</u>
- Eat more vegetables and fruits.
- Stop cream and cheese sauces, or use low-fat milk and cheese to make meals.
- Instead of butter or margarine, try cooking with herbs , spices, lemon juice, etc.
- Try cooking with herbs, spices, lemon juice, etc., instead of butter or margarine.
- Beware of confectionary foods, such as chocolate or pastry dishes and crisps. These are very high in fat instead consider swapping for a more balanced snack or restricting portion sizes.
<u>Explanation:</u> <u>FATS -</u>: Fats are usually derived from animals. Fats contain a larger proportion of fatty acids that are saturated. Fats at room temperature are solid.
<u> OILS -</u> Oils at room temperature are liquid. From plants, oils are extracted. A greater proportion of unsaturated fatty acids are found in oils.
In this question, the patient needs to be given exactly <span>1000ml </span>of a 15.0%. The content of the glucose should be:
weight= volume * density* concentration
1000ml * 1mg/ml *15%= 150mg.
The stock solution is 35%, then the amount needed in ml would be:
weight= volume * density* concentration
150mg= volume * 1mg/ml *35%
volume= 150/35%= 3000/7= 428.5ml