Answer:
High Amplitude
Explanation:
If the light from Star X is brighter than the same type of light from Star Y, you know that the light you see from Star X has a higher amplitude.
Denise wears an extremely bright safety yellow sweatshirt when she cycles to the gym after dark. The sweatshirt's brightness reflects the high amplitude of the light it reflects.
The brightness of Denise's sweatshirt while cycling after dark reflects the intensity of light it reflects. The color yellow is perceived when an object reflects red and green light and absorbs blue light. The brightness can also be enhanced by the reflection efficiency of the sweatshirt's material and its fluorescence properties.
Denise's extremely bright safety yellow sweatshirt when she cycles to the gym after dark, reflects the intensity of the light it reflects. The color of an object is determined by the wavelengths of light that the object reflects. A yellow object appears yellow because it reflects yellow light and absorbs other colors. Reflection of light is the fundamental concept behind the brightness of the sweatshirt.
The yellow sweatshirt absorbs blue light and reflects red and green light, which our eyes perceive as yellow. The intensity or brightness of the sweatshirt is a function of how much light it reflects back. Another important factor is the reflection efficiency of the sweatshirt's material. Some materials are better at reflecting light than others which can enhance brightness.
Also, the fluorescence property of some safety colors makes them emit more light than they receive which enhances their brightness, this is especially useful in low light conditions, such as cycling after dark.
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Answer:
Chemical engineers develop and design chemical manufacturing processes. They apply the principles of chemistry, biology, physics, and math to answer problems that involve the production of chemicals, fuel, drugs, food, and many products
Explanation:
Answer:
The main role of chemical engineers is to design and troubleshoot processes for the production of chemicals, fuels, foods, pharmaceuticals, and biologicals, just to name a few. They are most often employed by large-scale manufacturing plants to maximize productivity and product quality while minimizing costs
Explanation:
b. increased risk of lung cancer
c. change in senses
d. increased risk of cardiovascular disease
In what year were cigarette packages made to include 6 warning labels that mentioned the surgeon general
All of the following are long-term risks associated with exposure to secondhand smoke EXCEPT:
A. increased risk of respiratory illness
B. increased risk of lung cancer
C. change in senses
D. increased risk of cardiovascular disease
This is the Correct Answer.
Answer:
Unlike a greenhouse, the Earth does not have a layer of glass over it. Instead, molecules in our atmosphere called greenhouse gasses absorb the heat. Greenhouse gasses include water vapor, methane, ozone, nitrous oxide, and carbon dioxide.
I've been trying for a while to compare them and I'm just confused and don't know what to do
Answer:
To calculate the percentage of l-131 that has decayed up to the year 2021, we need to determine how many half-lives have passed from 1959 to 2021 and then calculate the remaining percentage.
The half-life of l-131 is 8.02 days.
First, calculate the number of half-lives that have passed from 1959 to 2021:
Number of years = 2021 - 1959 = 62 years
Since each year has approximately 365 days:
Number of days = 62 years * 365 days/year = 22,630 days
Now, calculate the number of half-lives:
Number of half-lives = Number of days / Half-life = 22,630 days / 8.02 days/half-life ≈ 2822 half-lives
Now, we know that each half-life reduces the remaining amount to half. So, to calculate the percentage remaining after 2822 half-lives:
Percentage remaining = (1/2)^2822 * 100 ≈ 0%
So, approximately 0% of the initial l-131 has decayed up to the year 2021.
b.) Find the density of the rock dropped into the graduated cylinder.
The volume of the rock dropped into the graduated cylinder is 10 ml. The density of the rock is 2.3 g/ml.
We first determine the volume of the rock dropped into the graduated cylinder. The initial volume of water in the cylinder is 20 ml, and after placing the rock, the total volume increases to 30 ml. Therefore, the volume of the rock is the total volume minus the initial volume of the water, which is 30 ml - 20 ml = 10 ml.
Next, we find the density of the rock. The formula for density is mass/volume. Given that the mass of the rock is 23 grams and the volume is 10 ml, the density of the rock would be mass/volume = 23 grams / 10 ml = 2.3 g/ml.
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