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Andrews [41]
3 years ago
5

In cathode-ray tubes, the cathode ray is emitted from the negative electrode, which is called the ________________. 2. the small

est unit of an element that can exist either alone or in molecules containing the same or different elements is the ________________.
Chemistry
1 answer:
Juli2301 [7.4K]3 years ago
4 0
<span>1.)Cathode 2.)Atom For the first part, the cathode is the basically like the negative side or terminal. On batteries (cylindrical cells like the ones you get out of the store for your TV remotes or wireless computer mouse) usually have the cathode on the bottom. The atom is known as the smallest physical form of any object (other than protons, neutrons, and electrons).</span>
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Assuming that the F−18 can be transported at 59.0 miles/hour, how close must the hospital be to the cyclotron if 68% of the F−18
tekilochka [14]

Answer:

60.12 miles

Explanation:

Using the calculation formula shown below:

t_{1/2} =\frac{t}{[tex]log_{2}\frac{N_{o} }{N_{t} } }[/tex]

where:

t_{1/2} is the half life, N_{o} is the original amount of F-18, and N_{t} is the remaining amount of F-18 at time t.

Generally, F-18 has an half life of 1.83 hours.

Therefore:

t = 1.83*[tex]log_{2}\frac{100}{68} = 1.02 hours[/tex]

Therefore using a speed of 59 miles/hour, the closeness of the hospital is:

distance = speed*time = 59*1.02 = 60.12 miles

6 0
3 years ago
What is the ABO Identification System &amp; The Rh Factor?
Nutka1998 [239]
ABO identification system is the system of determining the blood type of the Human being by checking the presence of Antigens "A" & "B" on the surface of their RBCs. If A is present, then it is A Blood group, if B, then it is B blood group, if both, then AB and if neither then it is called as O blood group.

Rh Factor is the type by which we classify individuals into two groups - Rh +ve with Rh factor on their surface and Rh - ve, which lacks of it

Hope this helps!
7 0
3 years ago
Read 2 more answers
The mass of an object is 32g and its density is 17g /mL. what is its volume
guajiro [1.7K]

Explanation:

here,

Mass (m)= 32 g =0.32 kg

Density(d)= 17 g/ml

volume (v)=?

we know that,

d=m/v

17=0.32/v

v= 0.32/17

v=0.018<u> </u>

3 0
3 years ago
Read 2 more answers
A.Which facilities contribute the most to recycling and the least to recycling based on the pie chart graphic?
nirvana33 [79]

Answer:

a) To determine the facilities that contribute the most to recycling check the pie chart and select the facility with the largest portion while to determine the facilities that contribute the least to recycling check the pie chart and select the facility with the smallest portion

b) Energy is saved because the products which are recycled usually require less energy to turn them into usable materials

c) It saves energy through recycling. It helps sustains the environment. It decrease the emission of green house gases

Explanation:

The question is not complete

a) Pie chart is the graphical representation of information in which the information is represented in a circle. The circle is divided into segments and the portion with the largest segment has the highest percentage.

To determine the facilities that contribute the most to recycling check the pie chart and select the facility with the largest portion while to determine the facilities that contribute the least to recycling check the pie chart and select the facility with the smallest portion

b) Extraction and processing of raw resources to make end products requires a lot of energy.  With recycling energy is saved because the products which are recycled usually require less energy to turn them into usable materials

c) It saves energy through recycling. It helps sustains the environment. It decrease the emission of green house gases.

6 0
3 years ago
When an acid is dissolved in water, how does it change the solution's ph?
iren2701 [21]

When an acid is dissolved in water, by releasing protons into the solution, it lowers the pH.

What is pH?

The letters pH stand for the potential of hydrogen since pH is essentially a measurement of the number of hydrogen ions (i.e. protons) in a substance. The pH scale was created in 1923 by scientist Peter Lauritz Srensen. (1868-1969).

The pH of a solution is a key marker of its chemical makeup. The pH can have an impact on the biological processes that take place, the behavior of bacteria, and the behavior of chemicals.

To learn more click the given link.

brainly.com/question/22390063

#SPJ4

5 0
2 years ago
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