A nucleus is an organelle found in the eukaryotic cells. Inside it's fully enclosed nuclear membrane, it contains the minority of the cell's genetic material. This material would be called DNA molecules.
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1.Outline the results of the Cathode ray tube?
Answer:
this showed that the cathode rays traveled in straight line
How much heat is required to boil 78.5 gg of water at its boiling point?
Answer:
206 kj of heat is required to boil 78.5 kg of water at its boiling point
Silver nitrate and magnesium chloride react according to the following equation:
2AgNO3(aq) + MgCl2(aq) — 2AgCl(s) + Mg(NO3)2(aq)
What volume (in ml) of 0.247M MgCl2(aq) is required to react with 63.2 mL of 0.192M AgNO3(aq)?
Answer:
V=24,3mL
Explanation:
1)n(AgNO3)=Cm*V=0.063l*0.192M=0.012
2)n(AgNO3)/2=n(MgCl2) => MgCl2=0.012/2=0.006
3)V(MgCl2)=n/Cm=0.006/0.247=0.0243L=24,3ml
The_______ and _____ are the main systems that move fluid throughout the body.
Answer:
circulatory system, lymphatic system
Explanation:
I just did the assigment and got it right.
Carbon-14 has a half-life of 5715 years. It is used to determine the age of
ancient objects. If a sample today contains 0.060 mg of carbon-14, how much
carbon-14 will be present after 28,575?
The sample of Carbon-14 after 28,575 years=0.001875 mg
Further explanationGeneral formulas used in decay:
[tex]\large{\boxed{\bold{N_t=N_0(\dfrac{1}{2})^{T/t\frac{1}{2} }}}[/tex]
T = duration of decay
t 1/2 = half-life
N₀ = the number of initial radioactive atoms
Nt = the number of radioactive atoms left after decaying during T time
Carbon-14 has a half-life of 5715 years, so t1/2=5715 years
A sample today contains 0.060 mg of carbon-14, so No=0.06 mg, then :
[tex]\tt Nt=0.06(\dfrac{1}{2})^{28575/5715}\\\\Nt=0.06(\dfrac{1}{2})^5\\\\Nt=0.001875~mg[/tex]
Which of the following is a simple definition of reduction?
A. the loss of electrons
B. the gain of electrons
C. an agent that oxidizes something
D. an agent that reduces something
The answer is B on Edg 2020
Answer:
B. the gain of electrons
Explanation:
An easy way to remember this concept is the pneumonic OIL RIG:
Oxidation is Loss (of electrons)
Reduction is Gain (of electrons)
If 4.25 grams of copper were plated out in the reaction:
3Cu2+ + 2Al ---> 3Cu + 2Al3+
What mass of aluminum would have dissolved?
Please show all work!
Answer:
gravwfewtu
Explanation:
ushifelllf
What percentage of Canada's 2005 population was between the ages of 30 and 44?
Two ways water and ice are the same
Answer:
1- water is ice
2- ice is water
Explanation:
1- the water is just froze
2- the ice is just solid water
pls help 40 points!! Augie created this chart about the two kinds of waves.
A 2-column table with 3 rows titled 2 Kinds of Waves. The first column labeled Title 1 has entries the transfer energy is perpendicular to the direction of the wave motion, particles move up and down, particles move only slightly. The second column labeled Title 2 has entries the transfer direction is parallel to the direction of wave motion, particles move side to side, particles move only slightly.
Which best labels the chart?
Title 1 is “Longitudinal Waves,” and Title 2 is “Transverse Waves.”
Title 1 is “Transverse Waves,” and T
its b
i did the quiz and got it right it is b
Answer:
b
Explanation:
took test on edge
Match the part of the wave to its description.
Crest
Wavelength
Trough
Amplitude
These are the correct answer your welcome ;)
Answer:
sgsgueiehéyegeysuegeteue2
Answer:
Explanation:
The answers you put are correct...
crest- A crest point on a wave is the maximum value of upward displacement within a cycle. A crest is a point on a surface wave where the displacement of the medium is at a maximum.
wavelength- In physics, the wavelength is the spatial period of a periodic wave the distance over which the wave's shape repeats. (how long the wave is)
trough- A trough is the opposite of a crest, so the minimum or lowest point in a cycle.
amplitude- Amplitude, in physics, the maximum displacement or distance moved by a point on a vibrating body or wave measured from its equilibrium position. It is equal to one-half the length of the vibration path. ... Waves are generated by vibrating sources, their amplitude being proportional to the amplitude of the source.
Hope this helps! Have a great day!! :D