Answer:
carriers and so are called majority carriers. A few thermally generated electrons will also exist in the p side; these are termed minority carriers. On the n side the electrons are the majority carriers, while the holes are the minority carriers. Near the junction is a region having no free-charge…
Answer:
The majority charge carriers carry most of the electric charge or electric current in the semiconductor. Hence, majority charge carriers are mainly responsible for electric current flow in the semiconductor. The charge carriers that are present in small quantity are called minority
of a ball traveling 24 m in 0.6 seconds.
A baseball pitcher throws a fastball across home plate. Calculate the speed of a
baseball that takes 0.01 seconds to travel 0.30 meters across the entire length of home
plate.
Answer:
Below
Explanation:
To find the speed of an object you can use this formula
speed = displacement / elapsed time
For the first one
24 m / 0.6 seconds = 40 m/s
For the second one
0.3 m / 0.01 seconds = 30 m/s
Hope that helped
50 POINTS!
Motion Diagrams: Observe each motion and describe how to object is moving. If the motion diagrams show more than one kind, highlight and label each kind. Please thoroughly explain. Thank you so much!
No:1
The object is moving with constant or uniform acceleration and in average speed
No:-2The object is de accelerating
No:-3The object deaccelerated and came to rest so fast.
No:-4The object moves slowly first then accelerated.
No:-5The object accelerated at first so fast then move with constant acceleration then again accelerated .
astone is thrown upwards with an initial velocity of 25m/s at ange of 30 to the ground. work out the stones horizantal range?
Explanation:
[tex]R = \dfrac{v_0^2}{g}\sin{2\theta} = \dfrac{(25\:\text{m/s})^2}{9.8\:\text{m/s}^2}\sin{60°}[/tex]
[tex]\:\:\:\:=55.2\:\text{m}[/tex]
You shake a bottle of soda and take off the cap. If the soda shoots out of the
bottle with a velocity of 17 m/s, how high will it go?
A. 16.9 m
B. 14.7 m
C. 10.6 m
D. 12.2 m
Answer: B) 14.7 meters
============================================================
Explanation:
The bottle cap is a projectile, so we'll use the aptly named projectile formula
That formula (the meters version of it anyway) is approximately
h = -4.9t^2 + v*t + s
where,
t = elapsed time in secondsh = height at time tv = starting velocitys = starting heightWe'll assume that s = 0, though realistically it's probably going to be a bit larger than this (since the person is holding it above the ground). For the sake of simplicity, we'll stick with s = 0.
We're told that the initial velocity is 17 m/s, which means v = 17.
All of that means the formula mentioned earlier updates into this:
h = -4.9t^2 + 17t
If we were to graph this, or apply the -b/(2a) formula, then you should find that the vertex occurs when t = 1.73469 approximately.
Plug this into the equation we found to get...
h = -4.9t^2 + 17t
h = -4.9(1.73469)^2 + 17(1.73469)
h = 14.7449
h = 14.7
The bottle cap will reach a peak height of approximately 14.7 meters and does so at around the 1.7 second mark. The total flight time is approximately 2*1.7 = 3.4 seconds. This all assumes that the starting height and ending height are both 0 meters off the ground.
The soda will go as high as 14.7 meters. Therefore, option (B) is correct.
What is the conservation of energy principle?We can solve this problem using the conservation of energy principle, which states that the initial energy of a system is equal to the final energy. At the start, the soda in the bottle has some potential energy due to its position and kinetic energy due to its motion. When the soda shoots out of the bottle, it converts all of its initial energy to potential energy as it reaches its maximum height.
Using the conservation of energy, we can write:
Initial energy = Final energy
[tex]0.5 * m * v^2 = m * g * h[/tex]
where m is the mass of the soda, v is its velocity, g is the acceleration due to gravity ([tex]9.8 m/s^2[/tex]), and h is the height it reaches.
Solving for h, we get:
h = [tex](v^2)/(2g) = (17^2)/(29.8)[/tex]= 14.7 m
Therefore, the soda will go as high as 14.7 meters. Option B is correct.
Learn more about the conservation of energy principle, here:
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Answer:what is your Question
Explanation:
What is the average velocity of the particle from rest to 9 seconds?
OA.
1 meter/second
OB.
2 meters/second
OC.
3 meters/second
OD.
4 meters/second
Answer:
B 2m\s
Explanation:
18 m of displacement over the course of 9 seconds
18/9 = 2 m\s
Which feature of a heating curve indicates a change of state
Answer:
The diagonal or the inclined lines shows the changes in terms of temperature, and the horizontal lines shows the changing of phases.
Explanation:
hope it is useful
Bradd stands 6km west of a flagpole, and runs towards it with a speed of 9km/h. Pitt stands 5km east of the flagpole, and runs towards it with a speed of 8km/h. At what displacement from the flagpole are they when they meet?
Answer:
176 m west of the flagpole.
Explanation:
In exact and precise interpretation of the question the answer is 0 m as they would both crash into the pole when they got there and presumably stop having suffered broken noses and serious groin injuries.
However my GUESS as to the intent of the question is that the first to reach it will sidestep the flagpole slightly and continue on their current path until they meet and slap a high five as they pass one another.
In that case, they have 6 + 5 = 11 km to traverse at a closing rate of 9 + 8 = 17 km/hr.
They will meet in 11 km / 17 km/hr = 0.647 hrs
Bradd will have covered 9 km/hr(0.647 hr) = 5.823 km
meaning that they will be 6 - 5.823 = 0.176 km or 176 m west of the flagpole.
Pitt will have covered 8 km/hr(0.647 hr) = 5.176 km
meaning they will be 5 - 5.176 = - 0.176 km east which equals 0.176 km west of the flagpole
Help, I really need to solve this right away!!
Answer:
can you like zoom in i cant see that much.
Explanation:
(a) A pendulum that has a period of 3.00000 s and that is located where the acceleration due to gravity is 9.79m/s2 is moved to a location where the acceleration due to gravity is 9.82m/s2. What is its new period
I assume this is the motion of the simple pendulum
T = 2π × [tex]\sqrt{\frac{L}{g } }[/tex]
=> [tex]\frac{T1}{T2 }[/tex] = [tex]\sqrt{\frac{g2}{g1} }[/tex]
Given T1= 3s g1= 9.79 g2= 9.82
=> T2 = 3.00459 s
The type of force that will not cause a change in the speed of an object.
Explanation:
Balanced forces will cause no change in the speed of an object.
câu 1 vẽ sơ đồ trình bày nguyên lý làm việc các thông số và đặc điểm của mạch chỉnh lưu cầu 1 pha
câu 2 vẽ sơ đồ trình bày nguyên lý làm việc của bộ nghịch lưu áp 1 pha
Answer:gang gang father gang
Explanation:idek cuh
Which two particles are present in the nucleus of an atom? Electrons and neutrons Electrons and molecules 1 TH O Protons and neutrons O Protons and electrons
Answer:
Protons and neutrons
Explanation:
7 (a) Use the kinetic particle theory of matter to explain why energy is needed to melt a solid, at its melting point, to form a liquid. - [2] (b) A student puts a drop of coloured ink into water. The ink slowly spreads throughout the water. Use the kinetic particle theory of matter to explain this observation.
Answer:
7 (a).
» At melting point, temperature is constant and there is increase in vibràtory energy of solid molecules increases. In that case, the mobílity or lovomotive degree of the solid molecules because the intermolecular forces between them have became weaker. Hence molecules become further apart from each other hence a liquid formed.
(b).
The molecules of the ink get bonded to the water molecules. Since water molecules have a high degree of mobílity or locomotion in different directions, the ink molecules also tend to move in different directions hence water turns colored.
Explanation:
[tex].[/tex]
The temperature remains constant and solid molecular vibrantion energy rises near the melting point. In that circumstance, the mobility or locomotive degree of the solid molecules has decreased as a result of the weakening of the intermolecular interactions. As a result of the molecules growing further apart, a liquid was created.
What is thermal energy?It can be defined as the form of the energy in which heat is transferred from one body to another body due to their molecular movements, thermal energy is also known as heat energy.
The mobility or locomotive degree of the solid molecules has decreased as a result of the weakening of the intermolecular interactions. As a result of the molecules growing further apart, a liquid was created.
The ink molecules form bonds with the water droplets. Liquid changes color because of the ink molecules' propensity to migrate in distinct ways due to the great degree of mobility or motility that water droplets have.
Learn more about thermal energy from here,
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Why is the level of glycerin initially decreases when heated ?
What is the velocity of a car that traveled a total of 75 kilometers north in 1.5 hours?
What are you solving for?
What’s the equation?
Show work!
Help pleaseee!
Answer:
50km/hr is the velocity of a car that traveled a total of 75 km North in 1.5 hours.
A lot of energy is not stored in biomass, but is used for biological processes instead. Which process
releases thermal energy?
Explanation:
Respiration releases energy - it is an exothermic process. This means it releases heat energy.
The process which releases thermal energy is respiration.
What is thermal energy?The energy which increase the temperature is called the thermal energy.
Biomass energy is created but can not be stored. Same way, the respiration process which releases heat in form of air from nose or mouth. This process is exothermic.
Thus, Respiration releases thermal energy.
Learn more about thermal energy.
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An electromagnetic wave from space is detected with a frequency of 4.4 x 109 Hz. What is the wavelength of this wave?
Explanation:
[tex]\lambda = \dfrac{c}{\nu} = \dfrac{3×10^8\:\text{m/s}}{4.4×10^9\:\text{Hz}} = 0.068\:\text{m}[/tex]
Two falling inflated balls of different masses
land at the same time.
Answer:
-The air resistance statement goes with the pieces of paper statements
-The force of gravity statement goes with the dog statements
-The acceleration due to gravity goes with the two inflated balls
Water is flowing in a pipe with a varying cross-sectional area, and at all points the water completely fills the pipe. At point 1 the cross-sectional area of the pipe is 0.070 m^2, and the magnitude of the fluid velocity is 3.50 m/s.
Required:
a. What is the fluid speed at point in the pipe where the cross-sectional area is 0.105m^2?
b. What is the fluid speed at point in the pipe where the cross-sectional area is 0.047m^2?
c. Calculate the volume of water discharged from the open end of the pipe in 1.00hour.
Answer:
b
Explanation:
what is a molecule??
Answer:
molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance
Explanation:
Here are examples of common molecules:
H2O (water)
N2 (nitrogen)
O3 (ozone)
CaO (calcium oxide)
C6H12O6 (glucose, a type of sugar)
NaCl (table salt)
Explanation:
molecule, a group of two or more atoms that form the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of that substance
This is a model that describes how much energy is transferred from one trophic
level to the next.
energy pyramid
food web
food chain
trophic level
what is suvat in physics ?
LESSON-THE PLANT Fairy
1) Fill in the blanks using given options.
( Grass, tree, Mehndi, shapes and colour)
a) Plants with thick or thin trunk are called as
b) Leaves of different plants have different
c) Didi was sitting on the
d) is a bush.
K-12 After homework
Which of the following statements is NOT true?
All materials eventually stop bouncing.
Some balls will bounce longer than others depending on the material they are made of.
The lower the drop height of a ball, the higher the ball will bounce.
The higher the drop height of a ball, the higher the ball will bounce
A sound that is perceived as twice as loud requires
Select one:
O a. four times the intensity,
O b. twice the intensity.
C
ten times the intensity
d. one hundred times the intensity.
Answer:
C.ten times the intensity.
if you think that Horoscopes are Science or Pseudo-Science and give your reason
Answer:
Pseudo science
Explanation:
Astrology has not demonstrated its effectiveness in controlled studies and has no scientific validity, and is thus regarded as pseudoscience.
If Leslie has a hang time of 0.2 seconds, what distance did she jump?
Answer:
um.......I don't know soory
intermolecular forces in liquid and solid
the IMF in liquids are weaker due to how far the molecules are apart from each other, whereas the IMF in solids are stronger due to how tightly packed the molecules are together.
The most suitable unit for expressing nuclear radius is
A) micro B) nanometre
C) fermi D) angstrom
Answer:
Fermi is used to express nuclear radius
Answer:
the most suitable unit for expressing nuclear radius is Fermi.
