Answer:
Electrification induction
Answer:
Conduction
Convection
radiation
Explanation:
The Earth orbits the Sun at a speed of 30 km/s. At that speed it completes one path around the Sun every year. Of course, as that happens we are heading toward a different place in space constantly, always accelerating toward the Sun to stay on the circular path. Suppose at a paritcular instant we are headed in the direction of a distant star and we measure the speed of the light from that star as it arrives on Earth. In the vacuum of space we would measurea. 299,792,458 m/sb. 299,792,428 m/sc. 299,792,488 m/sd. 0 m/s
Answer:
a. 299,792,458 m/s
Explanation:
Since the speed of light in a vacuum is invariant and has the value of 299,792,458 m/s, we would measure this value of 299,792,458 m/s for the speed of light from the star as it arrives on Earth.
The tuner begins by muting the right and center A4 strings. He then strikes the A4 key, and tunes the left A4 string to be exactly the same frequency as a 440 Hz tuning fork. Next, he unmutes the center string, and plays the A4 key. Now he hears both the left and center A4 strings vibrating at the same time. He can hear that the center string is slightly flat, and he can hear beats between the two strings with a beat frequency of 0.40 Hz. What is the frequency of the center string
Answer:
f= 440.4 Hz or f= 439.6 Hz
Explanation:
In this exercise we have two waves with slightly different frequencies, the A4 chord with f = 440 Hz and the beating with the central chord fbeats = 0.40 Hz, let's use the relation
f_{beat} = | f - f₀ |
f = fo + - f _{beat}
f = 440 + 0.4 = 440.4 Hz
f = 440-0.4 = 439.6 Hz
1-Autotrophic plants are also called
2-The ____ guards the opening and closing of stomata
3-_______ is an example of a nitrogen fixing bacterium
4______ plants has the biggest and the heaviest flower
5-a tissue called _____bcarries water and minerals from the root to the root to the leaves of plants
Answer:
1. Producers
2. cell (guards)
3. Rhizobium
4. Rafflesia Arnoldii
5. Xylem
After rolling halfway down an incline a marble's kinetic energy is
A. impossible to determine
B. the same as its potential energy
C. greater than its potential energy
D. less than its potential energy
If a 400-mm diameter pipe with a pipe roughness coefficient of 100 flows full of pressurized water with a head loss of 0.4 ft per 1,000 ft of pipeline, what is the flow rate? Use the Hazen-Williams method
Answer:
Q = 913.9 gpm
Explanation:
The Hazen Williams equation can be written as follows:
[tex]P = \frac{4.52\ Q^{1.85}}{C^{1.85}d^{4.87}}[/tex]
where,
P = Friction Loss per foot of pipe = [tex]\frac{0.4}{1000\ ft}[/tex] = 4 x 10⁻⁴
Q = Flow Rate in gallon/min (gpm) = ?
d = pipe diameter in inches = (400 mm)(0.0393701 in/1 mm) = 15.75 in
C = roughness coefficient = 100
Therefore,
[tex]4\ x \ 10^{-4} = \frac{4.52\ Q^{1.85}}{(100)^{1.85}(15.75)^{4.87}}\\\\Q^{1.85} = \frac{4\ x \ 10^{-4}}{1.33\ x\ 10^{-9}} \\\\Q = (300384.75)^\frac{1}{1.85}[/tex]
Q = 913.9 gpm
(121 m/s, or 43
4. The pilot of an airplane, which has been diving at a speed of
540 km/h, pulls out of the dive at constant speed.
(a) What is the minimum radius of the plane's circular path in
order that the acceleration of the pilot at the lowest point
will not exceed 7 g?
(b) What force is applied on an 80 kg pilot by the plane seat at
the lowest point of the pull-out? (328 m, 6.3 X 10N)
Answer:
(a) r = 328 m
(b) F = 6271.8 N
Explanation:
speed, v = 540 km/h = 150 m/s
Acceleration, a = 7 g
(a) Let the radius is r.
[tex]a =\frac{v^{2}}{r}\\7\times 9.8 = \frac{150\times 150}{r}\\r = 328 m[/tex]
(b) The force on 80 kg pilot at the lowest point is
[tex]F =m \times g + m\frac{v^{2}}{r}\\F = 80\times9.8 +80\times \frac{150\times 150}{328}\\\\F =784 + 5487.8 = 6271.8 N[/tex]
Compare two vectors that are of the same magnitude but are in opposite direction. Write 4 points to do this.
Answer:
jsuxgbqnqozygxnwkisgx
Explanation:
jducgsjqkzhxbbekxochdbjsixgwjdk
Two-fifths of a number is 23.2, find
the number.
A. 116.0
B. 58.0
C. 46.4
D. 29.0
E. 14.5
11
Considering the definition of an equation and the way to solve it, the correct answer is option B.: the number is 58.
Definition of equationAn equation is an algebraic equality in which letters (unknowns) appear with unknown value in addition to certain known data.
An equation has:
The members, which are each of the expressions that appear on both sides of the equal sign.The terms, which are the addends that form the members of an equation.The solution of an equation is to find the value of the unknown or unknowns that verify the equality. To solve an equation, keep in mind:
When a value that is adding, when passing to the other member of the equation, it will subtract.If a value you are subtracting goes to the other side of the equation by adding.When a value you are dividing goes to another side of the equation, it will multiply whatever is on the other side.If a value is multiplying it passes to the other side of the equation, it will pass by dividing everything on the other side.This caseBeing "x" the number you want to find and knowing that two-fifths of a number is 23.2, the equation in this case is:
2/5x= 23.2
Solving:
x= 23.2 ÷ 2/5
x= 58
Finally, the number is 58.
Learn more about equations:
brainly.com/question/20796784
brainly.com/question/565552
brainly.com/question/4983716
#SPJ1
4. In the display window of the toy store at the local mall, a battery-powered plane is suspended from a string and flying in a horizontal circle. The 631 gram plane makes a complete circle every 2.15 seconds. The radius of the circle is 0.950 m. Determine the velocity, angular velocity, acceleration, and net force acting upon the plane.
Answer:
The solution is given below
Explanation:
The computation is shown below:
Given that
Mass of plane, m is 631 g = 0.631 Kg
The Time period for one circle is 2.15 s
The Radius of circle = 0.95 m
Now the velocity of the plane, v = rω
where,
angular velocity, ω = (θ ÷ t)
For one complete circle, θ = 2π
and Time period T is provided = 2.15 s
Thus, ω = 2π ÷ T = 2π ÷ 2.15
So, velocity, v = rω
= r × ( 2π ÷ 2.15 )
= 0.95 × (2π ÷2.15)
= 2.776 m/s
The Acceleration of the plane, a = rω^2
= 0.95 × (2π ÷ 2.15)^2
= 8.114 m/s^2
The Net force acting upon the plane, F = Centripetal force i.e.
= mv2 ÷ r
F = mv2 / r
= (0.631 × 2.7762) ÷ 0.95
= 5.118 N
How much energy is needed to melt 150 g of ice at 0°C to water? (1)(Lf =3.34˟ 10⁵ J/Kg)
50 100 000J
50.1J
50 100J
501000 J
5 min
Answer:
5.01×10⁴ J.
Explanation:
Applying,
q = Cm....................... Equation 1
Where q = amount of heat needed to melt the ice, m = mass of the ice, C = specific latent heat of ice.
From the question,
Given: m = 150 g = (150/1000) kg = 0.15 kg, C = 3.34×10⁵ J/kg
Substitute these values into equation 1
q = (0.15×3.34×10⁵)
q = 0.501×10⁵ J
q = 5.01×10⁴ J.
Explain your answer. What parts of your hypothesis were strong correct? What parts were weak?
Use the data from the table and the Punnett Square in your explanation.
This question is from quizlet.
So better check this question!
Do all the cells look the same in a filament? If there is a difference, describe
how they are different.
Answer:
All cells in filamentous algae look the same except for the spores. Explanation:
1. Amplitude is the maximum distance that the particles in a medium _____
2. A Wavelenght of a wave is the distance from ____
3. As the frequency of a wave increases, the wavelengths ___
4. The frequency of a wave is the number of ___
5. Changing the frequency of waves also changes ___
Answer:T or F: Mechanical waves need a medium through which to transport energy. ... T or F: Wave A has a greater frequency than wave B, but the amplitude of the two waves is the ... past the raft increases, you also find that the distance between each crest ___. ... For a given wave, the frequency doubles, the wavelength is ____.
Explanation:
if a car travels 125 miles in 2.5 hours, what was the cars average speed over the 2.5 hours?
Answer:
50 miles per hour
Explanation:
125/2.5 which equals to 50
Answer:
50 miles per hour
Explanation:
125 divided by 2.5 = 50
12. 2007: The figure below show two identical trollbys with loads A and B. The
loads are identical in shape and size.
D
Given that the density of A is greater than that of B, explain why the
trolley in figure 3 (in) is more stable
Answer:
you need to provide a figure that came with the problem.
1The specific heat of substance (X) is greater than that for substance (Y). If equal amounts of heat are added to both these substances, the one reaching the higher temperature(assuming no phase change occurs for either) will be:
1. substance X
2. substance Y
3.there will be no difference in the final temperature.
4.both X and Y
Answer:
Substance Y
Explanation:
A substance with a high specific heat capacity can absorb a large quantity of heat before it will raise in temperature. A substance with a low specific heat requires relatively little heat to raise its temperature. Thus, if the same amount of energy was added to both substances, substance Y will reach the higher temperature, while substance X would require more energy to reach high temperatures.
Answer:
2. substance Y
Explanation:
specific heat is how much heat is needed to warm up something. Y has smaller specific heat means it warm up more w/ same amount of heat.
find the total electric field along the line of two of the two charges shown in figure at the point midway between them
WILL GIVE BRAINLIEST
Answer:
2.5N
Explanation:
Given :
Mass = 0.5kg
Acceleration = 5 m/s²
For the glass to accelerate, a force, F = ma must act on it in the right direction :
F = ma
F = 0.5kg * 5m/s
F = 2.5 kgm/s
F = 2.5 N
The net force required such that the glass accelerates 5m/s² to the right is 2.5N
what is a transformer
Answer:
An electrical box that regulates all the electricity for an area.
A bicyclist at the top of a hit begins to coast without pedaling. The bicycle speeds up as it descends to the bottom of the hill and then slows down as it continues
up a second, where it stops. Which of these sequences best describes the energy change of the bicycle from the top of the hill until it stops?
A.potential - kinetic-kinetic
B.Kinetic -potential -potential
C.Kinetic -potential -Kinetic
D.potent - Kinetic -potential
A 200kg car is driving at 20m/s down the road when he sees a red light. He slows to a stop.
The car's initial momentum is ___kg m/s
The car's final momentum is ___kg m/s
The car's impulse is
___kg m/s
Answer:
Initial Momentum - 4000 kg*m/s
Final Momentum - 0 kg*m/s
Impulse: -4000 kg*m/s
Explanation:
The equation for momentum is P = mv
Initial Momentum
200kg * 20m/s = 4000 kg*m/s
Final Momentum
200kg * 0m/s = 0kg*m/s
Impulse = ΔP
Pfinal - Pintial = Impulse
0-4000 = -4000 kg*m/s
Two band members are marching toward each other beginning from opposite end zone goal lines (100 yards apart). One band member is playing a picolo and marching at 5 ft/s and the other is playing a sousaphone and marching at 1 ft/s. At what yard line do they meet?
Answer:
17
Explanation:
answer is 16.6666 which is equal to 17
A physics student was studying falling bodies and decided to drop a water balloon from an outdoor stairwell to measure its speed. If the balloon was dropped a distance of 6 meters and it only took 1.1 seconds to fall, how fast was the balloon traveling on average? A. 0.2 m/s B. 6.6 m/s C. 5.5 m/s D. 66 m/s
WILL NAME BRAINLIEST
Answer:
C. 5.5 m/s
Explanation:
How fast the balloon travels is determined from the velocity or v
The formula is v = s/t or velocity equals distance divided by time
So, v = 6 meters divided by 1.1 seconds = 5.5 meters per second
Answer:
C. 5.5 m/s
Explanation:
How fast the balloon travels is determined from the velocity or v
The formula is v = s/t or velocity equals distance divided by time
So, v = 6 meters divided by 1.1 seconds = 5.5 meters per second
Question 2 of 25
An electromagnetic wave has a frequency of 1.0 x 105 Hz. What is the
wavelength of the wave? Use the equation 1 = and 3.0 x 108 m/s for the
speed of light.
A. 3.0 1013 m
B. 3.3 x 1012 m
C. 3.3 x 10-4 m
O D. 3.0 x 103 m
Answer:
D
the wavelength is the speed divide by the frequency
In the Zeeman effect, the energy levels of hydrogen are split by a magnetic field. Each state with a different value of mlml has a different energy. The differences in energy between adjacent values of mlml are all equal. The Zeeman effect is observed as a splitting in the spectral lines of hydrogen in the presence of a magnetic field. What is the greatest number of lines that a single spectral line can be split into by a magnetic field
Answer:
the Zeeman effect without spin is three lines
Explanation:
The Zeeman effect is the result of the interaction of the magnetic field with the orbital angular momentum of the electrons, if we do not take the spin into account it is called the Normal Zeeman effect.
Therefore we only take into account the orbital moments (m_l) of the transition, from the selection rules of the refreshed harmonics, only the transition with
[tex]\Delta m_l[/tex] = 0, ± 1
ΔE [tex]\DeltaE = \mu_B \ \Delta m_l \ B[/tex]
Let's analyze for the case of the Hydrogen atom
For a transition between levels n = 1 and n = 2 the values of m_l are n_f = 1 m_l = 0 and for n₀ = 2 m_l = 0, 1
so we only have two lines.
For transition n_f = 2 and n₀ = 3
n_f = 2 m_l = 0, 1
n₀ = 3 m_l = -1, 0, 1
There are only two lines plus the central line, so there are three spectral lines
for n_f = 3 and n_o = 4
n_f = 3 ml = -1, 0, 1
n₀= 4 ml = -2, -1, 0, 1, 2
Only transitions with Δm_l = ±1 are allowed, so there are only two transitions plus the central transition (Δm_l = 0), so there are only 3 spectral lines.
In summary, due to the selection rule of spherical harmonics, the greatest number of lines in the Zeeman effect without spin is three lines.
help its due in 10 minutes lol
Who serves as the presiding officer of the Senate?
Who serves as the presiding officer of the Senate?
[tex]{ \bf{ \underbrace{Answer :}}}[/tex]
The [tex]\sf\purple{Vice\:President}[/tex] of the United States serves as the presiding officer of the Senate.
At present, [tex]\sf\red{Kamala\:Harris}[/tex] is the president of the Senate.
[tex]\bold{ \green{ \star{ \orange{Hope\:it\:helps.}}}}⋆[/tex]
How far would a horse that rides at 9.8 m/s travel in 9.8 minutes?
Answer:
distance = 96.04 m
Explanation:
velocity is distance over time when velocity is multiplied by time, the time in the numberator is canceled by the time in the denomiator leaving only distance.
distance = velocity * time
distance = 9.8[m/s] * 9.8[s]
distance = 9.8 * 9.8 [m]
Rays of light radiating from Sun are
radiations
Explanation:
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat.
Answer:
All of the energy from the Sun that reaches the Earth arrives as solar radiation, part of a large collection of energy called the electromagnetic radiation spectrum. Solar radiation includes visible light, ultraviolet light, infrared, radio waves, X-rays, and gamma rays. Radiation is one way to transfer heat
63. Which of the following types of validity is estab-
‘lished by demonstrating that there is a correlation
between scores on a test and later academic
performance?
(A) Content
(B) Predictive
(C) Face
(D) Concurrent
(E) Test-retest
Help I beg someone please help please
Answer:
Content
Explanation:
The type of validity that is established by demonstrating a correlation between scores on a test and later academic performance is known as CONTENT VALIDITY
The above statement is true because Content validity is a form of validity testing used to assess whether the outcome of a test is a precise measure of the fundamental aspect or domain of the construct.
Hence, to provide a credible result, content validity ensures it covers all suitable parts of the content or topic it attempts to measure.