When summer changes to fall, what seasonal changes do plants experience? (IGNORE HIGHLIGHTED ANSWER)
Answers
Answer:
C
Explanation:
There is a decrease in temperature and daylight and plants produce less food.
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Related Questions
The effort needed when a simple machine is used is best described by which of these statements?
Answers
Answer:
effort effort effort effort effort effort
Question 25 of 25
How do changes in light wavelengths support the most widely accepted
ideas about the universe?
O A. Galaxies are moving away from Earth, as shown by the shift of
their light toward the red end of the spectrum.
B. Galaxies are moving toward Earth, as shown by the shift of their
light toward the blue end of the spectrum.
OC. Galaxies are moving away from Earth, as shown by the shift of
their light toward the blue end of the spectrum.
OD. Galaxies are moving toward Earth, as shown by the shift of their
light toward the red end of the spectrum.
Answers
The changes in light wavelengths support the most widely accepted
ideas about the universe is Light from other galaxies shifts toward the red end of the spectrum, which shows that the galaxies are moving away from Earth. The correct option is A.
Universe is the whole cosmic system of matter and energy. The Earth, the Sun, the Moon, the planets, the stars along with the ,dust , gases, rocks forms the universe.
As the universe is expanding more and more, the galaxies are shifting their way apart.
According to Doppler's Effect, wavelength and frequency of a wave will changes with respect to an observer If the observer moves closer, the spectrum will shift towards blue end and if it moves away, the spectrum will shift towards the red end.
When spectrums of distant galaxies were observed to be shifting towards red light, also known as Red shifting. This shows that the Big Bang theory is true that universe is expanding.
Thus, the correct option is A.
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Let f(x) = -log(4x) + 5.
What is the average rate of change of f(x) from 3 to 8?
Round your answer to the nearest hundredth.
0-11.74
-0.09
0
0.09
O 11.74
Answers
Answer:
0.09
Explanation:
I took the test and the correct answer is actually
-0.09
Lifting a heavy piano in the air 30
feet to a second story room would
be the easiest by doing which of
the following actions?
A. jumping up 30 feet with the piano on your
back
B. carrying the piano up a ladder that is very
steep
C. carrying the piano up a long staircase with
many steps spread apart
Answers
IMA = inclined mechanical advantage = distance (L) : height (h)
the longer the track / distance the easier we lift it
C. carrying the piano up a long staircase with many steps spread apart
A nonconducting sphere of radius r0 carries a total charge q distributed uniformly throughout its volume
Answers
The electric field for the nonconducting sphere of radius r₀ carries a total charge q distributed uniformly throughout its volume will be,[tex]E=kQ\frac{r}{r_0^3}[/tex].
What is an electric field?It is a physical field occupied by a charged particle on another particle in its surrounding.
For a non-conducting sphere, the charge density is;
[tex]\rm \rho = \frac{q}{V} \\\\ \rho = \frac{Q}{\frac{4}{3}\pi r^3 } \\\\ \rho = \frac{3Q}{4 \pi r_0^3} \\\\[/tex]
The electric field is found as;
[tex]\rm E=K \frac{\rho V}{r^2} \\\\ E= k \frac{3Q \times 4 \pi r^3}{4 \pi r_0^3 \times 3r^2} \\\\ E=kQ\frac{r}{r_0^3}[/tex]
Hence, the electric field for the nonconducting sphere of radius r₀ carries a total charge q distributed uniformly throughout its volume will be,[tex]E=kQ\frac{r}{r_0^3}[/tex].
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How is area different from volume
Answers
Answer:
Area is two dimensional like cm^2 volume is 3 dimensional like cm^3
Explanation:
Answer:
an area is a two dimensional whereas a volume is a three dimensional
Explanation:
An area is a plain figure while a volume is a solid figure.The area is measured in square units and the volume in cubic units.The area covers the outer space and the volume the inner capacity
What type canola oil biome is
Answers
Answer:
canola oil biome is a chemically refined oil that is used for cooking and skin
Explanation:
A wave created by shaking a rope up and down is called a.
Answers
(According to me and certified experts) Transverse wave.
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QUESTION 1
What is the voltage (V) of a small appliance if the
current (I) is 12 A and the resistance (R) is 10 !?
Answer:
QUESTION 2
What is the resistance (R) if the current (I) is 15 A and
the voltage (V) is 230 V?
Answer:
QUESTION 3
Find the current (I) if the voltage (V) is 230 V and the
resistance (R) is 20 !.
Answer:
QUESTION 4
Find the voltage (V) if the resistance (R) is 25 ! and the
current (I) is 5 A.
Answer:
QUESTION 5
What is the resistance (R) if the current (I) is 25 A and
the voltage (V) is 230 V?
Answer:
QUESTION 6
Find the current (I) if the voltage (V) is 230 V and the
resistance (R) is 50 !.
Answer:
QUESTION 7
Find the voltage (V) if the resistance (R) is 35 ! and the
current (I) is 4 A.
Answer:
QUESTION 8
What is the resistance (R) if the current (I) is 15 A and
the voltage (V) is 24 V?
Answers
Answer:
check the attachments for the solution
which of these is NOT an example of a lever?
a. shovel
b. pushup
c. ramp
d. seesaw
Answers
Answer:
c
Explanation:
Out of the given options, shovel, pushup, and seesaw are all examples of levers. Hence, the one that is not an example is :
rampA 30 kg falling object hits the ground at a speed of 11.5 m/s. If the kinetic energy of the object when it hits the ground is equal to the gravitational potential energy it had before it was dropped, at what height was it dropped from?
Answers
Answer:
6.74 m
Explanation:
PE = KE
mgh = 1/2 mv^2
30 ( 9.81) h = 1/2 (30)(11.5)^2
h = 6.74 m
Please help me with theses questions ASAP.
Select the correct answer.
1. Which feature indicates that Mars resides in the inner region of the solar system?
A. It is the coldest planet in the solar system.
B. It has a rocky surface that one could firmly stand on.
C. It contains a faint system of 13 rings.
D. It holds more than 76 satellites.
2. Which two pieces of data indicate that Jupiter resides in the outer region of the solar system?
A. It is primarily composed of hydrogen and helium.
B. It contains one natural satellite, the Moon.
C. It is the hottest planet in the solar system.
D. Its surface gases form into colorful bands.
E. It has a metal surface upon which one can stand.
3.Which statement accurately describes a similarity between Earth and Venus?
A. Both planets have an atmosphere primarily composed of oxygen.
B. Both planets show evidence of volcanic activity.
C. Both planets have retrograde rotation (clockwise, as viewed from above).
D. Both planets contain liquid water at their surface
4. Sort the sentences based on whether the attributes they describe belong to planets or an object that isn’t a planet.
A. The object orbits the sun.
B. The object is a satelite
C. The regions surrounding the object are free from debris.
D. The object is triangular in shape.
5. Match each attribute to the appropriate planet.
Venus
Jupiter
Earth
Mercury
densest planet in the solar system
hottest planet in the solar system
largest planet in the solar system
smallest planet in the solar system
Answers
The basic unit of electric current is the: ohm. ampere. conductivity. volt.
Answers
The basic unit of the measure of the rate of current flow in a conductor is ampere.
Option B) ampere is the correct answer.
What is Current?Current is simply the rate of flow of charged particles such as electrons caused by:
EMF or Voltage.An ampere is simply a unit of measure of the rate of current flowing through a conductor.
Ampere is the SI basic unit of electric current
Therefore, the basic unit of the measure of the rate of current flow in a conductor is ampere.
Option B) ampere is the correct answer.
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Answer:
B) ampere
Explanation:
True or false the incident angle is the angle formed between the barrier and the direction of wave propagation?
Answers
It is true that the incident angle is the angle formed between the barrier and the direction of wave propagation.
What is wave propagation?Wave propagation refer to the processes and different ways waves travels from one medium to another and transferring energy.
Therefore, is true that the incident angle is the angle formed between the barrier and the direction of wave propagation.
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A water wave approaches a wall with a small hole in it. The wave is blocked by the wall, except for the part that goes through the hole. The waves coming out of the hole begin to spread out as the new source of wavefronts. This is an example of what property?
a Interference
b Amplitude
c Collision
d Diffraction
Answers
Answer:
diffraction
Explanation:
took da test
Question 9 of 25
Which feature of a balanced chemical equation demonstrates the law of
conservation of mass?
OA. It has equal numbers of each type of atom in its reactants and
products.
OB. It shows the coefficients and subscripts of each formula shown in
the equation.
OC. It has a reaction arrow between the products and reactants of a
chemical reaction.
OD. It shows the chemical formula for each substance in its reactants
and products.
SUBMIT
Answers
A. It has equal numbers of each type of atom in its reactants and products.
a balanced chemical equation = number of elements on both side are equal
What type of energy change results when friction slows down an object.
Answers
A meter stick hurtles through space at a speed of 0. 95c relative to you, with its length perpendicular to the direction of motion. You measure its length to be equal to.
Answers
Answer:
Explanation:
Caty , Use the relativity formula for length. ( they teach this in H.S. ? ) it's from my Modern Physics in college, A 300 level class
L = [tex]L_{0}[/tex][tex]\sqrt{1-\frac{v^{2} }{c^{2} } }[/tex]
L = 3 [tex]\sqrt{1-\frac{.95^{2} }{1^{2} } }[/tex]
L = 0.9367496998 meters
L = 0.94 meters approx
What is the answer:
in the setup shown, a student pulls a string attached to a block with a force of F, The string applies a force with a magnitude of 21.1N on the block in the upward direction. the block has a weight of 19.6N.
A. 1.5N in the upward direction
B. 40.7N in the upward direction
C. 1.5N in the downward direction
D. 40.7 N in the downward direction
Answers
The magnitude and direction of the normal force will be 1.5N in the upward direction. Option A is correct.
What is tension force?The tension force is described as the force transferred through a rope, string, or wire as it is pulled by opposing forces.
The tension force is applied along the whole length of the wire, pulling energy equally on both ends.
The magnitude and direction of the normal force is found as;
[tex]\rm F_{net}=F_1-F_2 \\\\ \rm F_{net}=N\\\\ N=21.1 \ N - 19.6 \ N \\\\ N=1.5 \ N[/tex]
The grater force is in the upward direction. The magnitude and direction of the normal force will be 1.5N in the upward direction.
Hence,option A is correct.
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Answer:
1.5 N in the upward direction.
Explanation:
If the voltage of a circuit is doubled and the resistance remains unchanged, the current flowing through the circuit will be
Answers
If the voltage of a circuit is doubled and the resistance remains unchanged, then current flowing through the circuit: will Increase
Relationship between Current, Voltage and Resistance
The Current of a circuit is directly proportional to the voltage and inversely proportional to the resistance.
The voltage in a circuit is equal to the product of the current and the resistance in the circuit
The resistance in a circuit is directly proportional to the voltage but inversely proportional to the current.
In conclusion, If the voltage of a circuit is doubled and the resistance remains unchanged, then current flowing through the circuit: will Increase
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A grasshopper jumps at a 65.0° angle at 5.42 m/s. At what time does it reach its maximum height? (Unit = s)
Answers
Answer:
Vy = V sin θ = 5.42 m/s * .907 = 4.91 m/s initial vertical speed
Vy = a t = 0 at time it reaches maximum height
t = 4.91 m/s / 9.80 m/s^2 = .501 time to reach maximum height
Can someone please answer this, ill give you brainliest Would be very appreciated.
Answers
What property/properties of water allowed the water to stick to the penny?
Solution's:
Cohesion.Surface Tension.Explanation:
By these properties, the water molecules gets attracted to the other molecules. Hence, this makes the water get stick to the penny.
Answer:
cohesion and surface tension
Explanation:
The properties of cohesion as well as surface tension, possessed by water, made the water stick to the penny.
An alpha particle (charge 2e) and an electron move in opposite directions from the same point, each with the speed of 2. 80×105 m/s
Answers
The total magnetic field of the alpha particle will be = 1.974 x 10⁻⁴ T .
What is magnetic field?
Magnetic field is a region around a magnetic material or a moving electric charge within which the force of magnetism acts.
Magnetic field due to moving charge =
[tex]B=\dfrac{\mu_oq}{4\pi}\times \dfrac{v}{r^2}[/tex]
q is charge moving with velocity v and r is distance from point at which field is calculated .
For alpha particle
[tex]B_1=\dfrac{\mu_o}{4\pi}\times \dfrac{2\times 1.6\times 10^{-19]\times 2.8\times 10^{5}}}{(8.25\times 10^{-9})^2}}[/tex]
= 0.1316 x 10⁻³ T
For electron
[tex]B_2=\dfrac{\mu_o}{4\pi}\times \dfrac{1.6\times 10^{-19}\times 2.8\times 10^{5}}{(8.25\times 10^{-9})^2}[/tex]
= .0658 x 10⁻³ T .
Both these magnetic field will be same in direction because direction of equivalent current is same for both the particles .
Hence
Total magnetic field
= B₁ + B₂ = .1974 x 10⁻³
= 1.974 x 10⁻⁴ T .
Hence the total magnetic field of the alpha particle will be = 1.974 x 10⁻⁴ T .
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An object appears white because it ___. reflects all wavelengths of visible light absorbs all wavelengths of visible light reflects all wavelengths of ultraviolet light absorbs all wavelengths of ultraviolet light
Answers
An object appears white because it reflects all wavelengths of visible light . Option A is correct.
What is ultraviolet ray?
Ultraviolet rays are a kind of electromagnetic radiation that extends from the visible light spectrum to the X-ray area.
A white item reflects white light in all hues equally. We see the hue that an item does not absorb if it absorbs all except one. Red, orange, green, blue, indigo, and violet light are absorbed by the yellow strip in the diagram.
Harmful rays have a long-term effect on humans, causing skin and eye problems. It is also a source of vitamin C.
An object appears white because it reflects all wavelengths of visible light .
Hence, the correct answer for the blanks is reflects all wavelengths of visible light .
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A woman suddenly pulls a cart with a box to the right. Explain the motion. (Look at the picture I provide)
Answers
The box moves to the left to its resisting change in motion AKA inertia.
What is law of inertia?The law of inertia of Newton's first law of motion states that an object at rest o uniform motion in a straight line will continue in that path unless it is acted upon by an external force and will move in the direction of the applied force.
When the woman applies a force on the cart, the cart will move in the direction of the woman applying the force, while the box will move backward due to resisting change in motion.
Thus, the correct answer is, the box moves to the left to its resisting change in motion AKA inertia.
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The boom hoisting sheave must have pitch diameters of no less than.
Answers
Answer:
18 times
Explanation:
All sheaves used in the boom hoist reeving system must have a rope pitch diameter of not less than 18 times the nominal diameter of the rope used. The operating design factor for the boom hoist reeving system must be not less than five.
Is cracking the eggs a physical change or a chemical change and why
Answers
Answer:
Cracking of an egg is a physical change since the egg and the stuff inside does not change but the shape or appearance of the shell changes.
Explanation:
Hope it helps
Which formulas show the relationships between momentum, mass, and velocity? check all that apply. p = mv p = mass over volume p = volume over mass m = density over volume p = volume over density v = density over mass v = mass over density
Answers
The relationships between momentum, mass, and velocity is that the product of mass and velocity gives the momentum of that object ( kg.m/s ).
P = mv.
What is Momentum?Momentum is simply the product of the mass of an object and its velocity.
Its is expressed as;
P = m × v
Where m is the mass of the object and v is its velocity.
The relationships between momentum, mass, and velocity is that the product of mass and velocity gives the momentum of that object ( kg.m/s ).
P = mv
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Answer:(C)
Explanation:
because is 13 trust me I got it right
A neutron star is as dense as Group of answer choices water the nucleus of an atom the center of the Earth our astronomy textbook a white dwarf star
Answers
A neutron star is considered as dense as the nucleus of an atom, and it represents a special type of star.
What is a neutron star?A neutron star is a special kind of star generated after the death of a giant star that produces a supernova.
These stars (neutron stars) have a diameter really small, e.g., an area of ten kilometers in diameter.
In conclusion, a neutron star is as dense as the nucleus of an atom, and it represents a special type of star.
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Suppose it turns out that one in 1 million stars has a planet that at some point in its history is home to an advanced civilization. Then the total number of civilizations that have arisen in our galaxy would be closest to _____. Assume there are about 100 billion stars in the Milky Way galaxy.
Answers
It has been proposed that the total number of civilizations that have arisen in our galaxy would be closest to 100,000.
What is a galaxy?A galaxy is a group of stars (solar systems), gas, and dust in a specific position in the Universe.
The Milky Way is the galaxy where we live and it has been proposed that this galaxy is full of dead civilizations.
In conclusion, the total number of civilizations that have arisen in our galaxy would be closest to 100,000.
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