Answer:
1842.
Explanation: Blueprints were invented a generation before the Civil War by John Herschel, a chemist, astronomer, and photographer, in 1842.
Examine the cross-sectional slice of a stem of a mint plant. Which statement most specifically describes mint?
The available options are:
Mint is a dicot.
Mint is a monocot.
Mint is an angiosperm.
Mint is a bulb plant.
Answer:
Mint is a dicot.
Explanation:
Given the fact that Mint is considered to be a member of Lamiaceae, an angiosperm plant which is characterized by typically having leaves that consist of reticulate vacation and appears like veins in structure. It also has a seed that contains two cotyledons.
Hence, it is considered a DICOT PLANT due to these characteristics. The botanical name of Mint is referred to as Mentha arvensis.
Answer: A
Explanation:
A car engine produces a force of 2000N while moving a distance of 200m in a time of 10s. What is the power developed by the engine
Please help me I give good points
A 6.0 kg box is at rest on a table. The static friction coefficient 1, between the box and table is 0.40, and
the kinetic friction coefficient us is 0.20. Then, a 23 N horizontal force is applied to the box.
What is the best estimate of the magnitude of the box's acceleration?
Round the answer (if non-zero) to two significant digits.
Choose 1 answer:
Answer:
B. 1.1 m/s²
good luck, i hope this helps :)
What is the momentum of a 2.0-kg object that has a velocity of 8.0 m/s ?
Please help
uses of convace, convex mirror
Answer:
The concave mirror is a converging mirror so that it is used for many purposes, It is used as a torch to reflect the light, It is used in the aircraft landing at the airports to guide the aeroplanes, It is used in shaving to get an enlarged and erect image of the face.
Explanation:
Calculate equivalent resistance in the following between points P and Q.
[tex] \sf{(i) \: We \: are \: given \: a \: figure \: of \: Series \: Circuit. }[/tex]
[tex] \sf{Here \: Resistances \: are ,}[/tex]
[tex] \sf• \: R_{1} =3 Ω[/tex]
[tex] \sf• \: R_{2} =3Ω[/tex]
[tex] \sf• \: R_{3} =3Ω[/tex]
[tex] \sf{We \: know \: the \: formula \: of \: the \: Equivalent \: Resistance \: for \: Series \: Circuit, }[/tex]
[tex] \bf \red {\bigstar {\: R_{s} = R _{1} + R _{2} + R_{3}+...+ R_{n}}}[/tex][tex] \sf ⇒ R_{s} =(3 + 3 + 3)Ω[/tex]
[tex] \sf \therefore R_{s} =9Ω[/tex]
[tex] \sf \pink{ \boxed{Answer : 9 Ω.}}[/tex]
[tex] \\ \\ [/tex]
[tex] \sf{(ii) \: We \: are \: given \: a \: figure \: of \: Parallel \: Circuit. }[/tex]
[tex]\sf{Here \: Resistances \: are ,}[/tex]
[tex] \sf• \: R_{1} =3 Ω[/tex]
[tex] \sf• \: R_{2} =3 Ω[/tex]
[tex] \sf• \: R_{3} =3 Ω[/tex]
[tex] \sf{We \: know \: the \: formula \: of \: the \: Equivalent \: Resistance \: for \: Parallel \: Circuit, }[/tex]
[tex] \bf \red {\bigstar {\: \frac{1}{R_{p}} = \frac{1}{R _{1}} + \frac{1}{R_{2}} + \frac{1}{R_{3}}+...+\frac{1}{R_{n}} }}[/tex][tex] \sf⇒ \frac{1}{ R_{p} } = \frac{1}{3} + \frac{1}{3} + \frac{1}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = \frac{1 + 1 + 1}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = \frac{3}{3} [/tex]
[tex] \sf⇒ \frac{1}{ R_{p} } = 1[/tex]
[tex] \sf \therefore R_{p} = 1Ω[/tex]
[tex] \sf \pink{ \boxed{Answer : 1 Ω.}}[/tex]
hope it helps you.
A 6 cm object is 8 cm from a convex lens that has a focal length of 2.7 cm. The image is 4 cm from the lens.
The height of the image is
cm ______
Answer:
3cm
Explanation:
The height of the image will be "3 cm".
Convex lensAccording to the question,
Size of object, u₀ = 6 cm
Distance of object, u = 8 cm
Focal length, f = 2.7 cm
Distance of image, v = 4 cm
Let,
Height of image be "[tex]v_i[/tex]".
We know the formula,
→ Magnification, M = [tex]\frac{Distance \ of \ image}{Distance \ of \ object}[/tex]
By substituting the values, we get
= [tex]\frac{4}{8}[/tex]
= 0.5
hence,
The image's height be:
→ M = [tex]\frac{Height \ of \ image \ (v_i)}{Height \ of \ object \ (u_0)}[/tex]
0.5 = [tex]\frac{v_i}{6}[/tex]
By applying cross-multiplication,
[tex]v_i[/tex] = 0.5 × 6
= 3 cm
Thus the response above is correct.
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The graph shows the amplitude of a pausing wave over time in secondo (o).
What is the approximate frequency of the wave shown?
A. 0.5 Hz
B. 0.1 Hz
C. 9 Hz
D. 20Hz
Answer:
its B
Explanation:
i just took the test
0.1 Hz the approximate frequency of the wave shown.
What is Frequency?In physics, frequency is the number of waves that pass a fixed point in a unit of time as well as the number of cycles or vibrations that a body in periodic motion experiences in a unit of time.
After moving through a sequence of situations or locations and then returning to its initial position, a body in periodic motion is said to have experienced one cycle or one vibration. See also basic harmonic motion and angular velocity.
The frequency is 2 per second if the period, or time interval, needed to complete one cycle or vibration is 1/2 second; it is 100 per hour if the duration is 1/100 of an hour.
Therefore, 0.1 Hz the approximate frequency of the wave shown.
To learn more about Frequency, refer to the link:
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You can take your heart rate for 6 seconds and multiply by 10 to get the 60 second count quickly during
True
False
Answer:
true
Explanation:
What could you use to split white light into the colors of the rainbow?
A. A flashlight
B. A capacitor
C. A light bulb
D. A prism
Answer:
D
Explanation:
Answer:
prism
Explanation:
Which one is a element??
Answer:
A.) Carbon
Explanation:
Carbon is an element on the periodic table.
it has the symbol C, and is found in almost every single thing!
Answer:
Carbon
Explanation:
Ig
Whose atomic theory was the first to introduce the idea that all things are made from indivisible spheres called atoms and used evidence and research to back his findings? *
Answer:
Dalton's atomic theory
Explanation:
Dalton's atomic theory was the first to introduce the idea that all things are made from indivisible spheres called atoms and used evidence and research to back his findings. This theory was based on the law of constant composition and the law of conservation of mass. Also, this theory explains the matter in terms properties of atoms.
______ images are obtained when the plane mirror are kept parallel to the each other
.infinite.
&
also
.virtual.
You apply a force of 68N to lift a box 4m off the ground in 2s. What was your power?
Answer:
136........
.............
Help anyone ? I need to pass this test !!!
Sitting causes your hip flexors to shorten, this can cause:
a.
weight gain
b.
heart disease
c.
tight hips
d.
varicose veins
Answer:
c. tight hips
Explanation:
sitting for too long is a major culprit in tightening the hip flexors. When you sit all day at a desk, the iliopsoas, in particular, shortens, making the flexors tight.
How much work is performed when a 50 kg crate is pushed 15 m with a force of 20 N?
Answer:
300 jules
Explanation:
10 points whats an average height for a egg drop? 20m or what?
Answer:
Egg Drop Challenge height
The containers will be dropped from an initial height of about 11.5 ft. The second and final drop will be from the second floor (about 19.5 ft).
Explanation:
1. An elephant has a mass of 5,500 kg. What is the elephant's weight?
Write equation here:
Answer:
12125.42 Lbs.
Explanation:
The weight of the elephant is 53,900 N
The given parameters;
mass of the elephant = 5,500 kg
The weight of the elephant is calculated as;
Weight = mg
where;
m is the mass of the elephant
g is acceleration due to gravity = 9.8 m/s²
The weight of the elephant is calculated by substituting the given parameters;
Weight = 5,500 x 9.8 = 53,900 N
Thus, the weight of the elephant is 53,900 N
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How does physical fitness best reflect having a scientific foundation (connected to science)?Explain
Explanation:
Physical fitness is a state of health and well-being and, more specifically, the ability to perform aspects of sports, occupations and daily activities. Physical fitness is generally achieved through proper nutrition, moderate-vigorous physical exercise, and sufficient rest.
Physical fitness is generally achieved through exercise. Photo shows Rich Froning Jr. – four-time winner of "Fittest Man on Earth" title.
Before the industrial revolution, fitness was defined as the capacity to carry out the day’s activities without undue fatigue. However, with automation and changes in lifestyles physical fitness is now considered a measure of the body's ability to function efficiently and effectively in work and leisure activities, to be healthy, to resist hypokinetic diseases, and to meet emergency situations.
The principal ran a marathon, 26.2 miles in 3 hours. This is an example of.....
A-speed
B-velocity
C-acceleration
pls pls help me out AHH, what is not true about MEIOSIS?
A. The chromosomes in the daughter cells half the number from the parent cell.
B. The chromosomes in the daughter cells are the same number as the parents cell.
C. The only cells that will undergo meiosis will become sperm or egg cells used for reproduction.
D. The shuffling of genes happens in meiosis.
Answer:
B.
Explanation:
This is not true as the number of chromosomes in the daughter cells are half the number in the parent's cells
What does the model below represent?
2CO + O2 → 2C02
A. An experiment
B. A chemical reaction
C. A release of heat
D. The production of oxygen
Answer:
B. a chemical reaction
Explanation:
2CO + O2 → 2C02
Answer:
B. A chemical reaction
it's formed when carbon monoxide react with oxygen and forms carbon dioxide
If a velocity-time graph is horizontal, then acceleration is
a
zero.
b
positive
С
less than 1.
d
none of the above
If the velocity-time graph is horizontal, the acceleration is zero because the slope will be zero.
Why is photosynthesis essential for plant homeostasis?
a
To color leaves green
b
To make food for the plant
c
To remove carbon dioxide from leaves
d
To make new types of cells
pls help me with it..fast as possible...pls .....
Answer:
Because the light only spears to part of the water so it would appear less deep
HELLPPP!!!
which of the following is a human action that could lead to decreased amounts of greenhouse gases found in the atmosphere, such as carbon dioxide?
A ) Generating energy by burning coal
B ) Deforestation
C ) Driving Automobiles
D) Planting Trees
Answer:
D
Explanation:
planting trees because they store these gases and turn it into oxygen
Answer:
It is going to be D.
Explanation:
Hope this helps
Everything is made up of blank and all matter is made of blank. There are three basic parts of atom: protons,neutrons, and blank. The blank and blank are located in the center of the atom; this area is called the blank. The electrons are found orbiting around the nucleus in an area we call the blank. They are organized into levels within the electron cloud, and the outermost level is referred to as the blank level.
What’s I called when a HORIZONTAL VELOCITY DIVIDED BY VELOCITY.
How long will it take a bear to run 45 meters if it is traveling at 10m/s
why do other gases in the air not condense and change States
Answer:
b) the air does not get warm enough