Answer:
Between 100 and 120 million years old
Explanation:
The principle of superposition refers to one of the geological principles used in the determining the relative depositional history or sequence of rock stratas in geologic stratigraphic study. The superposition principle explains that rocks deposited in stratas with the oldest rock layer being at the base and the youngest at the topmost layer. Hence using this principle, we can conclude that ; Rock layer M lies in between layer T and R ; thus M is younger than T and older than R. Therefore, the age of M will be between the range of age T and R.
Why friction is called necessary evil?
Explanation:
Frictional force causes a lot of losses in general upkeep and wear and tear of machinery. Hence it is considered as a evil. But almost all crucial tasks cannot be carried out without the presence of friction. ... Hence it is considered as a necessary evil .
Explanation:
Frictional force causes a lot of losses in general upkeep and wear and tear of machinery. Hence it is considered as a evil. But almost all crucial tasks cannot be carried out without the presence of friction. ... Hence it is considered as a necessary evil .
What would be the mass of the same object on the moon, where gravity is one sixth of Earth gravity?
A dentist uses a small concave mirror to locate a cavity in a patient's tooth. The focal length of the mirror is 2.00 cm. If the mirror is held 1.60 cm from the tooth, how many times bigger will the image be? (In other words, what is the magnification?)
Answer:
m = 4.0
Explanation:
For this exercise in geometric optics we will use the equation of the constructor
[tex]\frac{1}{f} = \frac{1}{p} + \frac{1}{q}[/tex]
where f is the focal length, p and q are the distance to the object and image, respectively.
In the exercise indicate the focal length f = 2.00 cm, the distance to the object p = 1.60 cm, let's find the distance to the image
[tex]\frac{1}{q} = \frac{1}{f} - \frac{1}{p}[/tex]
let's calculate
[tex]\frac{1}{q} = \frac{1}{2} - \frac{1}{1.6}[/tex]1 / q = ½ - 1 / 1.6
[tex]\frac{1}{q}[/tex] = -0.125
q = -8 cm
the magnification is
m = - q / p
m = 8/2
m = 4.0
A 76 N crate is hung from a spring
(k = 450 N/m). How much displacement
is caused by the weight of this crate
Answer: 0.169 (3 s.f.)
Explanation:
Force = 76 N
Spring constant = 450 N/m
Extension/displacement = x
Hooke's law states that: F = kx
Therefore, 76 = 450 X x
76/450 = x
0.169 (3 s.f.) = x
A team of students develop a model to describe why structural changes to genes affect proteins. The team provides two groups of students with the same materials, but one group must make a bridge while the other group makes a building. Analyze the team's model and explain why it incorrectly models the impact of gene mutations on proteins.
Answer:
The team's model is incorrect because they provide the same materials to build the same product.
Explanation:
The fundamental and the structural unit of the hereditary that codes for certain information and proteins required for signalling and cell functioning are called a gene.
The bridge model is correct.
How the gene mutations can impact the proteins?Gene codes for various proteins required by the cell to function and regulate, a mutation or change in the sequence of the region will result in the modification of the proteins coded and hence the genotype and the phenotype will alter.
In the building model if a gene is mutated and the proteins get altered then the whole sequence and the information for which it is coding will modify.
Therefore, gene mutation will affect the proteins.
Learn more about gene mutation here:
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Which of the following occurs when a catalyst is used in a chemical reaction?
A. the catalyst speeds up the rate of the chemical reaction
B. the catalyst always brings the reactants close together
C. the catalyst is permanently changed by the reaction
D. the catalyst increases the activation energy needed for the reaction to take place
Answer:
b might be correct
Explanation:
because alcohol react complete different manner in presence of catlyst
Do any individual air molecules travel the length of the tube?
Planet X and planet y have a mass of 6 x 1024 kg and 3 x 1025 kg. The gravitational force
between the two planets is 5.6 x 1020 N. How far apart is planet X from planet Y?
Answer: 6 x 1024 kg = 6144 kg
3 x 1025 kg = 3075 kg
5,6 x 1020 N = 5712 N
6144 + 3075 = 9 219 kg
9219 x 5712 = 52 658 928 de distance
je ne suis pas sur de mon cacul
Explanation:
How do you write an article?
Answer:
Choose/Pick your topic which is required for your target audience. Do some research and collect the needed information for your selected topic. Organize all important topic related facts & stats in a logical way. Write all your reader’s needs to influence & help them. Make your views unique & specific. Read, Revise, and Repeat. Cross-check the grammatical mistakes & avoid unnecessary & repetitive lines
Hope this helps!!
Answer:
You have to choose a topic which you'd might like. And write about it. Make sure to provide lots of details and make your reasoning very strong to support your topic. Make sure to re-read and edit misinformation. Correct all grammatical errors and as such that do not make sense. Make sure to do great researching on the internet to provide lots of evidence for your chosen topic.
Which element is represented by the atomic model below?
P:10
N:10
A. calcium
B. helium
C. neon
D. oxygen
1hp is written in electric motor what does it mean
Explanation:
The horsepower (hp) is a unit in the foot-pound-second ( fps ) or English system, sometimes used to express the rate at which mechanical energy is expended. It was originally defined as 550 foot-pounds per second (ft-lb/s). A power level of 1 hp is approximately equivalent to 746 watt s (W) or 0.746 kilowatt s (kW).
Having _________is the most obvious difference between a eukaryotic and a prokaryotic cell, but there are other differences as well.
a
DNA
b
Cytoplasm
c
a pulse
d
a nucleus
Prokaryotic cells don’t ____________ have like eukaryotic cells.
a
DNA
b
membrane-bound organelles
c
cytoplasam
d
brains
Prokaryotic cells are also usually around ____________ than eukaryotic cells
a
ten times larger
b
half the size
c
ten times smaller
d
twice as large
An example of an organism that is eukaryotic would be
a
bacteria cell
b
animal cell
c
archaea
An example of a prokaryotic organism?
a
plant and animal cell
b
fungi
c
bacteria
d
human cell
GIVE ME ANSWERS AND I WILL GIVE U BRAINLIEST AD 50 POINTS
Answer:
1. d. a nucleus
2. b. Membrane-bound organelles
3. c. ten time smaller
4. b. animal cell
5. c. Bacteria
Explanation:
Hope this helps... :)
What kind of energy does an unlit match have?
a. thermal energy
b. kinetic energy
c. chemical energy
What is the kinetic energy of a 1 kg ball thrown to a height of 10 meters?
A.9800 Joules
B.98 Joules
C.9.8 Joules
D.98 Joules
Answer:
I think it's B
Explanation:
sorry if im wrong
A micro element that is essential for the formation of haemoglobin
Iron ( Fe ) is a micro element that is essential for the formation of haemoglobin.
Hemoglobin has two components-
Haem - The iron partGlobin - The proteinaceous partFind the velocity in m/s of a swimmer who swims 110m toward the shore in 72s
*show your work pls*
A boy notices that 45 complete waves travel past him in ninety seconds. What is the
frequency of these water waves
Answer:
0.5 Hz
Hope you find this helpful. Please mark me as brainliest!
How are interference patterns made?
WILL MARK BRAINLIEST FOR CORRCET ANSWER!!!!!!!!!
What is the name of the method for drawing a trend line for the data in a scatterplot in which an oval is drawn around all the points in the scatterplot except the outliers?
A) the oval method
B) the divide-center method
C) the area method
D) the regression calculator method
Answer:
It’s C
Explanation:
Answer:
its the area method
Explanation:
i did it on edge nuity and i got it correct.
otion
17 A cyclist is moving with a speed of 18km/h on a plane road. He turns the bicycle on the cir
radius 3m. The coefficient of friction between the tyres and road is 0.1. Will he skid or not?
Answer:
SKID
Explanation:
In general, airplane tracks are flat, they do not have cant, consequently the friction force is what keeps the bicycle in the circle.
Let's use Newton's second law, let's set a reference frame with the horizontal x-axis and the vertical y-axis.
Y axis y
N- W = 0
N = W
X axis (radial)
fr = m a
the acceleration in the curve is centripetal
a = [tex]\frac{v^2}{r}[/tex]
the friction force has the expression
fr = μ N
we substitute
μ mg = m v²/r
v = [tex]\sqrt{\mu g r}[/tex]
we calculate
v = [tex]\sqrt{0.1 \ 9.8 \ 3}[/tex]
v = 1,715 m / s
to compare with the cyclist's speed let's reduce to the SI system
v₀ = 18 km / h (1000 m / 1 km) (1 h / 3600 s) = 5 m / s
We can see that the speed that the cyclist is carrying is greater than the speed that the curve can take, therefore the cyclist will SKID
A car is moving along a road. What force between the tyres and the road makes the car stop? Tick the correct box. Air Resistance, Gravity, Friction or weight?
Answer:All the forces are acting. The force due to which the car stops that is between road and tire is "friction".
Explanation:
12
C
6
What is the number of protons in this carbon atom?
OA. 12
OB. 6
O C. 18
OD. 24
Answer:
B. 6
Explanation:
i think... im in 7th grade and haven't really leaned this but im like 60% sure but i migjt be wrong
Answer:
your answer is B 6 protons
Explanation:
since the atomic number for carbon is 6 it also represents the number of protons and electrons
On the planet Xenos, an astronaut observes that a 1.00 m long pendulum has a period of 1.50 s. What is the
free-fall acceleration on Xenos?
Answer:
g=1.77π2xm/s2
Explanation:
T
=
2
π
√
l
g
∴
√
l
g
=
T
2
π
∴
l
g
=
T
2
4
π
2
∴
g
l
=
4
π
2
T
2
∴
g
=
4
π
2
l
T
2
g
=
4
π
2
×
1.00
1.50
2
=
1.77
π
2
x
m/s
2
PLEASEEEE HELP
Blue light of wavelength 435 nm
enters diamond (n = 2.42). What
is the wavelength of the light in
diamond?
(Unit = nm)
Answer:
Wavelength of light in diamond λ2 = 179.75 nm (Approx.)
Explanation:
Given:
Blue light of wavelength λ1 = 435 nm
n2 in diamond = 2.42
Find:
Wavelength of light in diamond λ2
Computation:
Since the wavelength is smaller, the frequency stays constant. The frequency of vibrations does not shift when they pass from one source to the next.
So,
n1λ1 = n2λ2
(1)(435) = (2.42)λ2
Wavelength of light in diamond λ2 = 179.75 nm (Approx.)
Answer:
180
Explanation:
got it right on acellus
The model shows how the Sun fuses two nuclei of hellum-3 into beryllium-6. Since beryllium-6 is unstable, it will decay into smaller nuclei.
What additional product completes the model?
O A Helium-4
OB Helium-8
o C Carbon-4
OD Carbon-8
Answer:
A
Explanation:
I took the test
The equation shown is used to calculate moments. The value d is the __________ from the line of action of the force to the __________. What two words complete the FIRST gap in this sentence?
Answer:
The answer is "perpendicular and distance".
Explanation:
The Perpendicularity would be the connection of two lines that meet in such a right angle perpendicularity (90 degrees). It extends to all geometric objects involved.
The Distance was its cumulative motion of a body regardless of the direction that's why the value "d" is perpendicular to the distance from the transformer.
A spherical mirror used in solar furnace focuses sunlight on its principal axis at a distance 12 cm from its pole. The radius of curvature of the mirror is
20 POINTS
Answer:
R = 24 cm
Explanation:
Given that,
A spherical mirror used in solar furnace focuses sunlight on its principal axis at a distance 12 cm from its pole. It means the focal length of the mirror is equal to 12 cm
We need to find the radius of curvature of the mirror. Let it is R. We know that the relation between radius of curvature and the focal length is given by :
R = 2f
So,
[tex]R=2\times 12\\\\=24\ cm[/tex]
So, the radius of curvature of the mirror is equal to 24 cm.
The total mechanical energy of a basketball is 400 J. If the kinetic energy is 286 J, what must the potential energy be?
Answer:
the potential energy is 114 J.
Explanation:
Given;
total mechanical energy, E = 400 J
kinetic energy, K.E = 286 J
The potential energy is calculated as follows;
E = K.E + P.E
where;
P.E is the potential energy
P.E = E - K.E
P.E = 400 J - 286 J
P.E = 114 J
Therefore, the potential energy is 114 J.
Which bar graph could represent the reaction rates of a reversible reaction
that has just begun?
The answer is A. Just did it.
Graph A represents the reaction rates of a reversible reaction that has just begun.
What is meant by reversible reaction ?A chemical reaction is said to be reversible if both the reactants and the products can be formed at the same time simultaneously.
Here,
Both the forward and reverse reactions typically take place concurrently in a reversible reaction.
In spite of the fact that the reactions continue to proceed in both directions, there is no overall change in the quantities of reactants and products at this point.
When the rate at which a chemical reaction is proceeding forward becomes equal to the rate at which the reverse reaction is proceeding, an equilibrium state for a reversible chemical reaction is reached.
Hence,
Graph A represents the reaction rates of a reversible reaction that has just begun.
To learn more about reversible reaction, click:
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A body weighs 160N in air and 120N when totally immersed in a liquid of relative density (R.D) 0.80. Calculate the relative density of the body.
Answer:
3.2
Explanation:
The computation of the relative density of the body is shown below:
Given that
W denotes the weight of the body in air = 160 N
ρ' denotes density of the body
V denotes volume of the body
Now weight of the body in the air is
W = ρ' V g ............................... (1)
And,
W' denotes weight of the body in liquid = 120 N
Now the force of buoyancy is
F = W - W'
= 160 - 120
= 40 N
And, ρ denotes density of liquid
The force of buoyancy is
F = ρ V g .................................(2)
Now divide equation 1 from equation 2
160 ÷ 40 = ρ' V g ÷ (ρ V g )
4 = ρ' ÷ (0.8 )
ρ' = 3.2