Answer:
mulitipy the numbers and u will get the answer!!
What is the mechanical advantage of the screw shown below? O A. 14.1 O B. 2 O C. 12.6 O D. 8.2.
Answer: C. 12.6
Explanation: 2*pi*1.8= 11.304
11.304/0.9= 12.56
Imagine that you are assigned a four- to five-page essay that is due in three weeks. The teacher hands you the following writing prompt to guide your assignment: "Scientists have successfully cloned animals, such as Dolly the sheep. Some people hope that cloning techniques will be used to clone humans someday, while others strongly oppose this use of technology. What is your position on cloning humans? Write a persuasive essay articulating your position on the cloning of humans. Use specific examples and details to support your views." Choose an audience for this research project. Describe the intended audience for this paper. With your topic in mind, determine what they already know and what you will need to cover.
Answer: As you already know people have cloned dolly sheep but what about people? will we be able to clone ourselves one day?. Good question, actually scientist believe it may be possible years from now, though it wouldn't be right if we didn't research. It is hard to clone animals let alone people which is probably one of the reason's some human's oppose it so much. Think of it this way though if we cloned ourselves or someone clones us after we die it'll be like we never left. It will bring less heart-ship to people knowing can always have that person. it will also make life more evolved in evolution and theory.
i couldn't think of anything else but her's a start :)
A toy boat moves horizontally in a pond. The horizontal position of the boat in meters over time is shown below. What is the displacement of the boat between 0s and 16s? What is the distance traveled by the boat between 0s and 16s?
Answer:
displacement=-21
distance=39
Explanation:
A spring has a spring constant of 25 N/m. What force is necessary to stretch the spring 0.2 m?
Answer: 0.5 J
Explanation:
PEspring = 1/2(k)(x²)
PEspring = 1/2(25)(0.2²)
PEspring = 0.5 J
4Osteoporosis is a disorder that can be caused by not consuming enough calcium. What can you infer about osteoporosis
Answer:
It affects the bones
Explanation:
Many inorganic elements are very useful in the body. Many of them carry out diverse important functions and play key roles in parts of the body.
Calcium is essential for strong bones. Hence, any disorder that results from not consuming enough calcium must be connected to the bone.
Therefore, osteoporosis affects the bone.
A thin wire of length (2 m) and (1 mm2 ) cross-section area is clamped horizontally between two walls, a weight of (10 kg) is hung at the middle of the wire depressed it (2 cm). Find young's modulus?
Answer:
Young modulus = 9.8 × 10⁹ N/m²
Explanation:
From the information given:
Stress = F/A
Stress = (10 × 9.8) / 0.001²
Stress = 9.8× 10⁷ N/m²
Strain = increase in length / initial length of wire
Strain = 0.02/ 2
Strain = 0.01
Now;
The Young modulus (Y)= stress/strain
Young modulus = (9.8 × 10⁷ N/m²) / 0.01
Young modulus = 9.8 × 10⁹ N/m²
What is the velocity of an object that has been in free fall for 2.5 s?
A. -3.9 m/s downward
B. 3.9 m/s downward
C. 250 m/s downward
O
D. 25 m/s downward
Answer: D. 25 m/s Downward
Explanation:
V = (g)(t)
V = (9.8 m/s²)(2.5)
V = 24.5 m/s
Match the term to its description.
Elliptical galaxy
Galaxy
Lens galaxy
Spiral galaxy
Answer choices:
Forms a perfect sphere or an ellipse and is flattened to some degree.
Is a collection of several billion stars and interstellar matter isolated in space.
Has a large flattened core.
Has a central core from which curved arms spiral outward.
Answer with Explanation:
Elliptical galaxy = Forms a perfect sphere or an ellipse and is flattened to some degree.
The context clue here is the word "ellipse." The elliptical galaxy follows the elliptical shape. It is considered as the most abundant type of galaxy.Galaxy = Is a collection of several billion stars and interstellar matter isolated in space.
A galaxy is made up of billions of stars, and these stars are drawn together by gravitational force.Lens galaxy = Has a large flattened core.
A lens galaxy has a large flattened core, similar to the shape of a lens.Spiral galaxy = Has a central core from which curved arms spiral outward.
The context clue here is the word "spiral outward." The swirling arms is a common characteristic of spiral galaxies.
Answer:
Elliptical galaxy – Forms a perfect sphere or an ellipse and is flattened to some degree.
Galaxy – Is a collection of several billion stars and interstellar matter isolated in space.
Lens galaxy – Has a large flattened core.
Spiral galaxy – Has a central core from which curved arms spiral outward.
Correctly identify how many particles are present in the following atom of silver.
Protons 60 , 47 , 46
Electrons 60 , 47 , 46
Neutrons 60 , 47 , 46
Answer:
I believe it would be 60 Neutrons, 46 Protons, and 47 Electrons
Explanation:
[tex]\huge{\textbf{\textsf{{\color{pink}{An}}{\red{sw}}{\orange{er}} {\color{yellow}{:}}}}}[/tex]
The element silver has 47 protons, 47 electrons 60 neutrons.
thanks hope it helps
An object is moving to the west at a constant speed. Three forces are exerted on the object. One force is 10 N directed due North, and another is 10N directed due West. What is the magnitude and direction of the third force if the object is to continue moving West at a constant speed?
Answer:
10 N south
Explanation:
It cancels out the north allowing the object to keep going west :)
i think this might be wrong so like don't trust me-
Light waves can travel in vacuum.
But sound waves can not travel in
vacuum. Why?
there are no molecules in it to vibrate
In a much smaller model of the Gizmo apparatus, a 5 kg mass drops 86 mm (0.086 m) and raises the temperature of 1 gram of water 1°C. How much energy was transferred to the water? (Use a value of 9.8 m/s2 for g.)
Answer:
The amount of energy transferred to the water is E = 4.214 [J]
Explanation:
The energy that was transferred to the water was originally found as potential energy, when the mass falls the distance of 86 mm, this energy is converted to kinetic energy and at the moment of falling into the water it is converted from kinetic energy to thermal.
[tex]E_{pot}=E_{kin}\\E_{pot}=m*g*h[/tex]
where:
m = mass = 5 [kg]
g = gravity = 9.8 [m/s²]
h = elevation = 86 [mm] = 0.086 [m]
[tex]E_{pot}=5*9.8*0.086\\E_{pot}=4.214[J][/tex]
The coefficient of kinetic friction between an object and the surface upon which it is sliding is 0.28. The weight of the object is 30N. What is the force of friction?
Answer:
30 x 0.28 = 3.78 is your answer
Explanation:
the question is asking for the weight of the object so you multiply and get 3.79
What is the resultant velocity for a plane that is flying due east at 33m/s that is also being carried due north at 12m/s by the wind
Answer:
v = 35.11 m / s, θ = 20º north of east
Explanation:
This is a compound problem of relative velocities, we can use the Pythagorean theorem to find the modulus of the resulting velocity
v² = v₁² + v₂²
where the eastward velocity is v₁=33 m/s and the northward velocity
v₂=12 m / s
v = [tex]\sqrt{33^2 +12^2}[/tex]
v = 35.11 m / s
the direction of this velocity can be found with the uses of trigonometry
tan θ = v₂ / v₁
θ = tan⁻¹ v₂ / v₁
θ = tan⁻¹ 12/33
θ = 20º
this angles is north of east
name three types of forces observed in the movie sharkboy and lavagirl
Answer: I think it would be lava, water and air
Explanation: I’m not so sure
Answer:
fire , water , land
Explanation:
i'm guessing i don't know what kind of forces we're talking about here :)
add me as a friend , ill add back so we can be friends !! <3
☆ REMINDER : ☆
☁ ˖⁺ stay safe we are still in the middle of a pandemic
☁˖⁺ drink plenty of water to stay hydrated
☁ ˖⁺ love yourself and know someone loves you
☁ ˖⁺ never give up and talk to someone if your feelings scared/sad/mad
☁ ˖⁺ its never okay to stay silent .
﹤୨♡୧﹥ have an amazing day/night
Which of the following is the water cycle process where the extra water that plants release is evaporated from their leaves?
a
Condensation
b
Evaporation
c
Precipitation
d
Transpiration
help, please!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Answer:
D
Explanation:
if john's baseball has a uniform acceleration of 11.18 m/s2 at time T= 3, what should it's acceleration measure at time T= 5?
When a scenario has tension force present, does that tension force also count as applied force? (also I assume tension force is "towing force" is that correct?)
(asking this again because I was trolled.)
Answer:
[tex] \underline{\boxed{B : C:D:E}}[/tex]
Explanation:
[tex] \underline{ \boxed{ B}} : \to \\ (the \: surface \: exacts \: a \: force\: normal \: (at \: 90 \degree) \: on \:\to A) \\ \underline{ \boxed{C }}: \to \\ (dynamic \: friction \: force \: acts \to \: on \: A \: as \: it \: slides) \\ \underline{ \boxed{D }} : \to \\ (an \: anti - upward \: force \: acts \: on \to \:A \: preventing \: it \: from \: floating ) \\ \underline{ \boxed{ E }} : \to \\ (the \: weight \: of \: B \: \: is \: applied \: to \to \: A)\\ [/tex]
If a force of 10 N stretches a spring 0.5 m, what is the spring constant?
Answer:
the spring would be a constant of 10.5 m
how much work does gravity do on the mountain climber if they rappel down the mountain
A person pushed on the petal of a bike and causes it to move to the left. The applied force was 85 N left and the force of friction was 12 N right. Find the net force
Answer:
The net force is 73 N to the left
Explanation:
The net force f = applied force, F + frictional force, f'
f = F - f'
If we take right as positive,
F = -85 N (since it is to the left) and f' = +12 N (since it is to the right)
So, f = F + f'
f = -85 N + 12 N
f = -73 N
So, the net force is 73 N to the left
I need help answering these questions! Please!
Answer:c
Explanation:
Also are u taking a benchmark or cfa
HELP PLZ ASAP!!!!!
Which of the following steps does not take place during cellular respiration?
a
Glucose is broken down.
b
Energy is transferred to cells.
c
Oxygen combines with carbon dioxide.
d
Energy and other products are released.
Answer:
C. Oxygen combines with carbon dioxide
Explanation:
B i o l o g y
Also, oxygen is a reactant and carbon dioxide is a product of cellular respiration that does not combine during this process
Hope it helps
One day on her walk home from school, Leann noticed some rust on an old car Leann knows that when iron and oxygen chemically react, they can
form rust She remembered that models can be used to summarize what happens in a chemical reaction. She decides to create a model of this
chemical reaction What is the name that describes the iron and oxygen found on the left side of Leann's model?
4 Fe + 302 -
• 2Fezos
A products
reactants
C. Scientific notation
D.Synthesis
Answer:
reactants
Explanation:
The reaction model is given as shown below:
4Fe + 3O₂ → 2Fe₂O₃
The name that describes the iron and oxygen found on the left hand side of Leann's model is reactants.
Reactants in a chemical expression are the species that are combining together to give a product.
Some reactions only have one reactant and such a chemical process is often termed decomposition reaction.
The two moles of Fe₂O₃ is the product of the reaction.
4.
Which wave diffracts the most when encountering an obstacle?
O a surface wave
O a wave with the longest wavelength
O a longitudinal wave
O a wave with the highest amplitude
Answer:
Answer is a wave with the longest wavelength.
Explanation:
I hope it's helpful!
Someone pushes on a rock and measures the net force acting on it is 147 N and acceleration to be 7.5m/s2.What is the weight of the rock?
Is the box moving at a constant speed? Explain how you know. What does this tell you about the kinetic energy of the system
Answer:
The box is moved at constant speed, then the change in kinetic energy is zero.
Explanation:
Let suppose that box moves at constant speed, meaning that its kinetic energy ([tex]K[/tex]), measured in joules, is expressed by the following equation:
[tex]K = \frac{1}{2}\cdot m\cdot v^{2}[/tex] (1)
Where:
[tex]m[/tex] - Mass, measured in kilograms.
[tex]v[/tex] - Speed, measured in meters per second.
If the box moves at constant speed, then we notice that [tex]v_{f}^{2}-v_{o}^{2} = 0[/tex], therefore, [tex]\Delta K = 0[/tex]. In a nutshell, if the box is moved at constant speed, then the change in kinetic energy is zero.
PLEASE HELP ITS DUE TODAY
What evidence have you discovered to explain how the shape of a wave changes as the source of the wave changes?
Answer:
Many forms of energy are carried in heat, light, sound, and water waves. Energy is defined as the ability to do work; all forms of energy can be transformed into work. ... Ocean waves offer a very large source of renewable energy. ... 4.18 A). When deep-water waves move into shallow water, they change into breaking waves
Explanation:
search
uan created a chart to help him study for a test.
A 2-column table. The first column labeled X has entries some light is reflected, some light is absorbed, no light passes through. The second column labeled Y has entries some light is reflected, some light is absorbed, some light is reflected, most light passes through.
Which headings best complete the chart?
X: Transparent Objects
Y: Opaque Objects
X: Opaque Objects
Y: Transparent Objects
X: High Frequency Waves
Y: Low Frequency Waves
X: Low Frequency Waves
Y: High Frequency Waves
Answer:
Y: transparent objects i think
Answer:
The answer is B: X: Opaque Objects ; Y: Transparent Objects
Explanation:
The X column describes that the light that shines on that object is reflective, slightly absorptive, and no light passes through it. This describes opaque objects. Opaque objects are mostly made up of solids, such as rocks and apples.
The Y column describes that the light that shines on it is sometimes refracted, sometimes absorbed, and sometimes reflected, but the light almost always passes through it. This describes transparent objects. Transparent objects are mostly clear, so you can see through them, such as glass vases and windows.
