Answers
Answer:
ooooooooooooooooo
Explanation:
*makes holy water*
Related Questions
Calculate the aceleration of a vehicle of 100 kg when applicates 400 N
Answers
Answer:
For this we applicate 2nd law of Newton:
F = ma
Replacing:
400 N = 100 kg * a
a = 400 N / 100 kg
a = 4 m/s²
The aceleration is 4 meters per second squared.
Answer:
....................
Explanation:
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Block on inclined plane experience a force due to gravity of 300N straight down. If the slope is inclined at 67.8°to the horizontal. What is the component of the force due to gravity perpendicular and parallel to the slope?
Answers
Answer:
The component of the force due to gravity perpendicular and parallel to the slope is 113.4 N and 277.8 N respectively.
Explanation:
Force is any cause capable of modifying the state of motion or rest of a body or of producing a deformation in it. Any force can be decomposed into two vectors, so that the sum of both vectors matches the vector before decomposing. The decomposition of a force into its components can be done in any direction.
Taking into account the simple trigonometric relations, such as sine, cosine and tangent, the value of their components and the value of the angle of application, then the parallel and perpendicular components will be:
Fparallel = F*sinα =300 N*sin 67.8° =300 N*0.926⇒ Fparallel =277.8 N Fperpendicular = F*cosα = 300 N*cos 67.8° = 300 N*0.378 ⇒ Fperpendicular= 113.4 NThe component of the force due to gravity perpendicular and parallel to the slope is 113.4 N and 277.8 N respectively.
What is the height of a shelf that has 15 kg objects with 450 J of gravitational potential energy
Answers
450J=15kg•9.8m/s2squared
450=147h
—— ——
147 147
h=3.0612m
newtons _ law of motion states that every action has an equal and opposite reaction
Answers
Answer:
3rd
Explanation:
3rd
What is the distance moved by a horse galloping at 75 km/h in 10.0 s?
750 m
208 m
125 m
7.5 m
Answers
125Answer:
Explanation:uruhavdfh
A molecule of water H2O and a molecule of methane CH4 have close to the same mass Which statement explains why water has much higher boiling point than methane?
A. There is hoydrogen bonding between water molecules?
B. There is ionic bonding between water molecules
C. There is hydrogen bonding between methane molecules
D. There is ionic bonding between methane molecules
Answers
Answer:
A. There is hydrogen bonding between water molecules
Explanation:
Boiling point is a physical property of matter. It is typically conditioned by the intermolecular forces present between the molecules of a compound.
The nature of the intermolecular forces between the molecules of water is very different from those of methane. Water molecules have hydrogen bonds within their molecules. These intermolecular bonds are very strong compared to the london dispersion forces in methane. Hydrogen bond forms when the hydrogen of one molecule binds with the oxygen of another molecule.Answer:
A)
Explanation:
There is hydrogen bonding between water molecules
similarities between the flow of water and an electric circuit.
Answers
They both flow in currents. Water has a pump that works like a battery and pipes that work like a circuit.
help me please I will thank you
Answers
Answer:
DNA= 2 strands, sugar is deoxyribose, and the Nitrogen Bases are adenine, uracil, cytosine, and thymine.
RNA= 1 strands, sugar is ribose, and the Nitrogen Nases are adenine, uracil, cytosine, and guanine.
Hope this helps :)
Explanation:
If you launch an object in space, it
will continue to move forward
until an external force stops it.
This is a characteristic of which
law?
Answers
Answer:
I believe this represents Newton's first law of motion. Any object in motion will continue to move until a force stops it, be it friction or a physical object.
What is a force that opposes motion between two surfaces that are in contact?
Answers
Answer:
Friction is a force that opposes motion.
Which statement best explains why Earth’s outer core is in liquid form? The iron-nickel alloy melts due to hot temperatures. The outer core has a tarry consistency. This region is less dense when compared to the mantle. This region is under extreme pressure from the weight of other layers.
Answers
Answer:
I took the science quiz and Its A
Explanation:
HOPE THIS HELPS!
The iron-nickel alloy melts due to hot temperatures. This statement best explains why Earth’s outer core is in liquid form
Where is the outer core?The Earth's outer core is the second innermost layer, located between the inner core and the mantle. It contains mostly iron and nickel, which- due to lower pressure than existing at the inner core- are in the liquid form. The outer core, about 2,200 kilometers (1,367 miles) thick, is mostly composed of liquid iron and nickel because of the high temperature. However, the intense pressure, which increases towards the inner core, dramatically changes the melting point of the nickel–iron, making it solid. The iron and nickel alloy of the outer core is very hot, between 4,500° and 5,500° Celsius (8,132° and 9,932° Fahrenheit).
The outer core is a liquid alloy of mainly iron and nickel. The reason why the core is metal is that the heavy metals sank to the center while the Earth was cooling. The mantle which lies above the core is made of molten rock
correct option is a) The iron-nickel alloy melts due to hot temperatures.
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A football player at practice pushes a 80 kg blocking sled across the field at a constant speed. The coefficient of kinetic friction between the grass and the sled is 0.30. How much force must he apply to the sled
Answers
Answer:
The value is [tex]F = 235.2 \ N[/tex]
Explanation:
From the question we are told that
The mass of the sled is [tex]m = 80 \ kg[/tex]
The coefficient of friction is [tex]\mu = 0.30[/tex]
Generally the force that must be applied to the sled is equal to the frictional force experienced by the sled which is mathematically represented as
[tex]F = m * \mu * g[/tex]
=> [tex]F = 80 * 0.30 * 9.8[/tex]
=> [tex]F = 235.2 \ N[/tex]
How much energy is released by the conversion of 4.2 x 10 kg of mass to energy? How much mass must be converted to energy to produce 1.00 J of energy?
Answers
Explanation:
4.2×+10=42kg
energy/work =
mxacceleration
420joulse
not sure
=42 mass I guess
Which of the following best describes why understanding a watershed and its boundaries is important in designing housing developments along a river?
A
The water contained in a watershed is more likely to become polluted if the soil has high permeability, so it is important to locate all point sources to reduce contamination
B
Watersheds provide habitats for hundreds of marine species, so it is important to protect their feeding and nesting sites when designing housing for humans.
c
Watersheds provide space for cultivating land to produce food and other products, so it is important to avoid locating a housing development on the most fertile land.
D
Surface water and stormwater runoff will drain downstream within the watershed boundaries, so it is important to understand the flow of water through the watershed
Answers
Answer:
d
Explanation:
The watersheds are the major hydrological structures that supports the downstream of surface water and storm water. Hence, option (D) is correct.
The given problem is based on the concept and fundamentals of watershed boundary. The watershed boundary is defined as the topmost elevations surrounding the lake or river segment, such that the drop of water falling outside the boundary will drain to another watershed.
Watersheds are the naturally occurring boundaries that determine into which streams, rivers, and oceans water naturally flows.It is necessary to plot out the concept of watershed because the surface water and storm water runoff will drain downstream within the watershed boundaries.Thus, we can conclude that the watersheds are the major hydrological structures that supports the downstream of surface water and storm water. Hence, option (D) is correct.
Learn more about the watershed boundary here:
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True or false: " The rotation of the earth and revolution of the earth mean essentially the same thing."
Answers
Answer:
FALSE
Explanation:
Rotation is spinning on its axis
Revolution is spinning around the sun
Identify the particle that is NOT a subatomic particle.
es
A)
electron
B)
neutron
C
positron
D)
proton
Answers
Answer:
C
positron
Explanation:
What is the tangential velocity of a record player which makes 11 revolutions in 20 seconds?
Answers
Velocity is defined as rate of change of displacement wit respect to time.
tangential velocity is (11/10)πr , where r is radius of circular track.
Since, tangential velocity is, [tex]=\frac{distance}{time}[/tex]
In one revolution, distance travelled is circumference of circular track.
If radius of circular track is r , then distance travelled in one revolution is, = 2πr
So, 11 revolutions = 11(2πr) = 22πr
Time taken = 20 second
So, tangential velocity = 22πr/20 = (11/10)πr meter per second.
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https://brainly.com/question/14401457
Relative density of mercury is 13600 what does it mean
Answers
Answer:
relative density is the density divided by some reference density.
for liquids like mercury the reference density is most likely water, so
relative density = density mercury / density of water = 13600
A 0.15 kg ball is moving with a velocity of
35 m/s. Find the momentum of the ball.
Answers
Answer:
5.25 kg.m/sExplanation:
The momentum of an object can be found by using the formula
momentum = mass × velocity
From the question we have
momentum = 0.15 × 35
We have the final answer as
5.25 kg.m/sHope this helps you
I need help with science
Answers
Answer:
saaaaame
Explanation:
Any force that resists motion and causes heat
Answers
Answer: Two objects sliding against each other.
Explanation:
The friction between the two surfaces converts kinetic energy into heat.
HELP ASAP!! WILL TRY TO GIVE BRAINLIESTT!!
Please define the prefixes hyper-, hypo-, & iso- AND describe a solution that is hypertonic, hypotonic, & isotonic as well as compare how a living cell reacts when placed in a solution of each of the 3 types.
Answers
Answer:
Hypertonic, isotonic, and hypotonic solutions and their effect on cells. ... There are some different explanations out there. ... Tonicity is a concern for all living things, particularly those that lack rigid cell walls and live in ...
the value of acceleration due to gravity option A is same on equator and poles option B is list on poles option C is list on equator option d increase from pole to equator which is the answer
Answers
Answer:
D. Increases from pole to equator
Explanation:
I majored in Science
A ball of radius R and mass m is magically put inside a thin shell of the same mass and radius 2R. The system is at rest on a horizontal frictionless surface initially. When the ball is, again magically, released inside the shell, it sloshes around in the shell and eventually stops at the bottom of the shell. How far does the shell move from its initial contact point with the surface
Answers
Answer:
[tex]x =\frac{-R}{2}[/tex]
Explanation:
From the question we are told that mass
Thin layer radius [tex]= 2R[/tex]
Generally the expression for ths solution is given as
Xcm =(m*0 =m(-2R))/2m =-mR/(2m)=-R/2
the center of mass will not move at initial state
Considering the center of mass of both bodies
[tex]xcm=\frac{m*x+m*x)}{2m} =x[/tex]
[tex]x =\frac{-R}{2}[/tex]
Therefore the enclosing layer moves [tex]x =\frac{-R}{2}[/tex]
The shell move from its initial contact point with the surface is,
[tex]x =\dfrac{-R}{2}[/tex]
Given-
Radius of the ball is [tex]R[/tex].
the mass of the ball is [tex]m[/tex].
The mass of the thin shell is [tex]m[/tex].
The radius of the thin shell is [tex]2 R[/tex].
For the two bodies with mass [tex]m[/tex], the center of mass can be given as,
[tex]x_{cm}=\dfrac{m_{1} x_{1}+m_{2} x_{2} }{m_{1} +m_{2}}[/tex]
In the given question, the mass of both the bodies are equal and the given distance of center of mass for both bodies are also equal. Therefore,
[tex]x_{cm}=\dfrac{m x_+mx }{m +m}[/tex]
[tex]x_{cm}=\dfrac{2mx }{2m}[/tex]
[tex]x_{cm} =x[/tex]
Distance for center of mass can also be given as,
[tex]x_{cm} =m\times o[/tex]
[tex]x_{cm} =m\times \dfrac{-R}{2m}[/tex]
[tex]x_{cm} =\dfrac{-R}{2}[/tex]
Comparing both the values of the distance of center of mass we get,
[tex]x =\dfrac{-R}{2}[/tex]
Hence, The shell move from its initial contact point with the surface is,
[tex]x =\dfrac{-R}{2}[/tex]
For more about the center of mass follow the link below,
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in a hydraulic press,a force of 200N is applied to a master piston of area 25cm² if the press is designed to produce a force of 5000N,determine the radius of the slave piston
Answers
Answer:
The radius of the slave piston = 14.10 cm
Explanation:
The formula to apply here is that for pressure where ;
Pressure = Force / Area
F₁ /A₁ =F₂/A₂ where ; F₁=200 N , A₁= 25 cm² , F₂ =5000 N ,A₂ =?
Apply values in the equation as ;
200/ 25 = 5000/ A₂
A₂ = 625 cm²
Formula for area is ;
A = πr²
625 = π * r²
625/π = r²
√625/π =r
14.10 cm = r
Find the mass of a copper block with heat capacity 50j/kg,(specific heat capacity of copper=400j/kg)
Answers
−1
C
−1
and L
f
=3.5×10
5
Jkg
−1
Mass of copper block m=2kg
Heat released by the copper block is equal to the heat gained by the ice to melt.
Let the mass of the ice melted be M.
Change in temperature of copper block ΔT=500−0=500
o
C
∴ mS(ΔT)=ML
f
Or 2×400×500=M×3.5×10
5
⟹ M=1.14kg
Which of the following best describes the difference between type a and type b
Answers
A golf ball is sitting on a tee. The ball is struck with a golf club and flies
through the air. How does the force on the club compare with the force on the
ball when momentum is transferred between the club and ball?
Answers
Answer:
c i kn now it is
Explanation:
If you have 100 kg of each of these substances, which would require the most energy to increase its temperature by 25 Kelvin?
A. Iron
B. Carbon
C. Rubber
D. Air
Answers
Answer:
iron
Explanation:
An electrically charged atom is called an
Answers
Answer:
It's called an ion. Excuse me if I'm wrong.
Explanation:
Explication- positive ions are called cations and negative ions are called anions. Atoms have two types of charged particles protons have a positive charge and are found in nucleus Electrons have a negative charge and are found outside the nucleus.
Hope this helps