the father has to sit 0.5meter away from the kid because he is a 3/4 heavier that the kid
what is density?And It's SI unit.
Answer:
Density is defined as mass per unit volume. Hence its SI unit is: kg/m3
Explanation:
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What is the weight of a car that has a mass of 1250000 g
[tex]\\ \rm\hookrightarrow 1250000g=1250kg[/tex]
Mass=1250kgAcceleration=10m/s^2[tex]\\ \rm\hookrightarrow Force=Mass(Acceleration)[/tex]
[tex]\\ \rm\hookrightarrow Force=1250(10)[/tex]
[tex]\\ \rm\hookrightarrow Force=12500N[/tex]
The weight of the car that has a mass of 1250000 g would be 12262.5 N
What is Newton's second law?Newton's Second Law states that The resultant force acting on an object is proportional to the rate of change of momentum.The mathematical expression for Newton's second law is as follows
F = m*a
where F represents the force applied
m is the mass of the object and a is the acceleration of the object .
The major difference between the mass and the weight of an object is that mass of the object is constant throughout the universe while the way it can vary from the positional situation of the object in the universe for example the weight of the weight of the object in the earth would be different than the weight of the same object in some other planet for example The weight of an object on the Mars would be different than earth.
The weight of any object use the multiplication of the mass and the gravity of the respective planet in our case the weight is measured with respect to the gravity of the earth
Weight = Mass*(acceleration due to gravity)
W= m*g
The value of g for the earth is 9.81 m/s²
As per the given problem the car that has a mass of 1250000 g
1000 g = 1 kg
1250000 = 1250 kg
Weight = 1250*9.81
=12262.5 N
Thus ,the weight of the car that has a mass of 1250000 g would be 12262.5 N
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Convert the following as instructed:
i.340 cm into m
ii.67 kg into g
iii.2 days into second
iv.86400 second into day
Prove that the acceleration due to gravity is independent to the mass of the falling body.
Answer:
½mv²=mgh
g=½(V²/h)
Explanation:
When an object is held at a height, it posses gravitational potential energy which is mgh, where m= mass, h=height, g=acceleration due gravity
When the object is dropped, the potential energy will be converted to kinetic energy which is ½mv², where V=velocity at which the object moves.
V=∆h/t, ∆h is change in height with respect to time.
½mv²=mgh
Mass cancel out,
g=v²/2h
This implies that g does not depend or is not affected by mass. Hence heavy object and light object will reach the ground at the same time when dropped from the same height. When air resistance is negligible.
Different between Atmosphereric Pressure and Liquid Pressure.
Answer:
Air pressure or atmospheric pressure is the pressure as the force exerted by the collisions of particles in the air. The key difference between air pressure and liquid pressure is that air pressure allows the gaseous state of matter to be compressible, whereas liquid pressure makes a liquid incompressible
Explanation:
Air pressure or atmospheric pressure is the pressure as the force exerted by the collisions of particles in the air. The key difference between air pressure and liquid pressure is that air pressure allows the gaseous state of matter to be compressible, whereas liquid pressure makes a liquid incompressible
In which group of elements does tellurium (Te) belong?
(1 point)
alkali metals
metalloids
lanthanides
transition metals
Answer:
metalloids
Explanation:
Periodic Table
A Periodic table is an arrangement of chemical elements in order of increasing atomic number.
Metalloids: Metalloids have properties that are midway between metals and non metals
Tellurium is a chemical element with symbol Te and atomic number 52. Classified as a metalloid, tellurium is a solid at room temperature.
Properties
Atomic Mass
127.6u
Oxidation States
+6, +4, -2
Year Discovered
1782
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Explain how can a ripple tank be used to view wave pattern.
Answer:
when you push up and down the pencil right in the middle of the water tank. it will produce ripples. If seen at the perfect angle you will observe the waves
Explanation:
A charge feels a 7.89 x 10-7 N force when it moves 2090 m/s at a 29.4° angle to a 4.23 x 10-3 T magnetic field. What is the amount of the charge?
We have that the amount of the charge q is
[tex]q=1.8*10^{-7}[/tex]
From the Question we are told that
Force [tex]F=7.89 x*10^{-7}[/tex]
Velocity [tex]V=2090m/s[/tex]
Angle [tex]\theta=29.4[/tex]
Magnetic field [tex]B=4.23 * 10^{-3} T[/tex]
Generally, the equation for Force F is mathematically given by
[tex]F=qVBsin\theta\\\\q=\frac{F}{VBsin\theta}[/tex]
[tex]q=\frac{7.89 x*10^{-7}}{4.23 * 10^{-3} T*sin29.4*2090m/s}[/tex]
[tex]q=1.8*10^{-7}[/tex]
In conclusion
The amount of the charge q is
[tex]q=1.8*10^{-7}[/tex]
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From the question, the given charge moving within the magnetic field would have a value of 1.82 x [tex]10^{-7}[/tex] C.
A charge is either a positively or negatively charged particle. When a charge is moving through a magnetic field, it would experience a force which depends on the amount of the charge, its speed, the magnetic field strength and angle. The force on a charge in a magnetic field can be determined by:
F = qvBSin θ
where: q is the charge, v is its velocity/ speed in the field and θ is the angle of deflection of the charge.
Given that: F = 7.89 x [tex]10^{-7}[/tex] N, v = 2090 m/s, B = 4.23 x [tex]10^{-3}[/tex] T and θ = 29.4°.
Thus, the amount of the charge can be determined by;
q = [tex]\frac{F}{vBsin O}[/tex]
= [tex]\frac{7.89*10^{-7} }{2090*4.23*10^{-3}* Sin 29.4 }[/tex]
= [tex]\frac{7.89*10^{-7} }{4.340}[/tex]
q = 1.818 x [tex]10^{-7}[/tex]
q = 1.82 x [tex]10^{-7}[/tex] C
Therefore, the amount of the charge that moved within the magnetic field is 1.82 x [tex]10^{-7}[/tex] C.
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Does the following word describe a theory, law, or both
“Complex”
A) LAW
B) THEORY
C) BOTH THEORY AND LAW
Answer:
the answer is b: theory
Explanation:
in science theory can be defined as a scientific idea that uses logic based on wisdom, research, observation, and experience
What's Centripetal force................
Answer:
a force that acts on a body moving in a circular path and is directed towards the centre around which the body is moving.
Answer:
A centripetal force is a force that makes a body follow a curved path. Its direction is always orthogonal to the motion of the body and towards the fixed point of the instantaneous center of curvature of the path.
im offering 100 point to whoever can give me the best advice on boys you possible can. so shoot, tell me everything and anything about it.
¿Qué ocurre como consecuencia de las corrientes de convección en la astenosfera?
Respuesta:En la astenosfera existen lentos movimientos de convección que explican la deriva continental. Además, el basalto de la astenosfera fluye por extrusión a lo largo de las dorsales oceánicas, lo cual hace que se renueve y expanda constantemente el fondo oceánico. :D
A parachute is driven toward east direction with a speed of 20ms-1. A ball is thrown out with the speed of 4ms-1. What wil be the speed of the ball after it has been thrown out of parachute.
We have that the ball after it has been thrown out of parachute is
[tex]V_t=24ms^{-1}[/tex]
From the Question we are told
Parachute Speed [tex]v= 20ms^-1[/tex]
Ball Speed [tex]v= 4ms^{-1}[/tex]
Generally the equation for the resultant speed of the ball is mathematically given as
[tex]V_t=V_1+v_2\\\\v_t=20+4[/tex]
[tex]V_t=24ms^{-1}[/tex]
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A force of 10N makes an angle of 30 degree with y-axis. The magnitude of X component will be?
A space station worker found herself floating free 100 meters from the space station because her safety line became unhooked
Answer:
Explanation: is that suppose to be the question or are you just saying?
Two forces P and Q acting at a point at an angle have their resultant
(2n + 1)√P2 + Q2 and when at an angle (90° - ),the resultant is(2n - 1)√P2 + Q2.
Show that tan = (n - 1)/( n + 1).
Answer:
Answer is given in this paper.
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2. What is an example of a question that cannot be solved using science?
Answer:
How did life begin on earth?
Explanation:
this is an example of a question that cannot be solved or why do we sleep too cannot be solved
Answer:
How did life on earth originate?
Explanation:
While there are many views on how life on earth started, especially from a religious stand point, scientists think this idea is "irrational". This is probably because it doesn't make sense how a higher power could create everything that we see on earth today from nothing. While they have tried to create simulations on how life could have possibly formed, they have gotten no answer.
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Which statement describes the relationship between bond strength and the melting and boiling points of a substance? A. As the force between the particles increases, the melting and boiling points also increase. O B. As the force between the particles increases, the melting point decreases and the boiling point increases. O C. As the force between the particles increases, the melting and boiling points decrease. O D. As the force between the particles increases, the melting point increases and the boiling point decreases. SUBMIT
Answer:
a
Explanation:
In a molecule of lithium sulfide, there are two atoms of lithium and one atom of sulfur. Which statement about lithium sulfide is correct?(1 point)
The atoms in lithium sulfide are held together by bonds.
A molecular model of lithium sulfide would have two spheres.
The chemical formula for lithium sulfide is LiS2.
Both lithium and sulfur form positive ions.
Lithium sulfide is a compound and the atoms are held together by bonds.
What is a compound?Compound is defined as a chemical substance made up of identical molecules containing atoms from more than one type of chemical element.
Molecule consisting atoms of only one element is not called compound.It is transformed into new substances during chemical reactions. There are four major types of compounds depending on chemical bonding present in them.They are:
1)Molecular compounds where in atoms are joined by covalent bonds.
2) ionic compounds where atoms are joined by ionic bond.
3)Inter-metallic compounds where atoms are held by metallic bonds
4) co-ordination complexes where atoms are held by co-ordinate bonds.
They have a unique chemical structure held together by chemical bonds Compounds have different properties as those of elements because when a compound is formed the properties of the substance are totally altered.
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what is momentum?????
Answer:
[tex]momentum \: is \: the \: force \: or \: speed \: of \: the \: movement \\ equation \\ momentum = mass \times change \: in \: velocity \\ thank \: you[/tex]
ram takes 2 minutes to cover a distance of 600 meter. calculate his speed
what is molecular formula give short answer
Explanation:
molecular formula consists of the chemical symbols for the constituent elements followed by numeric subscripts describing the number of atoms of each element present in the molecule. The empirical formula represents the simplest whole-integer ratio of atoms in a compound.
Answer:
The symbollic representation of a molecule of an element or a compound present in a molecule is called molecular formula.
For example: molecular formula of sodium chloride is NaCl.
principle of simple Machine
Answer:
Effort×Effort distance = load× load distance
Answer:
Renaissance scientist
A car has steady speed of 8 m/s .How far
does the car travel in 8s
Answer:
Explanation:
Distance traveled = steady speed * time duration = 8m/sec * 8 sec = 64 meters
Answer:
64 m
Explanation:
Multiply 8 m by 8.
Can someone tell me which is which on what i put i dont know what i should put
Which structure defines the sulfhydryl functional group?(1 point)
SOH
OH
SH
SH2
Answer:
the correct answer is
"SH"
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The sulfhydryl functional group is shown by -SH.
The sulfhydryl functional group is known by several other names such as; thiol, mercapto or sulfanyl.
The sulfhydryl functional group has the structure -SH. The sulphur atom bears two lone pairs which is also important in studying the chemistry of this functional group.
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Can aurora be found in other planets?
Answer:
Yes
Explanation:
Any planet with a sufficiently dense atmosphere that lies in the path of the solar wind will have aurora. It has been discoveres in planets like Jupiter, Saturn, etc.
Answer:
yes
Explanation:
The airplane refuels between City A and continues on to City B. It travels at an average speed of 733.9 km/h. If the trip takes 2.4 hours, what is the flight distance between City A and City B? Answer in km
Answer:
733.9× 2.4
1761.36
Explanation:
The airplane refuels between city A and continues on to city B. It travels at an average speed of 733.9km/h. If the trip takes 2.4 hours, what is the flight distance between city A and city B?
0.054x2.33x90............
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What type of evidence is needed for a hypothesis to be supported or not supported?
O demonstrative evidence
O observational evidence
O physical evidence
O circumstantial evidence
Answer:
Answer in Observational evidence (b)
The evidence needed to formulate a hypothesis is observational evidence. From keen observations, we are formulating a scientific hypothesis.
What is hypothesis ?Hypothesis is a plausible scientific statement which predicts a process or result of an experiment based on observations. Hypothesis can be made from well established scientific records also.
Some are formulating hypothesis based on some intuitions, while some others are formulated based on inductions or deductions. An experiment starts from a clear cut hypothesis.
A hypothesis must be testable, falsifiable. A scientific hypothesis must be based on a strict observation and for a considerable time and the observations must support for the statement derived for the solution.
Hence, the evidence is needed for a or a hypothesis to be supported or not supported is observational evidence.
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