Answers
Answer:
1. 10.5 Kg
2. s/g
Explanation:
1. Determination of the mass of gasoline
Density of gasoline = 0.7 Kg/L
Volume of gasoline = 15 L
Mass of gasoline =?
The density of a substance is simply defined as the mass of the substance per unit volume of the substance. Mathematically, the density of a substance can be expressed as:
Density = mass / volume
With the above formula, we can obtain the mass of the gasoline as follow:
Density of gasoline = 0.7 Kg/L
Volume of gasoline = 15 L
Mass of gasoline =?
Density = mass / volume
0.7 = Mass of gasoline / 15
Cross multiply
Mass of gasoline = 0.7 × 15
Mass of gasoline = 10.5 Kg
2. Density has various units some are listed below:
I. Kilogram per litre (Kg/L)
II. Kilogram per cubic metre (Kg/m³)
III. Milligram per millilitre (mg/mL)
IV. Gram per millilitre (g/mL)
V. Gram per cubic centimetre (g/cm³)
Considering the options given in the question above, it is evident that second per gram (s/g) is not a unit of density because density is mass per unit volume.
Related Questions
How does a winter jacket keep you warm while a cold winter day and Why .
Please help me
Answers
In colder weather, people usually wear coats when going outside. Coats keep us warm because of the material of the coat. Our body supplies the heat, and the material helps to trap body heat and keeps the heat from escaping into the air. This is what keeps us warm.
A roller coaster car is at the top of a 65.0 m Crest. If the roller coaster car has 987000 J of potential energy what is its mass
Answers
M=Pe/(g*h)
M=987000/(9.807*65)
M= 157.8872 KG
A hiker climbs a hill 400 m high. If he weighs 50 kg
caleulate the work he does in lifting his body to the top of the hill
Answers
Answer:
20 is Solvent this is the answer u divide them
W = Fd cos 0
Energy is the ability to do work.
Work is a scalar quantity, which is usually measured in newton-meters or joules.
Work is 0 when the force is perpendicular to an object's displacement or when the object isn’t displaced.
Is Radioactive decay a way to find the relative age of a rock?
True
False
Answers
What is the relationship between distance and sound wave return time?
Answers
Why was John Paul Jones's victory important in the war? His victory increased France's confidence in the skill of the Continental navy. His victory against a large warship dealt a blow to the Spanish navy. His victory against a superior British foe inspired the American troops.
Answers
Answer:
C. His victory against a superior British foe inspired the American troops.
Explanation:
John Paul Jones is considered the hero in the Revolutionary War. He is known as the Father of the US Navy.
In the Revolutionary War, Jones sided with the American colonists against the British and took hold of naval ships. In 1779, when the British warship Serapis was in conflict with the American warship Bon Homme Richard, Jones plugged the American warship with the Britisher's warship and tossed a grenade into the opponent warship. Thus when Jones was victorious in the war, this boosted the American spirits for the war.
Therefore, option C is the correct answer.
Answer:
c
Explanation:
pls help i’ll give brainliest if you give a correct answer!!
Answers
Answer:
Friction force is the correct answer.
Actually I'm wrong the person who has commented is correct
can someone help me fill in the two boxes.
Answers
Answer:
Explanation:
I believe what you're looking for is :
Opposites
Density
Could be wrong but I think so.
loop od death cause and effect
Answers
Answer:true
Explanation:
hii please help i’ll give brainliest if you give a correct answer please please hurry it’s timed
Answers
Answer:
A
Explanation:
You can rule out c and d since they make no sense but i would say a makes more since than b since your sitting on the chair your putting force on it
Which method of popcorn popping transfers heat into the kernels without any direct
contact (nothing hot touched the kernels)? Explain.
Which method of popcorn popping requires the kernels to move through the heat source
in order to pop. Explain.
Describe another example of an object being heated through conduction.
Answers
Answer:
you plug in and turn on the popper, and then the hot air begins to rise in the popper while cooler air falls. As hot air circulates past the popcorn kernels and so the kernels absorb the hear
what are the standard units of displacement?
Answers
Please help with this question !!!!!
Answers
Answer:
te puedo ayudar pero corazón y estrella
y ando buscando novia por si quieres ser mia
In order to generate electricity from mechanical energy, one essential element needed to
transform the energy into electrical energy is
A.an insulator
B.a magnet or a magnetic field
C. a plastic sphere
D. a light bulb
Answers
B: q magnet or a magnetic field
An example of a single displacement reaction is
Answers
Answer:
CL2+H2O----------->2HCL+[0]
i need help asap
The downward force of gravity causes _______ displacement of an object, but the force of gravity does not affect the ________ component of motion.
a.
negative, horizontal
c.
negative, vertical
b.
positive, vertical
d.
None of the above.
Please select the best answer from the choices provided
A
B
C
D
Answers
Answer:
The correct answer is AExplanation:
I hope it helps ❤❤
hii please help i’ll give brainliest if you give a correct answer please please hurry it’s timed
Answers
Answer:
Sorry I'm wrong The person above is correct.
I tried.
Answer:
The net force on the brick is 0N and the brick remains at rest.
Explanation:
Net force = 5N - 5N
= 0N
Help with either I don’t understand this I know W=f*d but don’t get how it applies here
Answers
Answer:
5) Displacement = +3.125 m
Displacement is in the same direction as the force vector.
6) Force = -53.89 N
Force is in an opposite direction relative to the displacement.
Explanation:
5) We are given;
Force; F = 160 N.
Workdone; W = +500 J
Now, formula for workdone is;
W = Force × displacement
Thus, displacement = Work/force
Displacement = 500/160
Displacement = +3.125 m
Thus, displacement is in the same direction as the force vector.
6) We are given;
Displacement; d = 18 m.
Workdone; W = -970 J
Like in the first answer above,
Workdone = Force × Displacement
Thus;
Force = Workdone/Displacement
Force = -970/18
Force = -53.89 N
Since force is negative and displacement is positive, it means force is in an opposite direction relative to the displacement.
A 2-kg mass placed 30-cm to the left of the fulcrum is balanced by a 2-kg mass placed ______ cm to the right of the fulcrum.
Answers
Answer:
30 cm
Explanation:
0.06 or [tex]\frac{1}{15}[/tex]
What is the effort and load arm?The lever has two “arms”:
The load arm is the portion of the lever directly connected to the load.
The effort arm is the portion of the lever to which we apply the effort, or input force.
The formula of the mechanical advantage(MA) of a lever is given as
MA = load/effort.
Given,
load = 2kg , effort = 30cm
MA = [tex]\frac{2}{30}[/tex] = [tex]\frac{1}{15}[/tex]
MA = 0.06 cm
Therefore,
A 2-kg mass placed 30-cm to the left of the fulcrum is balanced by a 2-kg mass placed 0.06 cm to the right of the fulcrum.
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An ocean wave has a frequency of 3 waves per second, and the waves are
5 meters apart. What is the speed of the wave?
Answers
Answer:
v = λf = (4 m)(3 Hz) = 12 m/s
Explanation:
Do not understand, need help doing this
Answers
Answer:
I found it would be quadrupled if it was doubled
Explanation:
The kinetic energy of an object is the energy possessed by the object due to its motion. It is given by:
where
m is the mass of the object
v is its speed
From the equation, we notice that the kinetic energy is:
Directly proportional to the mass
Proportional to the square of the speed
In this problem, the initial kinetic energy of the object is
K = 100 J
Later, the speed of the object is doubled:
v' = 2v
Therefore, the new kinetic energy will be
So, we see that the kinetic energy will quadruple.
An object accelerates at 8 m/s^2 when a force of 40 Newtons is
applied to it. What is the mass of the object? (Use formula: m=Fla)
Answers
Answer:
5 kg
Explanation:
Acceleration = 8 m/s^2
Force = 40 N
Force = mass * acceleration
mass = force / acceleration
mass = 40 / 8
mass = 5 kg
Help me plz. I'll mark brainiest
Answers
Answer:
I'm pretty sure question one is D. Anatomy and physiology
Explanation:
normally you'd have to learn about Physiology before you move on to therapy from my knowledge...
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A car advertisement states that a certain car can selerate from rest to 20 m/s in 7 seconds. Find the car's average acceleration
Answers
Answer:
2.86m/s²
Explanation:
[tex]\boxed{average \: acceleration = \frac{change \: in \: velocity}{time} }[/tex]
Car's average acceleration
[tex] = \frac{20 - 0}{7} \\ = 2.86 \: m/ {s}^{2} \: (3 \: s.f.)[/tex]
The reason why the change in velocity over time is average acceleration is because we are finding the total difference in velocity and dividing it against the total duration. This means that the acceleration of the car can vary throughout the 7 seconds (may not be a constant acceleration) but on average, the car's acceleration 2.86m/s², to 3 significant figures.
Change in velocity
= v -v₀
= final velocity -initial velocity
Since the car is at rest at the beginning, the initial velocity (v₀) is 0m/s.
Answer:
Given :-Acceleration = 20 m/sTime = 7 secTo Find :-Average acceleration
Solution :-As we are already knowing that
[tex] \sf Acceleration_{Avg} [/tex] = TA/T
TA = Total acceleration
T = Time
A = 20/7
A = 2.85 m/s²
if you poured oil and water into a beaker , which liquid would be on top and which would be on the bottom ? How would the densities of the liquids compare with their positions in the beaker ? Explain
Answers
Answer:
oil floats in water due to the fact that it is less dense. since the water is more dense, it is basically heavier, and heavier items always sink, while lighter items float, the same can be said about liquids. denser liquids will sink while less dense items will float.
What is the weight of an object a mass of 90.0kg?
Answers
Explanation:
it would be 198.4
you're welcoms
Any change in an object's velocity is caused by
A. the object's mass
B. a balanced force
C. an unbalanced force
D. the object's direction
Answers
Answer:
C. an unbalanced forceExplanation:
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you have to match the letters in the picture to the list of energy types
Answers
Answer:
you have to match the letters in the picture to the list of energy types
Which of the following statements about transition metals is true?
a.
They are never found uncombined in nature.
b.
They include familiar metals such as gold, silver, copper, and nickel.
c.
They are so soft that they can be cut with an ordinary knife.
d.
They are the most reactive of all the types of metals.
Answers
Answer:
b.They include familiar metals such as gold, silver, copper, and nickel.
They include familiar metals such as gold, silver, copper, and nickel.
Transition metals are like main group metals in many ways: They look like metals, they are malleable and ductile, they conduct heat and electricity, and they form positive ions.
What are metals ?"A metal is a material that, when freshly prepared, polished, or fractured, shows a lustrous appearance, and conducts electricity and heat relatively well. Metals are typically malleable or ductile."
What are transition metals ?"Transition metals are placed between s−block and p−block elements in periodic table. They are termed as d-block elements. These metals are unstable and exhibit transitional behavior between s block and p block elements, hence the name transition metals."
What is electricity ?"Electricity is defined as the rate of flow of charges in a conductor."
Electricity is defined as the effects of an electric charge. An example of electricity is the force that powers a light bulb. An example of electricity is lightning. An example of electricity is static electricity, the buildup of electric charges on an object's surface.
Know more about transition metals here
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Which of the boxes on the electromagnetic spectra shown below contains all
the frequencies within the visible range?
Answers
Answer:
C.
Explanation:
C. has the box on the colors, which is the rainbow because it is the visible light we are able to see.
Answer:C
Explanation:
