Answer:
high temperature and low pressure
Explanation:
Real gases have intermolecular forces of attraction between them hence they can be liquified. However, gases approach ideal behavior at high temperature and low pressure.
According to the kinetic theory of gases, gases molecules move at incredibly high speeds and exhibit no intermolecular interaction because the gas molecules are isolated from each other.
At high temperature and low pressure, gas molecules are found to possess maximum kinetic energy. They move with a very high velocity and have minimal intermolecular interaction between them in accordance with the proposition of the kinetic theory of gases.
which substance is an acid ?
Answer:
According to Arrhenius definition, an acid is a substance that releases hydrogen ion or hydronium ion.
there are also other definition like bronsted and lewis.
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solve the horizontal component
Answer:
To find the horizontal component, we multiply the magnitude of the vector by the cosine angle referenced to the horizontal. To find the vertical component, we do the same thing, but take the sine angle.
What is Anatomy & Physiology in 5 words?
Answer:
Anatomy is the study of the structure and relationship between body parts.
Physiology is the study of the function of body parts and the body as a whole.
Explanation:
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Since the investigative question has two variables, you need to focus on each one separately. Thinking only about the first part of the question, mass, what might be a hypothesis that would illustrate the relationship between mass and kinetic energy? Use the format of "if…then…because…” when writing your hypothesis.
Explanation:
The formula of kinetic energy is K.E= m[tex]v^{2}[/tex]/2 , where m is the mass and v is the velocity. According to the formula, if we double the mass, the kinetic energy will also double then we can say the Kinectic energy is directly proportional to the mass.
Answer:
Sample Response: If the mass of an object increases, then its kinetic energy will increase proportionally because mass and kinetic energy have a linear relationship when graphed.
Explanation:
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what give negative acceleration ?
Answer:
But negative acceleration means that the rate of change of velocity is negative or velocity decreases. Example: (1) When we apply brakes in a moving car, then negative acceleration acts on it and the car stops. (2) When we throw a ball upwards, then also negative acceleration acts on it.
Explanation:
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MATHEMATICALLY A NEGATIVE ACCELERATION MEANS YOU WILL SUBTRACT FROM THE CURRENT VALUE OF THE VELOCITY.
What does physics means to you. (own words)
Answer:
the physical properties and phenomena of some thing.
In explannation
Physics is a branch of science. It is one of the most fundamental scientific disciplines. The main goal of physics is to explain how things move in space and time and understand how the universe behaves. It studies matter, forces and their effects. The word physics comes from the Greek .
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blocks x and y are attached to each other by a light rope and can slide along a horizontal surface. Mass of block x is 10 kg and that of block y is 5 kg. the magnitude of force of friction on blocks x and y is 8.0 N and 4.0N respectively. Find the action-reaction forces that the blocks exert on each other if an applied force of 40 N(right) acts on block per illustration below.
Blocks x and y exerts action-reaction forces on each other with 146.1 N and 53.1 N respectively.
The given parameters:
mass of block x = 10 kg
mass of block y = 5 kg
magnitude of the frictional force of block x = 8 N
magnitude of the frictional force of block y = 4 N
the applied force to the right = 40 N
To find:
the action-reaction forces that the blocks exert on each otherThe block y pulls block x to the left with the following reaction forces;
Force of block y = force due to its own weight + frictional force
Reaction Force of block y = mg + 4 Nwhere;
g is the acceleration due to gravity = 9.81 m/s²
Reaction Force of block y = (5 x 9.81) + 4Reaction Force of block y = 49.1 + 4Reaction Force of block y = 53.1 NThus, block y reacts on block x with a force of 53.1 N
The block x acts on block y towards the right direction with following forces;
Force of block x on y = force due to its own weight + frictional force + applied force to the right
Force of block x on y = (mg) + (8 N) + (40 N)Force of block x on y = (10 x 9.81) + (48)Force of block x on y = 98.1 + 48Force of block x on y = 146.1 NThus, block x acts on block y with a force of 146.1 N
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How effectiveness of a small force is increased when action area of force is
reduced?
Answer:
The force is proportional to the area, for if we increase the area but keep the number of molecules per cubic centimeter the same, we increase the number of collisions with the piston in the same proportion as the area was increased.
Explanation:
more area =more space = more free for molecules = less pressure = less force.
what is the Ramsar convention?
Total distance between Karachi and Hyderabad is 120 km , if a car speed is 40 km/h, In how many hours it can travel back to Hyderabad
it takes 6 hours to travel back to Hyderabad
The mass of an object is 4kg and it has a density of 5gcm^-3. what is the volume
Answer:
density = mass/ volume
5=4000/ volume
volume=4000/5
volume=800 cm^-3
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during a journey, a car travels at 40 km in 2.5 hours, next 62 km in 3 hours, then took a break for 30 minutes, again travelled the last 120 km in 3.2 hours. calculate the average speed of the car during the journey.
The force exerted by the earth on a body is called ______of a body.
Answer:
The force exerted by the earth on a body is called gravitational of a body.
i think this is the answer
Answer:weight
Explanation:
Q2.
1.0 kg of ice at -10°C is added to 10 g of water at 0°C.
(a)
Find the final temperature of the mixture. (The specific latent heat of fusion of
ice is 336 J/g and the specific heat capacity of ice is 2000 J kg K-1)
Please help
Answer:
gsbddgshdhsghhdhdhvvs
please answer me fast
Answer: i think c
Explanation:QA: “What is ordinary glass made of ?”
Glass is mostly silica, or silicon dioxide, present as quartz in many types of sand. Pure silica forms a highly transparent glass, but has a very high melting or softening temperature, around 1700°C. Even at such high temperatures it is highly viscous and difficult to work. Its use is largely confined to applications requiring high transparency to ultra-violet and infra-red radiation, stability at elevated temperatures or low thermal expansion coefficient.
“Ordinary glass” windows and drinking vessels are typically made from soda-lime glass, containing silica with around 25% sodium, calcium and other oxides, which together reduce the softening temperature to roughly 500–600°C
V = ?
d= 15 m left
t = 5 s
What is the velocity?
Answer:
Velocity= 3[tex]ms^{-1}[/tex]
Explanation:
Formula to find velocity = Displacement/time taken
therefore, velocity= 15/5 ➤ Velocity = 3 [tex]ms^{-1}[/tex]
(A stone dropped freely from 72 m height of the tower and reaches to the ground in 6 seconds. What is acceleration due to gravity of that stone. At what condition does the acceleration due to gravity becomes zero.)
Answer:
As the stone is falling totally under the influence of gravity and toward the earth surface the acceleration is due to gravity and positive. Hence acceleration due to gravity,g is 4m/s²
How many millilitres are there in one dm3
Answer:
there is 1000ml in 1dm3
Explanation:
Answer:
There are 1000 millilitres in one dm3 .
Your help will really be great plz help me
5 N
Archimedes' Principle
25 N
A force of 50 N stretches a string by 4 cm,calculate the elastic constant.
Answer:
50/0.04= answer
could someone give me lessons for pressure?
Explanation:
Pressure is defined as the physical force exerted on an object. The force applied is perpendicular to the surface of objects per unit area. The basic formula for pressure is F/A (Force per unit area). Unit of pressure is Pascals (Pa). Types of Pressures are Absolute, Atmospheric, Differential, and Gauge Pressure.
........................
Answer:
14°F = 263.15 K
31°F = 272.594 K
71°F = 294.817 K
35°F = 274.817 K
Explanation:
Use the formula 273.15 + ((°F–32)•5)/9
A scientist measures the light from a distant star
at 525 nm. The constant for Wien's
displacement law is 2.9 x 10-3 m K. What is the
approximate temperature of the star in Kelvins?
A) 1500 K
B) 180,000 K
C) 1.5 K
D) 5500 K
The approximate temperature of the star as determined is D) 5500 K.
The Wien's displacement law relates the maximum wavelength of a body to its absolute temperature. Wien's displacement law states that:
λ = [tex]\frac{b}{T}[/tex]
where λ is the maximum wavelength of the body, b is the constant of proportionality and T is the absolute temperature.
Thus from the given question, λ = 525 nm (525 x [tex]10^{-9}[/tex]), and b = 2.9 x [tex]10^{-3}[/tex] mK.
So that,
525 x [tex]10^{-9}[/tex] = [tex]\frac{2.9*10^{-3} }{T}[/tex]
Make T the subject of the formula to have;
T = [tex]\frac{2.9*10^{-3} }{525*10^{-9} }[/tex]
= 5523.81
T = 5523.81 K
T ≅ 5500.00 K
The approximate temperature of the star in Kelvin is 5500 K.
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A block of ice is floating in a cup of water. It is 0.5 cm above the water surface and its length
and width are 2cm each. Given that the density of ice is 900 kgm 3 and the density of the
water is 1000 kgm3, find the volume of the ice block.
0.5 cm
d cm
2 cm
2 cm
Answer:
Let the volume of the cube be V and the fraction of cube outside water be f.
Thus, volume of ice inside water = volume of water displaced =(1−f)V
Under equilibrium,
Weight of ice = Weight of water displaced
⟹Vρ
ice
g=(1−f)Vρ
water
g
⟹(1−f)=
10
9
⟹f=
10
1
Thus, the percentage of volume outside water =10%
Why do scientists not use US customary units when reporting their data?
One of the scientist's jobs is to report the results of his experiments to all the other scientists in the world.
There isn't a single real science shop anywhere in the world that uses the US customary system of units. Not one.
Even in the measly three countries that use it for measuring carpet, pumping gas, and weighing fish ... Myanmar, Liberia, an the USA ... the scientists do their work in the SI/MKS/metric system.
The mass of a body:
(a) decreases when accelerated
(b) increases when accelerated
(c)decreases when moving with high velocity
(d)none of above
define 1 second time
Answer:
define 1 second time
One second is the time that elapses during 9,192,631,770 (9.192631770 x 10 9 ) cycles of the radiation produced by the transition between two levels of the cesium 133 atom. ... One second is equal to 1/86,400 of a mean solar day.
Answer:
One part of 86400 part of a day is called one second time.
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Find the amount of force required to move an object of 1200 kg at a velocity of 54 km/hr?
The amount of force required to move the object is 64,800N
The first step is to write out the parameters given in the question;
Mass= 1200 kg
Velocity= 54 km/hr
The amount of force required to move the object can be calculated as follows;
Force= mass × velocity
= 1200×54
= 64,800N
Hence the amount of force that is required to move the object is 64,800N
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400 N multiply by x = 100 N x 2M
Answer:
x = 2m
400N*x = 100N * 2M
400N*x = 200Nm
x = 400N/200Nm = 2m
3. Assume that the elastic bands on a slingshot work like a spring with a
spring constant of 250 N/m. If you have to pull back with 100 N of stretch
(spring) force to fully stretch the bands, how far will the elastic bands stretch?
Please help me
As you stretch the band a distance x, the force you need to exert has a magnitude of (250 N/m) x.
So if 100 N is required to stretch it to maximum length, then this length is x such that
100 N = (250 N/m) x ==> x = (100 N)/(250 N/m) = 0.4 m
Answer:
0.6
Explanation:
I got it right
