The best combination of layers that would work best for this purpose is an inner core of steel, no air gap, and an outer layer of glass. Option A is correct.
Thermal mugs have the ability to maintain the internal body temperature and heat of their container. For the heat to be maintained for an extended period of time. The internal core must be lined with steel because it radiates less heat compared to the glass. The steel also has high conductivity and lesser specific heat to keep drinks hot for a long period of time.
Therefore, we can conclude that for thermal mugs to keep drinks hot for as long as possible, the inner core must be lined with steel, no air gap, and contain an outer layer of glass.
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Answer:
A
Explanation:
a stone is dropped down an empty mine shaft. it takes 3 seconds to reach the bottom. assuming that the stone falls from rest and accelerates at 10m/s^2, calculate.
a) the maximum speed reached by the stone before hitting the bottom.
b) the average speed of the stone in flight.
c) the depth of the mine shaft.
Answer:
I think A. I had a similar question
Explanation:
What is needed to complete the equation representing cellular respiration?
+ Oxygen - Carbon Dioxide + Water + Energy
O Glucose
Nitrogen
O Sunlight
ОАТР
Answer is sunlight
Explanation :
Answer:
glucose is needed
Explanation:
I just learnt it last week and here is what it says in my notes.
Oxygen is in,
water is in,
carbon dioxide is in,
engery(which is sunlight) is in,
what is not in is glucose.
HELP me please !!!!
Is the answer 0.055 seconds? (Only problem 13)
Answer:
155÷8.5
=18.235294117647
what characteristic feature do all anxiety disorders share?
Answer:
Something they all share is excessive worry that disturbs their normalized living style.
True or false: Electronic machines with no moving experience friction and get hot because electricity is moving through wires
Answer:
true..............yh
HELPPPP
A man is trying to push a box across a table. He pushes on the box with 5 N and the
table provides a frictional force of 1 N. What will be the net force on the box?
1) 4 N
2) 5 N
3) 6 N
4) Not enough information has been given
Answer:
4 Newton
Explanation:
because you minus 1 Newton from 5 newton
The net force on the box is equal to 4N. Therefore, option (1) is correct.
What is the net force?The net force can be described as the vector sum of forces acting on a particle or object. The net force can be defined as a single force showing same the effect of the original forces on the particle's motion. Net force gives the same acceleration as all those actual forces together.
The net force becomes the resultant force. It has the same effect on the rotational motion as all actual forces taken together by the object. Force is a vector quantity as it has a magnitude and a direction.
In the given problem, the applied force is in the opposite direction of the frictional force so we can find the net force by subtracting these two forces.
Given, the applied force to push the box = 5N
The frictional force on the box, = 1 N
The net force on the box = 5N + (-1N) = 4N
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If the ambient temp. is 75 F, what is it Centigrade?
Explanation:
We know
C/5 = F -32/9C/5 = 75 -32/9C/5 = 43/9C ≈ 25°Cfind the current and voltage across each resistor in the given circuit.
Answer:
R1, R4: 1.3433 VR2: 0 VR3: 6.3134 VExplanation:
The resistor R2 is shorted out, so is not in the circuit. The remaining resistors are in a series circuit with a total resistance of ...
R1 +R3 +R4 = 1k +4.7k +1k = 6.7k
The current is the ratio of the applied voltage to this total resistance:
I = V/R = (9 v)/(6.7k) ≈ 1.3433 mA
The voltage across each resistor is the product of this current value and the resistance:
R1 voltage = (1 kΩ)(1.3433 mA) = 1.3433 volts
R2 voltage = 0
R3 voltage = (4.7 kΩ)(1.3433 mA) = 6.3134 volts
R4 voltage = (1 kΩ)(1.3433 mA) = 1.3433 volts
A 8 kg brick is sitting on a frictionless table. If a 60 N horizontal force is applied to the brick and it accelerates at 2 m/s2, what will be the force of friction
a.24
b.44
c.0
d.600
What force prevents a machine from having 100% efficiency? A. Magnetic B. Electric O C. Friction O D. Gravity
Answer:
I believe it would be C ? my apologies if I'm wrong.
In the free-body diagram, the magnitude of the normal force is 40 N, the friction force is
25N, the net force is 80N: What is the magnitude of the applied force?
Answer:
Explanation:
F = 80 + 25 = 105 N
If the strength of the sun's magnetic field decreased from its current level, why would the temperature of sunspots increase?
Magnetic field lines emerge from one sunspot and re-enter at the other spot. Also, there are more sunspots during periods of increased magnetic activity. At ...
The temperature of sunspots increases because magnetic field lines emerge from one sunspot and reappear in another. During periods of increased magnetic activity, there are also more sunspots.
What is the sun's magnetic field?The magnetic field of the sun has two poles, similar to a bar magnet. Every 11 years, at the peak of the solar activity cycle, the poles flip.
The magnetic field is carried away from the sun's surface and through the solar system by a solar wind made up of charged particles. The sun is more like a fluid than a solid ball.
Thus, the magnetic field lines emerge from one sunspot and reappear in another. During periods of increased magnetic activity, there are also more sunspots.
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If a person weighs 160 Newtons on Earth, what is their weight in pounds on Earth?
A. 27
B. 36
C. 712
D. 534
Answer:
B. 36 lb
Explanation:
m = 160/9.8 = 16.3 kg
16.3 kg ( 2.205 lb/kg) = 36 lb
Assuming that the slug's body is 3% salt, what is the most likely prediction that would result from placing the slug into a 6% salt solution?
Answer: As i know, please see the Explanation
Explanation:The cell contains 3% salt, so we can safely assume that it contains 100%−3%=97% water.
Three boxes are stacked on top of a cart. As the cart is moving, it comes to an abrupt stop. The boxes fall forward off of the cart. Explain why the boxes fell forward.
Making simplificafions, such as neglecting friction or not including all particles involved in an interaction, often makes computational models less accurate. Why are these simplifications made?
1. All initial values entered into the model are simply best guesses or estimates. By including more factors, more estimates are included and the inaccuracies compound as a result.
2. Simplifications actually tend to make models more accurate, not less accurate, because the simpler the model, the less chance there is for calculation error or other mistakes. 3. Computational models don't need to be accurate in order to be informative.
4. The effects of the simplifications are often relatively small, the computations may become too complex if all factors are included. or it isn't possible to know the initial values of all factors well enough to include them
Option 4. The effects of the simplifications are often relatively small, the computations may become too complex if all factors are included, or it isn’t possible to know the initial values of all factors well enough to include them
Computational models often make our derivations and complex studies get simplified. However these models ignores some factors which can only be determines practically.Hence, the statement in 4th option better indicates the need of simplifications.
What is computational model?A computational model is used to predict som complex structures or performing complex derivations and calculations using computer programmes and simulations.
For instance, there are various computational softwares such Gaussian to study the structural and electronic properties of molecules such as bond parameters, enthalpies etc. Similarly, the Hartree method for the calculation of energy levels can be performed using computational models.
These models simplifies and make more easier to understand a parameter or any structure or equation. However some factors which cannot included in these computations make a chance of inaccuracy in them.
In fact they cannot predicted by computations but can only be determined practically. But to make the study simpler adn near perfection we use these models without too much complex factors. Hence, option 4 is correct.
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Suppose you take a trip that covers 490 km and takes 1 hours to make. Your average speed is
O 35 km/h
O 490 km/h
O 70 km/h
O 980 km/h
Answer:
B
Explanation:
490km/h
490km/1h
490000/3600
note: 1h= (60×60)=3600
hope it help??
Help on 27 and 28 thanks and pleasee
Answer:
27. 2nd Law of Motion ✔
28. 3 N ✔
Explanation:
27.
1st Law Of Motion
Force = 0 (not moves)2nd Law of Motion
Force = mass × acceleration (moves)3rd Law Of Motion
Force of Action = - Force of Reaction28.
'Cause force in the other direction, the net force is :
F = 10 N - 7 N
F = 3 N
Why is mass not included in the calculated height equation ?
Answer:
You can't use energy conservation when mass is removed. This has required energy that you are not taking into account.
Answer:
because some time it dose not need to be i equation becasue it is not need
Explanation:
Which type of color is most associated with emotions and attributes such as
calmness, sadness, and stillness? Choose the answer.
neutral
dynamic
warm
cool
The colors that are most associated with emotions and attributes such as calmness, sadness, and stillness are cool colors, therefore the correct answer is option D.
What is science?Science is the methodical, empirically-based pursuit and application of knowledge and understanding of the natural and social worlds.
A method of learning about the world is science. Science allows people to participate in the creation of new knowledge as well as use that knowledge to further their goals. It is both a process, a product, and an institution.
Thus, the colors that are most associated with emotions and attributes such as calmness, sadness, and stillness are cool colors, therefore the correct answer is option D.
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bro someone please help me, i need to turn this in by tomorrow first class of the day. if you can answer this page for me, please answer with a short sentence or paragraph if needed. thank you and please help me.
Answer: Sorry you I don't umderstand
Explanation:
which is an example of qualitative data?
A) the number of golfers who use callaway clubs
B) the scores of the golfers who use callaway clubs
C) the rating that the golfers give Callaway clubs
D) the number of putts per round of golfers using Callaway clubs
In a science fiction novel two enemies, Bonzo and Ender, are fighting in outer spce. From stationary positions, they push against each other. Bonzo flies off with a velocity of +1.8 m/s, while Ender recoils with a velocity of -2.6 m/s. Determine the ratio mBonzo/mEnder of the masses of these two enemies.
Answer:
Explanation:
Conservation of momentum
Initial momentum is zero
mB(1.8) + mE(-2.6) = 0
mB(1.8) = mE(2.6)
mB/mE = 2.6/1.8
A dog is running at an initial speed of 10 m/s. He covers 50 m in 4 seconds. What is the acceleration of the dog?
a.
1.25 m/s2
b.
1.04 m/s2
c.
5 m/s2
d.
3.2 m/s2
Which is not poor conductor?
a) pure water
b) Cotton thread
c) plastic spoon
d) metal vase
Answer:
Metal vase
Explanation:
Pure water is not a good conductor, and neither is plastic or cotton. Metal is the only one of the four that actually is a good conductor. For example, lighting hitting metal, this happens because the lightning connects to anything that has some kind of conductant.
How much protein would be consumed with a 3-ounce serving of
this food?
A. 0g
B. 5g
C. 10g
D.15g
Please Help me
Answer:
15kg
(i actually did this)
Explanation:
k12
hope this helped!
i hope you ace it!
Answer: B) 5g
I took the 4.11 Unit Test: Nutrition quiz.
Helen is riding down a freeway on her motorcycle at 95kilometersperhour. At this speed, how far will Helen ride in 2hours?
What is the pulling force of this train, if its engine provides 4200 kW power and 90 km/h speed?
Answer:
yes by 30
Explanation:
uhnhuh
An astronaut drops a hammer from 3.0 meters above the surface of the Moon. If the acceleration due to gravity on the Moon is 1.62 meters per second2, how long will it take for the hammer to fall to the Moon’s surface?
Distance = (1/2 acceleration) · (time)²
3 m = (0.81 m/s²) · (t²)
t² = (3m / 0.81 m/s²)
t² = 3.70 s²
t = 1.92 seconds
Answer:
it c on edge
Explanation:
trust
