Answer:
The rate of conductive heat transfer Q/t is approximately 3.158 Watts
Explanation:
The given parameters of the Styrofoam cup are;
The thermal conductivity of the cup, k = 0.010 W/(m·°C)
The cross-sectional area of the cup, A = 3.0 × 10⁻² m²
The thickness of the cup, L = 0.589 cm = 0.00589 m
The temperature of the coffee (in the cup) = 89°C, T₂ = 86.0 °C
The temperature of the air in the room (of the cup of coffee), T₁ = 24.0°C
The rate of conductive heat transfer of the cup of coffee, Q/t, is given by the following formula;
[tex]\dfrac{Q}{t} = \dfrac{k \cdot A \cdot (T_2 - T_1)}{L}[/tex]
Plugging in the value of the variables, in the above equation, gives;
[tex]\dfrac{Q}{t} = \dfrac{0.010 \, W/(m\cdot ^{\circ }C) \times 3.0 \times 10^{-2} m^2 \times (86.0 ^{\circ} C - 24.0^{\circ}C)}{0.00589 \, m} = \dfrac{60}{19} \ W[/tex]
The rate of conductive heat transfer of the cup of coffee, Q/t = 60/19 W = [tex]3.\overline {157894736842105263}[/tex] W ≈ 3.158 W.
Which of the following is not a function of the suspension system?_____
A. Keeping tires in firm contact with the road.
B Providing a smooth, comfortable ride.
C .Allowing body roll during rapid cornering.
D. Preventing excessive body squat or body dive.
The one that is not a function of a suspension system is keeping tires in firm contact with the road. The correct option is A.
What is a suspension system?A suspension system, which consists of tires, tire gas, springs, dampers, and connections that allow for relative motion between both, attaches a vehicle's wheels to it.
Although they are at odds with one another, road holding and road handling require the support of suspension systems. The steering linkage, which is a component of the steering column, helps transmit action from the joystick to the tires of the car and aids in turning them in the right direction and at the right pace.
The steering axle, wheel, and tires are all included, as well as a front suspension.
Therefore, the correct option is A. Keeping tires in firm contact with the road.
To learn more about the suspension system, refer to the link:
https://brainly.com/question/23185310
#SPJ6
Describe how to use cleaning tools and equipment safely and properly
Answer:
to use cleaning tools safe its save to read what there made of its safe not to use to much of the product its also save to use gloves and goggles for some other products
Select the correct answer. In which prototyping technique, is a solid physical model of a part obtained directly from a 3D CAD drawing without the use of tooling? OA virtual prototyping OB. 3D printing O C. rapid prototyping OD. selective laser sintering
Answer:
Rapid Prototyping
Explanation:
The guy in the comments above gave the answer and i got it right on the test. Thank you my brother
Briefly outline three areas to which agricultural engineers contribute, with examples of each.
PLEASE HURRY I NEED AN ANSWER QUICKLY
Answer:
This is off the internet! so put it in you own words.Explanation:
What Agricultural Engineers Do. ... Agricultural engineers attempt to solve agricultural problems concerning power supplies, the efficiency of machinery, the use of structures and facilities, pollution and environmental issues, and the storage and processing of agricultural products.
Which of the following shot pellets has the smallest diameter?
A, No. 9
B, No. 7 1/2
C, No. 4
D, 00 Buck
(its about guns)
The option of shot pellets that has the smallest diameter is (A) which is No. 9.
What are the pellets in shotgun shells known for?A shotgun shell is often known as shot shell. They are referred to as a type of shell that is often rimmed and it is contains a cylindrical cartridges that is often used in shotguns.
Conclusively, No. 9 is shot pellets that has the smallest diameter as it is the one whose diameter is very little.
Learn more about diameter from
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If you have a hole diameter of 0.250 with a tolerance of ±0.005, what are the limits of the hole size?
Answer:
The limits of the hole size are;
The maximum limit of the hole diameter 0.255
The minimum limit of the hole diameter = 0.245
Explanation:
Tolerance is a standardized form of language that can be used to define the intended 'tightness' or 'clearance' degree between mating parts in a mechanical assembly process and in metal joining processes such as welding and brazing processes
In tolerancing, the size used in the description of a part is known as the nominal size while allowable variation of the nominal size that will still allow the part to function properly is known as the tolerance
A tolerance given in the form ±P is known as bilateral tolerancing, with the value being added to or subtracted from the nominal size to get the maximum and minimum allowable limits of the dimensions of the nominal size
Therefore;
The given nominal dimension of the hole diameter = 0.250
The bilateral tolerance of the dimension, = ±0.005
Therefore;
The maximum limit of the diameter of the hole = 0.250 + 0.005 = 0.255
The minimum limit of the diameter of the hole = 0.250 - 0.005 = 0.245
If he wants to keep the height the same, what could the other dimensions be for him to get the volume he wants?
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6.3. A __________ is used to indicate the base material that needs to be beveled.
A. Bevel-groove weld symbol
B. Break in the arrow
C. Flag
D. Weld-all-around symbol
Answer:
A break in the arrow is used to indicate the base material that needs to be beveled
A. Break in the arrow
Explanation:
In a weld that involves the welding of a joint that has a, a bevel, flare bevel, or J-groove, the side that requires beveling (chamfering) preparation in the welded joint before welding is indicated by an arrow having a definitive before pointing to the beveled member
However, the break in the arrow could excluded when the side to be chamfered is unmistakable
Therefore, the break in the arrow is the option that is used to indicate which of the material that is to be beveled.
Cathy, a 125lb actress playing Peter Pan, is hoisted above the stage in order to “fly” by a stagehand pulling on a compound pulley system that has 6 supporting strands with a force of 30lbs. A) What is the ideal mechanical advantage of the pulley?
Answer:
The ideal mechanical advantage (IMA) of the pulley is 6
Explanation:
The question parameters are;
The mass of the actress playing Peter Pan = 125 lb
The force applied by the stagehand to the pulley to hoist her = 30 lbs
The Ideal Mechanical Advantage (IMA) of a pulley = The number of strands (rope) the pulley has
Therefore, the Ideal Mechanical Advantage (IMA) of the given pulley with 6 strands = 6.
Technician A says power steering pumps can be engine driven. Technician B says power steering
pumps can be electrically driven. Who is correct?
Select one:
A. Technician A
B. Technician B
C. Both A and B
D. Neither Anor B
Answer:
The correct option is;
C. Both A and B
Explanation:
Power steering supplies power more steering power when a driver turns the wheel to leverage the input steering effort of the driver thereby providing more steering with small effort
The power steering pumps which supply the power that to the fluid that eases steering of the wheel can be driven by the engine through a belt and pulley system or it can be installed in the front of the vehicle and from there, electrically driven alongside the refrigerant compressor
Therefore, both Technician A and Technician B are correct
If f(
[tex]x[/tex]
) =
[tex]81 {x}^{2} [/tex]
[tex]0 < x < \frac{1}{3} [/tex]
[
[
find the E (
[tex]x[/tex]
) and var(a)
I need help with my autos
Answer:
what is wrong with it and what is the question
Explanation:
In the last 5 meters of braking, you lose ___ of your speed.
Select one:
a. 3/4
b.1/4
c. 1/2
d. None of these
Answer:
answer is
a)
3/4
Explanation:
In the last 5 meters of braking, you lose 3/4 of your speed.
Which is TRUE regarding series circuits?
1) Resistance remains constant.
2) Voltage remains constant.
3) Power remains constant.
4) Current remains constant.
Answer:
Maybe it's 4 don't remember exactly
Blank are the amount of
Blank
moved.
Select one:
a.
Amps; electrons
b. Volts; electrons
C. Amps; protons
d. Volts: protons
Answer:
Amps, electrons
Explanation:
Amps, or amperes is the measure of electrons flowing though a wire per second.
1A = 6.24*10^18 electrons / second
Type the correct answer in the box. Spell all words correctly. Elaine is an engineer. She has to create a prototype of a machine. To do this, she uses a technique where the production time of the prototype is reduced considerably with the help of a fast generation of 3D models. Which technique did she use? Elalne used the technique where the production time of the prototype is reduced considerably with the help of a fast generation of 3D models.
Answer:
the mean time I was wondering if you have any questions or need any further information please contact me at the mean time I was