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Ilia_Sergeevich [38]
3 years ago
5

Which statement best describes how scientists and engineers work together in the research and development cycle? A. Scientists t

est designs made by engineers and then use the results to improve the designs. B. Scientists develop a new technology, and then engineers test it by doing experiments. C. Engineers come up with scientific questions when they are developing their design, and scientists do research to answer them. O D. Engineers make a scientific discovery, and then scientists perform research to verify it. please help asap if you can​
Physics
2 answers:
Pavlova-9 [17]3 years ago
7 0

Answer:

c

Explanation:

kiruha [24]3 years ago
5 0

C. Engineers come up  with  scientific questions when they are developing their design, and scientists do research to answer them

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A sample neon gas has its volume tripled and its temperature held constant. What will be the new pressure relative to the initia
liberstina [14]

Answer:

Correct answer:  p₂ : p₁ = 1 : 3

Explanation:

A process that occurs at a constant temperature is called an isothermal process and the formula that applies to this process is:

p · V = const  where p is pressure and V is volume

Given : V₂ = 3 V₁

p₁ V₁ = p₂ V₂  ⇒ p₂ / p₁ = V₁ / V₂ ⇒  p₂ / p₁ = V₁ / 3 V₁ ⇒  p₂ / p₁ = 1 / 3

p₂ : p₁ = 1 : 3

which means that when the volume is increased three times the pressure is reduced three times

God is with you!!!

5 0
3 years ago
7) Se calcula dividiendo distancia entre tiempo
sveta [45]

Answer:

A) Rapidez

Explanation:

Speed is a scalar quantity and it is found by dividing the distance traveled by the time taken.

 Speed  = \frac{distance}{time}  

Distance is the length of path covered whereas time is the duration of the travel.

Unlike velocity which is a vector, speed is a scalar quantity with only magnitude but no direction.

5 0
2 years ago
The CEO, ellen misk, left her martian office but accidentally left a cylindricall can of coke (3.1 inches in diameter, 5.42 inch
iren2701 [21]

Answer:

Specific Gravity = 0.378

Explanation:

First, we will find the force exerted by the can on the table. This force will be equal to the weight of the can:

Pressure = Force/Area = Weight/Area

Weight = Pressure*Area

where,

Area = πdiameter²/4 = π[(3.1 in)(0.0254 m/1 in)]²/4 = 4.8 x 10⁻³ m²

Weight = (510 N/m²)(4.8 x 10⁻³ m²)

Weight = 2.48 N

Now, the weight is given as:

Weight = mg

2.48 N = m(9.8 m/s²)

m = (2.48 N)/(9.8 m/s²)

m = 0.25 kg

Now, we calculate volume of can:

Volume = (Area)(Height) = (4.8 x 10⁻³ m²)(5.42 in)(0.0254 m/1 in)

Volume = 6.6 x 10⁻⁴ m³

Hence, the density of can will be:

Density of Can = m/Volume = 0.25 kg/6.6 x 10⁻⁴ m³

Density of Can = 378.32 kg/m³

So, the specific gravity of Can will be:

Specific Gravity = Density of Can/Density of Water

Specific Gravity = (378.32 kg/m³)/(1000 kg/m³)

<u>Specific Gravity = 0.378</u>

8 0
3 years ago
When equilibrium is reached in an electrochemical cell, the voltage reaches its maximum value. 1. false 2. true?
tigry1 [53]

False

Voltage in an electrochemical cell is in indication of equilibrium, higher will be the non-equilibrium, higher will be the voltage, or we can say at equilibrium voltage tends to 0.

Voltage in an electrical cell is the result of flow of electron, which flow due to difference in charge of the cells, higher the charge difference higher will be the voltage, as the equilibrium between the chemical cells established the flow of electron will stop, and the voltage of the cell tend to 0.

7 0
3 years ago
Read 2 more answers
A bicyclist starts at rest and speeds up to 30 m/s while accelerating at 4 m/s^2. Determine the distance traveled.
raketka [301]

Answer:

Distance, d = 112.5 meters

Explanation:

Initially, the bicyclist is at rest, u = 0

Final speed of the bicyclist, v = 30 m/s

Acceleration of the bicycle, a=4\ m/s^2

Let s is the distance travelled by the bicyclist. The third equation of motion is given as :

v^2-u^2=2as

s=\dfrac{v^2-u^2}{2a}

s=\dfrac{(30)^2}{2\times 4}

s = 112.5 meters

So, the distance travelled by the bicyclist is 112.5 meters. Hence, this is the required solution.

6 0
2 years ago
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