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larisa [96]
3 years ago
15

A scientist tested Charles’s law, which states that volume is directly related to temperature. Assume constant pressure. What wi

ll the scientist observe?
A) as volume decreases, temperature increases
B) as volume decreases, temperature decreases
C) as volume increases, temperature stays constant
D) as volume decreases, temperature can increase or decrease
Physics
2 answers:
liubo4ka [24]3 years ago
7 0

Answer:

B) as volume decreases, temperature decreases

Explanation:

As per ideal gas equation we know that

PV = nRT

now we know that

V = (\frac{nR}{P}) T

so here we know that since the pressure is constant so volume is directly proportional to the temperature

So here if we change the volume then the same change will occur to the temperature

so correct answer will be

B) as volume decreases, temperature decreases

sergeinik [125]3 years ago
5 0

Based on the options given, the most likely answer to this query is 

B) as volume decreases, temperature decreases.
Charles' law states that when volume increase or decrease, accordingly, temperature becomes similar.

Thank you for your question. Please don't hesitate to ask in Brainly your queries. 
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What is the weight, in pounds, of a 175- kg object on jupiter?
IceJOKER [234]
Weight is the force that the gravitational exerts on a body given by the mass multiplied by the gravitational acceleration. 
1 pound = 4.448 Newtons
The gravitational acceleration in Jupiter is 24.79 m/s² which is about 2.36 times that of the earth. Mass of a body remains constant everywhere.
Weight = mg 
             = 175 × 24.79
             =  4338.25 Newtons
Then, 4338.25/4.448 = 975.326 pounds
5 0
3 years ago
Read 2 more answers
What you wrap sandwich in periodic pun
Degger [83]

Answer:

Aluminum (Al)

Explanation:

1. You wrap a sandwich in aluminum foil

2. Aluminum is on the periodic table.

4 0
4 years ago
An electric motor can drive grinding wheel at two different speeds. When set to high the angular speed is 2000 rpm. The wheel tu
shutvik [7]

a) The initial angular speed is 209.3 m/s

b) The angular acceleration is -1.74 rad/s^2

c) The angular speed after 40 s is 139.7 rad/s

d) The wheel makes 1501 revolutions

Explanation:

a)

The initial angular speed of the wheel is

\omega_i = 2000 rpm

which means 2000 revolutions per minute.

We have to convert it into rad/s. Keeping in mind that:

1 rev = 2\pi rad

1 min = 60 s

We find:

\omega_i = 2000 \frac{rev}{min} \cdot \frac{2\pi rad/rev}{60 s/min}=209.3 rad/s

b)

To find the angular acceleration, we have to convert the final angular speed also from rev/min to rad/s.

Using the same procedure used in part a),

\omega_f = 1000 \frac{rev}{min} \cdot \frac{2\pi rad/rev}{60 s/min}=104.7 rad/s

Now we can find the angular acceleration, given by

\alpha = \frac{\omega_f - \omega_i}{t}

where

\omega_i = 209.3 rad/s is the initial angular speed

\omega_f = 104.7 rad/s is the final angular speed

t = 60 s is the time interval

Substituting,

\alpha = \frac{104.7-209.3}{60}=-1.74  rad/s^2

c)

To find the angular speed 40 seconds after the initial moment, we use the equivalent of the suvat equations for circular motion:

\omega' = \omega_i + \alpha t

where we have

\omega_i = 209.3 rad/s

\alpha = -1.74 rad/s^2

And substituting t = 40 s, we find

\omega' = 209.3 + (-1.74)(40)=139.7 rad/s

d)

The angular displacement of the wheel in a certain time interval t is given by

\theta=\omega_i t + \frac{1}{2}\alpha t^2

where

\omega_i = 209.3 rad/s

\alpha = -1.74 rad/s^2

And substituting t = 60 s, we find:

\theta=(209.3)(60) + \frac{1}{2}(-1.74)(60)^2=9426 rad

So, the wheel turns 9426 radians in the 60 seconds of slowing down. Converting this value into revolutions,

\theta = \frac{9426 rad}{2\pi rad/rev}=1501 rev

Learn more about circular motion:

brainly.com/question/2562955

brainly.com/question/6372960

#LearnwithBrainly

8 0
3 years ago
PLEASSEE HELP MEEE WITHH THESEEE
DanielleElmas [232]

Answer:

Q1: (a)

1cm \:  = 10 {}^{ - 2}m

so

45 \times  {10}^{ - 2} m

Q2:

1km = 10 {}^{3} m \\ 6378km \times  {10}^{ 3}

this is the radius in meter

diameter = 2r

in this i don't know which choice is the right answer

Q3:

1gram = \:  {10}^{ - 3} kg

so

250 \times  {10}^{ - 3}  = 2.5 \times  {10}^{ - 1} kg

again there is no correct answer

7 0
3 years ago
Which of these would have a volume equal to about 2 cm³?
postnew [5]
Answer could be2 grains of rice
5 0
3 years ago
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