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snow_tiger [21]
3 years ago
13

What best describes the states of nonmetals when they are at room temperature? Most nonmetals are gaseous, but some are liquid o

r solid. All nonmetals are gaseous unless they bond with a metal. Most nonmetals are solids, but some are gaseous or liquid. All nonmetals are solid unless they bond with a metal.
Physics
2 answers:
nadezda [96]3 years ago
4 0

Answer: Option (a) is the correct answer.

Explanation:

Non-metals are the substances that are deficient in electrons as compared to metals.

For example, carbon, selenium, bromine, chlorine, phosphorous etc are all non-metals.

At room temperature, hydrogen, helium, fluorine, chlorine etc all exist as gases. Whereas some non-metals exist as solid like carbon, phosphorous, sulfur, selenium, iodine etc.

But bromine exist as a liquid.

Hence, we can conclude that the statement Most nonmetals are gaseous, but some are liquid or solid, is true.

abruzzese [7]3 years ago
3 0
I think the correct answer from the choices listed above is the first option. The statement that best describes the state of metals when they are at room temperature would be that most <span>nonmetals are gaseous, but some are liquid or solid. Hope this answers the question. Have a nice day.</span>
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Answer:

7 miles northeast is the because it has both magnitude and direction .

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Technician A says that the accumulator is on the high-pressure side of the refrigerant system. Technician B says that the receiv
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Question:

The options are

a. Technician A only

b. Technician B only

c. Both A and B

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Answer:

The correct option is

d. Neither A nor B

Explanation:

Here, we note that to locate the receiver/driers we look at the high-pressure side of refrigerant system normally around the tubes in between the expansion valve outlet and the condenser outlet and connected to the condenser.

While the accumulator can be found, attached to the evaporator outlet within the low pressure side of the refrigerant system.

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6 0
2 years ago
The longer the handle the __________ the mechanical;advantage&amp; ;and the greater the increase in force that is applied to the
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4 0
3 years ago
A boy kicks a football from ground level. The ball takes 3 seconds to reach its maximum height. What is the angle of the initial
ruslelena [56]
<h2>The angle of the initial velocity with respect to the horizontal is 85.14°</h2>

Explanation:

Given that the ball takes 3 seconds to reach its maximum height.

Consider the vertical motion of ball till maximum height.

We have equation of motion v = u + at

     Acceleration, a = -9.81 m/s²

     Final velocity, v = 0 m/s    

     Time, t = 3 s

     Substituting

                      v = u + at  

                      0 = u + -9.81 x 3

                      u = 29.43 m/s

Initial vertical velocity is 29.43 m/s.

Now consider horizontal motion of ball.

Time of flight of ball = 2 x Time to reach maximum height = 2 x 3 = 6 s

Displacement = 15 m

We have equation of motion s = ut + 0.5 at²

        Displacement, s = 15 m

        Acceleration, a = 0 m/s²  

        Time, t = 6 s      

     Substituting

                      s = ut + 0.5 at²

                      15 = u x 6 + 0.5 x 0 x 6²

                      u = 2.5 m/s

Initial horizontal velocity is 2.5 m/s

Let r be the initial velocity and θ be the angle with horizontal

              Initial vertical velocity = rsinθ = 29.43 m/s

              Initial horizontal velocity = rcosθ = 2.5 m/s

Dividing

              \frac{rsin\theta }{rcos\theta }=\frac{29.43}{2.5}\\\\tan\theta=11.77\\\\\theta=85.14^0

The angle of the initial velocity with respect to the horizontal is 85.14°

4 0
2 years ago
Car A (1750 kg) is travelling due south and car B (1450 kg) is travelling due east. They reach the same intersection at the same
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Consider the east-west direction along x-axis and north-south direction along y-axis. In unit vector notation, velocities can be given as

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Comparing the coefficient of "i" and "j" both side

(1450) V_{B} = 97600    and - (1750) V_{A} = - 60160

V_{B} = 67.3 km/h        and  V_{A} = 34.4 km/



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3 years ago
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