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stepladder [879]
3 years ago
10

AAAAAAAAAH

Physics
2 answers:
stiv31 [10]3 years ago
7 0

Answer:

II only

Explanation:

For heat to flow from one object to another, there must be a temperature difference between them. Temperature is a measure hotness or coldness of an object or a body.

An object consists of vibrating molecules, thus molecular kinetic energy. The measure of the average kinetic energy of an object is its temperature. Thus, when object A has higher temperature (hotter) than B, heat would flow from A to B.

Dimas [21]3 years ago
4 0

Answer:

l and lll

Explanation:

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The mechanical advantage of a machine is always greater than 1. true or false
Alja [10]
True mechanical advantage of a machine is always greater than
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3 years ago
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You throw a balloon that floats in the air with a velocity of 2 m / s south . If the wind speed is 5 m / s west , how far south
zvonat [6]

Answer:

The distance traveled by the balloon is 10.77 m

Explanation:

velocity of the ball, v_b = 2 m/s south

velocity of the air, v_a = 5 m/s west

To determine the distance the balloon will travel after 2 seconds, first determine the resultant velocity of the balloon.

                                       | 2m/s

                                       |

                                       |

                                      ↓

      5m/s  ←------------------

the two velocities forms a right angled triangle and the resultant will be the hypotenuses side of the triangle.

R² = 5² + 2²

R² = 29

R = √29

R = 5.385 m/s

The distance traveled by the balloon is calculated as;

d = R x t

where;

t is time of the motion = 2 seconds

d = 5.385 x 2

d = 10.77 m

Therefore, the distance traveled by the balloon is 10.77 m.

4 0
3 years ago
If the relative humidity is 25 nd the saturation mixing ratio is 24g/kg, what is the mixing ratio?
levacccp [35]

The mixing ratio is 6.

To find the answer, we have to know about the mixing ratio.

<h3>What is mixing ratio?</h3>
  • The mixing ratio must be calculated in a complex manner.
  • A saturated vapor pressure (es) for values of air temperature and an actual vapor pressure (e) for values of dewpoint temperature must be determined in order to determine the mixing ratio.
  • The air temperature and/or dewpoint temperature must first be converted to degrees Celsius (°C) before the vapor pressures can be calculated.
  • The equation below can be used to determine the relative humidity (rh), as well as the actual mixing ratio and saturated mixing ratio,

                         Rh=\frac{w}{w_s} *100

where; w is the mixing ratio and w(s) is the saturation mixing ratio.

  • In our question, it is given that,

                                    Rh=25\\w_s=24

  • Thus, the mixing ratio will be,

                            w=\frac{Rh*w_s}{100} =\frac{25*24}{100}=6

Thus, we can conclude that, the mixing ratio is 6.

Learn more about mixing ratio here:

brainly.com/question/8791831

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5 0
2 years ago
Which stretch focuses on stretching the glutes and hamstrings while laying on your back?
WINSTONCH [101]

Answer:

knee to chest

Explanation:

I took the test

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A student constructed a series circuit consisting of a 12.0-volt battery, a 10.0-ohm lamp, and a
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The power dissipated across a component can be calculated through the formula P=I^2xR

Substituting the values in we get P=(0.5)^2x10=2.5W
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