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Tema [17]
4 years ago
13

When frequency of a sound goes down, then...

Physics
2 answers:
Sophie [7]4 years ago
5 0

B) The wavelength is longer and the pitch is lower

rusak2 [61]4 years ago
3 0
The answer is Bj The wavelength is longer and the pitch goes down
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Which tools would be necessary to determine whether or not a large regular block will float, without using water? A) Ruler and b
kondor19780726 [428]

Answer:

A.ruler and balance is the answer.

6 0
2 years ago
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How do they make pickle sunflower seeds?
Kobotan [32]

<em>Preheat oven to 350°F. Spray large baking sheet with cooking spray. </em>

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<em>Generously season sunflower seeds with dill mixture and toss to combine. Taste and season again, if needed. </em>

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7 0
3 years ago
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If silicic rock is found in a core sample. What evidence does this provide about the rocks location ?
frez [133]

Answer:

The rocks location is underneath an ocean or mountain

Explanation:

Silicic rock are igneous rock rich in silica. The amount of silica that constitutes a silicic rock is usually defined as at least sixty three percent. Granite and rhyolite are the most common silicic rocks found. These are found in the magma of the Earth.

Silicic is the group of silicate magmas which crystallise a relatively small proportion of ferromagnesian silicates. The main constituents of a silicic rock will be minerals rich in silica-minerals mainly.

7 0
4 years ago
When an object accelerates, what about its motion changes? Question 1 options: Speed must change, but not velocity. Both speed a
QveST [7]

Answer:

The velocity must change but not speed.

Explanation:

  • Velocity is defined as the displacement by time. Whereas speed is expressed as the distance between two successive positions of the body to the time interval it took to travel.

                <em>Velocity,        V = D / t        m/s</em>

<em>                  Speed,          s = d /t          m/s        </em>  

  • Velocity is a vector quantity that has a magnitude and direction.
  • The speed is a scalar quantity having only the magnitude.
  • At any instant of time, the magnitude of the velocity is always equal to the magnitude of the speed. The magnitude of velocity, |<em>v </em>| = magnitude of speed, |<em>v </em>|. The magnitude is always positive
  • The acceleration of a body is defined as the rate of change of velocity to time.

                               <em>   a = (v - u) / t      m/s²</em>

  • If a body is accelerating, It varies its velocity with respect to time.
  • In case of uniform circular motion, the speed remains constant, but the velocity changes continuously.

So, in the case of circular motion if an object accelerates, velocity must change but speed remains constant.

5 0
4 years ago
A car travels 60 miles in the first 2 hours and 68 miles in the next 2 hours
Gemiola [76]

32miles/hr

Explanation:

Given parameters:

Distance 1 = 60miles

Time 1 = 2hrs

Distance 2 = 68miles

Time 2 = 2hrs

Unknown:

Average speed of the car =  ?

Solution:

Average speed is the total distance covered in a particular duration of time.

   Average speed = \frac{total distance}{total time taken}

 Total time taken = time 1 + time 2 = 2hrs + 2hrs = 4hrs

  Total distance = distance 1 + distance 2 = 60miles + 68miles = 128miles

Average speed = \frac{128miles}{4hrs} = 32miles/hr

learn more:

Motion brainly.com/question/2863017

#learnwithBrainly

6 0
4 years ago
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