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Eva8 [605]
4 years ago
6

Which of the following statements is untrue in regard to sound traveling in air?

Physics
1 answer:
Olegator [25]4 years ago
5 0
The right answer for the question that is being asked and shown above is that: "d. As the distance from the Earth increases, the sound wave intensity also decreases due to the lessening density." This the <span>statement that is untrue in regard to sound traveling in air</span>
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Calculate the momentum for the following scenario: a bowling ball is moving at a velocity of 15 m/s and has a mass of 8.00 kg. *
svetlana [45]

Answer:

120 kg • m/s

Explanation:

<em>p = mv</em>

15 × 8.00 = 120

<em />

5 0
3 years ago
A book falls off a shelf that and hits the ground at 10.0 m/s. How far did it fall?
ELEN [110]

Answer:

Explanation:

14 m/s

Explanation:

The motion of the book is a free fall motion, so it is an uniformly accelerated motion with constant acceleration g=9.8 m/s^2 towards the ground. Therefore we can find the final velocity by using the equation:

where

u = 0 is the initial speed

g = 9.8 m/s^2 is the acceleration

d = 10.0 m is the distance covered by the book

Substituting data, we find

8 0
3 years ago
Which form of
Soloha48 [4]
I think it’s C b/c it works for me
3 0
3 years ago
A scientist counts the number of bacteria colonies growing in each of six lab dishes.
Vsevolod [243]

Hi!

The correct answer is: C. It is the data value that appears the most often in the set.

<h3>Explanation</h3>

The mode of a set of values is the number which is the most frequently appearing, or most repeating value in the range. The numbers that show one time each are

A - 16 , C - 25 , D - 3

While 13 appears three times with the dishes labelled

B , E and F

So, the value that appears the most times is 13, and hence 13 is taken as the mode of this data set

<h3>Hope this helps!</h3>
5 0
3 years ago
Read 2 more answers
An object of mass 20g taken at a height of 2m above the ground. Which type of energy is possessed by the object at this height ?
In-s [12.5K]
<h3><u>Given</u> </h3>
  • Mass of an object is \bf\red{20 g}
  • Height of the body is \bf\green{2 m}
<h3><u>To Find</u></h3>
  • Value of the energy

<h3><u>Solution</u></h3>

{\purple {\underline{\boxed{\sf{ Potential\: Energy \:=\: mgh}}}}}

Where,

  • \sf\red{m} = Mass
  • \sf\green{g} = Gravity
  • \sf\blue{h} = Height

Now, Converting gram to kg

\longrightarrow\: 1000g = 1kg

\longrightarrow\: 20g = \sf\dfrac{20}{1000}

\longrightarrow\: = 0.02 kg

According to the question

\sf\red{Mass \:= \:0.02 kg}

\sf\green{Gravitational \;force \:= \;10 m/s^{2}}

\sf\purple{Height\: =\: 2 m}

Putting these values

\to\: Potential Energy = mgh

\to\: Potential Energy = 0.02 × 10 × 2

\to\: Potential Energy = 0.2 × 2

\to\: Potential Energy = \bf\pink{0.4\:joules}

7 0
3 years ago
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