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Kisachek [45]
3 years ago
10

HELP ASAP! GIVING BRAINLIEST

Physics
2 answers:
Sergio [31]3 years ago
8 0

Answer:

Sound energy..

Explanation:

alina1380 [7]3 years ago
5 0

Answer: Kinetic Energy?

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Which is usually greater for a pair of surfaces, the coefficient of static friction or the coefficient of sliding friction? why
lorasvet [3.4K]

Explanation :

Static friction is the frictional force between two objects that are at rest. While sliding friction is the frictional force between two objects in contact and are sliding w.r.t each other.

Static friction is usually greater than sliding friction because in static friction the contact forces is more and the interlocking between objects is tight as compared to sliding friction.    

5 0
3 years ago
Which of the following is a quantitative observation?
liubo4ka [24]

The statement that is a quantitative observation is that bird has four different colors on it (option B).

<h3>What is a quantitative research?</h3>

A quantitative research is a systematic scientific investigation of quantitative properties and phenomena and their relationships, using statistical methods.

A quantitative observation has to do with numbers or numeric analysis.

This suggests that the statement that is a quantitative observation is that bird has four different colors on it.

Learn more about quantitative observations at: brainly.com/question/1434538

#SPJ1

8 0
1 year ago
If the speedometer of your car reads a constant speedometer of your car reads a constant speed of 40km/hr , can you say the car
Harrizon [31]
I think u can say thats a constant velocity, but remember if ur turning, or going around a curve, that is also changing velocity. Hope this helps have a great day! 
4 0
3 years ago
If ball C is 3 times the volume of ball D and ball D has 1/3 the mass of ball C, which has the greater density?
Alex Ar [27]

Answer:

They have same density

Explanation:

The density of an object is defined as

d=\frac{m}{V}

where

m is the mass of the object

V is its volume

Let's call m_c and V_c the mass and the volume of ball C, respectively. Therefore, the density of ball C is:

d_c = \frac{m_c}{V_c}

We know that the volume of ball C is 3 times the volume of ball D, so

V_c = 3 V_d \rightarrow V_d = \frac{V_c}{3}

And we also know that ball D has 1/3 the mass of ball C:

m_d = \frac{m_c}{3}

So, the density of ball D is:

v_d = \frac{m_d}{V_d}=\frac{m_c/3}{V_d/3}=\frac{m_c}{V_c}=d_c

Therefore, the two balls have same density.

6 0
3 years ago
A dolphin swims 56 meters in 8 seconds and a walrus swims 30 meters in 6 seconds. Which is one has the faster speed, the dophin
Natali [406]

Answer:

dolphin= 7 meters/1 second      walrus= 5 meters/1 second

Explanation:

56 divided by 8 is 7

30 diviided by 6 is 5

5 0
3 years ago
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