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Karo-lina-s [1.5K]

3 years ago

14

Describe sound and record

2 answers:

Iteru [2.4K]3 years ago

8 0

Audible: a sound that is loud enough to hear

A record is a database entry that may contain one or more values

oksian1 [2.3K]3 years ago

3 0

Answer:

record is information created, received and maintained as evidence and information by an organization or person.in simpler terms it's a collection of of fields probably of different data types.

sound is however something loud or soft.which can be defined as vibrations that travel through the air or another medium.

I hope this helps

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In (A) Water has same mass and great volume

aniked [119]

Answer:

I didn't get pic from you but I got the type of answer that u want.

Explanation:

Water molecules are always moving. But on the average they are packed the same throughout. Therefore, the ratio between the mass and volume is the same, making the density the same. This is true no matter the size of the sample or where you select your sample from.

7 0

3 years ago

A Porsche challenges a Honda to a 200-m race.Because the Porsche's acceleration of 3.5 m/s2 is larger than the Honda's 3.0 m/s2,

Blizzard [7]

Answer:

Honda won by 0.14 s

Explanation:

We are given that

Distance =S=200 m

Initial velocity of Honda=u=0m/s

Initial velocity of Porsche=u'=0m/s

Acceleration of Honda= $3.0m/s^2$

Acceleration of Porsche's= $3.5m/s^2$

Time taken by Honda to start=1 s

$s=ut+\frac{1}{2}at^2$

Substitute the values

$200=0(t)+\frac{1}{2}(3)t^2$

$200=\frac{3}{2}t^2$

$t^2=\frac{200\times 2}{3}=\frac{400}{3}$

$t=\sqrt{\frac{400}{3}}=11.55s$

Time taken by Honda=11.55 s

Now, time taken by Porsche

$200=\frac{1}{2}(3.5)t^2$

$t^2=\frac{200\times 2}{3.5}$

$t=\sqrt{\frac{400}{3.5}}=10.69 s$

Total time taken by Porsche=10.69+1=11.69 s

Because it start 1 s late

Time taken by Honda is less than Porsche .Therefore, Honda won and

Time =11.69-11.55=0.14 s

Honda won by 0.14 s

3 0

3 years ago

A chandelier is suspended by two identical, vertical chains side by side. The chandelier's mass is m = 6.5 kg. Part (a) If the t

Alja [10]

Answer:

a)T= mg/2

b) T = 31. 88 N

c)Tension will increase

Explanation:

Given that m= 6.5 Kg

a)

The force due to gravity = m g

The tension in the chain = T

The total tension = 2 T

By balancing force in vertical direction

2 T = m g

T= mg/2

b)

2 T = m g

2 x T = 6.5 x 9.81

T = 31. 88 N

c)

Lets take angle made by chain is θ

So the total tension in vertical direction = 2 T cos θ

2 T cos θ = m g

T= mg/(2cos θ)

It means that tension will increase because cos θ is always less than 1.

3 0

3 years ago

Read 2 more answers

Unlike a mineral, a rock _____.

vitfil [10]

Answer:

So unlike a mineral, a rock is a substance composed of one or more minerals

Explanation:

Hello ! Let's solve this!

Minerals are simple natural and inorganic substances. Rocks are a set of many minerals.

So unlike a mineral, a rock is a substance composed of one or more minerals

6 0

3 years ago

A dog starts at position x = 2.50 m, and undergoes a displacement of 8.25 m. What is its final position?

Jet001 [13]

Answer: 10.75 m

Explanation:

Displacement is how far the dog is from its original position, so use addition

initial + displacement = final

2.50 + 8.25 = 10.75

5 0

3 years ago