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dolphi86 [110]
3 years ago
5

The equation for density is a physical model true or false

Physics
2 answers:
docker41 [41]3 years ago
8 0

Answer:

I would say true

Explanation:

it think. If I am correct, can I get a brainliest please? you don't have to, tho

gulaghasi [49]3 years ago
3 0

Answer:

No

Explanation:

Because it is mass ÷ volume and its not an actual model

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In which situation does heating a substance generally change the temperature?
marta [7]
The correct answer is C
5 0
3 years ago
Which of the following best describes why understanding a watershed and its boundaries is important in designing housing develop
vagabundo [1.1K]

Answer:

d

Explanation:

5 0
2 years ago
arzan, who weighs 700 N, swings from a cliff at the end of a convenient vine thatis 20 m long. From the top of the cliff to the
vekshin1

Answer:

= 7.07 m

Explanation:

The Tarzan reaches bottom of swing after descending 2.5 m,

change in his potential energy equals his kinetic energy at bottom of swing

m g h = (1/2) m v²   ,  

hence speed v of Tarzan at bottom of swing is given as  

v = ( 2 g h )1/2

= ( 2 × 9.8 × 2.5 )1/2

= 7 m/s

At the bottom of swing, if the vine breaks, then he is moving with horizontal velocity 7 m/s in gravitational field.  

If vertical distance from ground to bottom of swing is 5 m, then time t for Tarzan to reach ground is given by

S = (1/2)g t2 or   t = (2S/g)1/2

= ( 2 × 5 / 9.8 )1/2

= 1.01 s

Horizontal distance traveled by Tarzan = 1.01 × 7

= 7.07 m

7 0
2 years ago
After clearing the bar on a high jump, you land softly on a giant mattress. landing on a mattress is more comfortable than landi
madam [21]

Answer:

The right approach is Option b (the force..................exert on you).

Explanation:

  • Even before you fall on something like a soft object, users eventually slow to a halt. You are still giving away all the downward momentum, but progressively although with small powers, you are doing so.  
  • Although you can get injured by massive powers, this gradual displacement is a positive thing. And that is why you have a mattress you would like to settle on.  

The other options given are not connected to the situation described. So, the solution here was the right one.

3 0
2 years ago
Help!!! Asap!!!
KiRa [710]

Answer:

Probs paper cuz the rest are metals

4 0
1 year ago
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