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Kobotan [32]
3 years ago
14

Help with both questions I’ll mark brainliest

Physics
2 answers:
Doss [256]3 years ago
6 0

Answer:

1. gas , liquid , gas

2.sound cannot travel in space

creativ13 [48]3 years ago
5 0

Answer:

gas, liquid, solid

sound cannot travel in space

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A block of mass m=3.0 kg is pushed down a 50° incline surface with a force of magnitude F=40 N.
Sauron [17]

Answer:

I really don't know but please if you find the correct answer tell me because I'm eager to know

7 0
3 years ago
What maximum upward acceleration can it give the elevator without breaking?.
MariettaO [177]

The maximum upward acceleration that the elevator can have without breaking is = 10.36m/s².

<h3>How to calculate maximum upward acceleration?</h3>

To calculate the maximum acceleration of the elevator we must take into account Newton's second law and its formula that takes into account the following aspects:

  • F = Is the force applied in newtons.
  • m = Is the mass of the object in kilograms.
  • a = Is the acceleration of the object in meters per second squeared.

  • F = m × a

According to the above, we apply the values we have as follows:

  • a = \frac{F}{m}

  • a = \frac{21750N}{2100Kg}

  • a = 10.36 m/s²

Note: This question is incomplete because some information is missing. Here is the complete information.

Learn more about acceleration in: brainly.com/question/13312735

7 0
3 years ago
A person with a mass of 15kg is walking uphill at a velocity of2m/s. What is the walker's momentum?
Nadusha1986 [10]

Answer:

30 kgm/s

Explanation:

The momentum of a body is given by the product of mass and  its velocity.

∴ momentum = mv

                        = 15 × 2

                        = 30 kgm/s

4 0
3 years ago
Which of the following describes volume?
kolezko [41]
The option that describes volume is B. the amount of space that matter occupies.
It refers to the area within which some body is contained, and is usually measured in cubic meters, or any variation of the meter.
5 0
3 years ago
Consider water flowing through a cylindrical pipe with a variable cross-section. The velocity is v at a point where the pipe dia
Harrizon [31]

Answer:

one ninth

Explanation:

d = 1 cm , v = v

D = 3d, V = ?

By the equation of continuity,

A V = a v

3.14 x D^2 / 4 x V = 3.14 x d^2 / 4 x v

9d^2 x V = d^2 x v

V = v / 9

Thus, the velocity becomes one ninth the initial velocity

5 0
3 years ago
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