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3 years ago

What are the layers of the Earth's atmosphere?

2 answers:

4 0

Layers of the Earth's Atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere - Windows to the Universe.

borishaifa [10]3 years ago

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Layers of the Earth's Atmosphere: Troposphere, Stratosphere, Mesosphere, Thermosphere, and Exosphere - Windows to the Universe.
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While moving in, a new homeowner is pushing a box across the floor at a constant velocity. The coefficient of kinetic friction b

Citrus2011 [14]

Answer:

$\theta = 66.7 degree$

Explanation:

since force is applied downwards at some angle with the horizontal

so here we will have

$F_n = mg + Fsin\theta$

now we know that the box will not move if applied force is balanced by frictional force on it

so we will have

$Fcos\theta = \mu F_n$

$F cos\theta = \mu (mg + F sin\theta)$

$F(cos\theta - \mu sin\theta) = \mu mg$

$F = \frac{\mu mg}{cos\theta - \mu sin\theta}$

so here we can say

$cos\theta - \mu sin\theta > 0$

$tan\theta = \frac{1}{\mu}$

$\theta = tan^{-1}\frac{1}{\mu}$

$\theta = tan^{-1}(\frac{1}{0.43})$

$\theta = 66.7 degree$

6 0

3 years ago

What is the difference between mass and density?

Fantom [35]

Mass relates to how much space something takes up (size) density relates to weight

8 0

3 years ago

Read 2 more answers

Whats the net force

zavuch27 [327]

Answer:

13n pushing left

Explanation:

1563 - 1550

3 0

3 years ago

A car turns a certain curve of radius 24.98 m with constant linear speed of

Anastaziya [24]

Answer:

3525.19 kg

Explanation:

The computation of the mass of the car is shown below:

As we know that

Fc = m × V^2 ÷ R

m = Fc × R ÷ V^2

Provided that:

Fc = 34.652 kN = 34652 N

R = Radius = 24.98 m

V = speed = 15.67 m/s

So,

m = 34652 × 24.98 ÷ 15.67^2

= 3525.19 kg

7 0

3 years ago

A 4-kg cat is resting on a bookshelf that is 2 m high. What is the cats gravitational potential energy relative to the floor if

ra1l [238]

The most exact answer is 78.4J also in this kind of options we can say answer "d"

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3 years ago