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3 years ago

WHY IS LIFE SO IMPORTANT?

Physics

2 answers:

Anon25 [30]3 years ago

8 0

Because life tell many more things which we don't know give happiness, tell us to enjoy sometimes give pain and sadness.

Life tell different things.Life is very important.

We don't have to lost our life.

You are army na just chill Have a nice day and stay gold.

s2008m [1.1K]3 years ago

5 0

Answer:

The water and sleep

Explanation:

But is necessari

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Find the ratio of the lengths of the two mathematical pendulums, if the ratio of periods is 1.5

juin [17]

Answer:

The ratio of lengths of the two mathematical pendulums is 9:4.

Explanation:

It is given that,

The ratio of periods of two pendulums is 1.5

Let the lengths be L₁ and L₂.

The time period of a simple pendulum is given by :

$T=2\pi \sqrt{\dfrac{l}{g}}$

$T^2=4\pi^2\dfrac{l}{g}\\\\l=\dfrac{T^2g}{4\pi^2}$

Where

l is length of the pendulum

$l\propto T^2$

$\dfrac{l_1}{l_2}=(\dfrac{T_1}{T_2})^2$ ....(1)

ATQ,

$\dfrac{T_1}{T_2}=1.5$

Put in equation (1)

$\dfrac{l_1}{l_2}=(1.5)^2\\\\=\dfrac{9}{4}$

So, the ratio of lengths of the two mathematical pendulums is 9:4.

3 0

3 years ago

What is an example of Convection?

yKpoI14uk [10]

Boiling water. <span>heat goes from the burner into the pot which heats the water at the bottom. this hot water rises and cooler water moves down to replace it, causing a circular motion.</span>

3 0

3 years ago

State two units bigger than kilogram and how are they related to kilogram

stealth61 [152]

Answer:

quintal and metric tone.

Explanation:

1 quintal= 100kg

1 metric =1000kg

quintal measures mass of cars, trucks etc, but metric measures bigger things like cargo ships

hope it helps

3 0

3 years ago

the coefficient of kinetic friction between a couch and the floor is 0.65. if the couch has a mass of 42 kg and you push it with

Anna [14]

Explanation:

The net force along the horizontal direction is

$\sum{F_x} = F_{applied} - f$

where f is the frictional force. We can find the frictional force by looking at the vertical forces acting on the couch:

$\sum{F_y} = N - mg = 0 \Rightarrow N = mg$

From the definition of frictional force,

$f = \mu{N} = \mu{mg} = (0.65)(42\:\text{kg})(9.8\:\text{m/s}^2)$

$\:\:\:\:= 267.5\:\text{N}$

Therefore, the net force on the couch is

$\sum{F_x} = 600\:\text{N} - 267.5\:\text{kN} = 332.5\:\text{N}$

4 0

3 years ago

Calculate the focal length of the mirror formed by the convex side of a shiny spoon that has a 1.54 cm radius of curvature. (b)

blondinia [14]

Explanation:

It is given that,

Radius of curvature of the mirror, R = 1.54 cm

(a) We have to find the focal length of the mirror. The relationship between the focal length and the radius of curvature is given by :

$R=2f$

f = focal length of the mirror

$f=\dfrac{1.54\ cm}{2}$

f = 0.77 cm

(b) The power of mirror is given by the reciprocal of focal length i.e.

Power, $P=\dfrac{1}{f}$

P = 1.29 diopters

Hence, this is the required solution.

6 0

4 years ago

WHY IS LIFE SO IMPORTANT?​

WHY IS LIFE SO IMPORTANT?