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3 years ago

What is science? Illustrate Ur views?

Physics

2 answers:

jarptica [38.1K]3 years ago

5 0

Answer:

Science is

Explanation:

he intellectual and practical activity encompassing the systematic study of the structure and behaviour of the physical and natural world through observation and experiment.

EleoNora [17]3 years ago

3 0

Science is the Intellectual and practical practices that include a structural analysis by observation and experimentation of the nature and behavior of the physical and natural worlds.

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A bathtub has 62.7 kg of water at 31.0

Bogdan [553]

m = mass of water in bathtub = 62.7 kg

$T_{ti}$ = initial temperature of water in tub = 31 c

M = mass of water added = ?

$T_{ai}$ = initial temperature of water added = 76 c

T = final equilibrium temperature of the system = 40.3 c

c = specific heat of water = 4186

Using conservation of heat

Heat gained by water in tub = Heat lost by water added

m c (T - $T_{ti}$ ) = M c ( $T_{ai}$ - T)

m (T - $T_{ti}$ ) = M ( $T_{ai}$ - T)

(62.7) (40.3 - 31) = M (76 - 40.3)

M = 16.3 kg

5 0

3 years ago

What is part of a line has one endpoint and continues in one direction?

noname [10]

Answer:

A Ray I believe since it sounds like it.

6 0

4 years ago

Which form of energy is involved in weighting fruit on a spring scale ?

alexdok [17]

The correct answer is elastic potential energy.

I hoped this helped!

5 0

4 years ago

Read 2 more answers

A geosynchronous satellite orbits Earth at a distance of 42,250 km from the center of Earth and has a period of 1 day. What is t

yan [13]

Answer:

The centripetal acceleration of the satellite is $a=0.22\ m/s^2$ .

Explanation:

Given that,

The distance covered by a geosynchronous satellite, d = 42250 km

The time taken by the satellite to covered distance, t = 1 day = 24 hours

Since, 24 hours = 86400 seconds

Let v is the speed of the satellite. It is given by the total distance divided by total time taken such that :

$v=\dfrac{d}{t}$

$v=\dfrac{2\pi d}{t}$

$v=\dfrac{2\pi\times 42250 \times 10^3}{86400 }$

v = 3072.5 m/s

The centripetal acceleration of the satellite is given by :

$a=\dfrac{v^2}{d}$

$a=\dfrac{(3072.5)^2}{42250 \times 10^3}$

$a=0.22\ m/s^2$

So, the centripetal acceleration of the satellite is $a=0.22\ m/s^2$ . Hence, this is the required solution.

7 0

3 years ago

You are looking down on a 20 kg beam resting on a horizontal, frictionless surface. The beam is 2 m long and can pivot about one

Korolek [52]

The angular speed of the rod after the impact is 1.49 rad/s

What is angular speed?

The rate of change of angular displacements is known as angular speed.

Angular speed is a scalar measure of the rotating object.

What is Angular momentum?

It is the property of a rotating body given by the product of the moment of inertia and the angular velocity of the rotating object.

Angular momentum is expressed as follows:

L=m*v*r

Here,

mass of beam, M =20 kg

mass of rock, m =0.1 kg

length of the beam, L =2 m

length where rock slides, l = (L / 2), l = 1 m

velocity of rock, v =400 m/s

As here the Torque on which the system is zero implies that the angular momentum is conserved.

Initial angular momentum for rock: I(ri) = m*v*r

Final angular momentum for rock: I(rf) = m*w*r^2

Final angular momentum for beam: I(bf) = 1/3 (M*L^2w)

Now, According to the conservation of momentum:

m*v*r = m*w*r^2 + 1/3 (ML^2w)

w = m*v*r / ( mr^2 + 1/3 ML^2 )

w = 0.1 *400*1 / ( (0.1 * 1) + 1/3 20* 2^2 )

w = 1.49 rad / s

The angular speed of the rod after the impact is 1.49 rad/s

Learn more about Angular speed here:

<u>brainly.com/question/14663644</u>

#SPJ4

6 0

2 years ago

What is science? Illustrate Ur views?​

What is science? Illustrate Ur views?