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algol [13]
4 years ago
9

What is the main source of energy?

Physics
1 answer:
Kryger [21]4 years ago
4 0
 the end, all the energy that we use comes from two sources; the sun (fossil fuels, solar panels, hydro power, and wind energy), and its predecessor, some supernova that created the very heavy atoms (uranium, thorium) which are still around that provide us with geothermal heat and nuclear reactors
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What's the relationship between potential energy and a position of a rock
Hunter-Best [27]
When a rock is pick up and thrown it's showing potential energy
4 0
3 years ago
an input force of 50 Newtons is applied through a distance of 10 meters to machine with mechanical advantage of 3. If the work o
gladu [14]
The output of the machine is

                                      (output work) =  (output force) x (distance)

                                        450 N-m      =  (output force) x (3 meters)

Divide each side
by  3 meters:                Output force = (450 N-m) / (3 m)

                                                           =    150 newtons .

With all the information given about the output work, we don't need
to know anything about the input work, or even the fact that we're
dealing with a machine.

It's comforting, though, to look back and notice that the output work
(450 N-m) is not more than the input work (500 N-m).  So everything
is nice and hunky-dory.
___________________________________

Well, my goodness !
I didn't even need to go through all of that.

Given:

-- The input force to the machine is 50 newtons.

-- The mechanical advantage of the machine is 3 .

That right there tells us that

-- The output force of the machine is 150 newtons.

We don't need any of the other given information.
5 0
3 years ago
An electric field of magnitude 2.35 V/m is oriented at an angle of 25.0° with respect to the positive z-direction. Determine the
zzz [600]

Answer:

The magnitude of the electric flux is 3.53\ N-m^2/C

Explanation:

Given that,

Electric field = 2.35 V/m

Angle = 25.0°

Area A= 1.65 m^2

We need to calculate the flux

Using formula of the magnetic flux

\phi=E\cdot A

\phi = EA\cos\theta

Where,

A = area

E = electric field

Put the value into the formula

\phi=2.35\times1.65\times\cos 25^{\circ}

\phi=2.35\times1.65\times0.91

\phi=3.53\ N-m^2/C

Hence, The magnitude of the electric flux is 3.53\ N-m^2/C

8 0
3 years ago
Which landform is created by a glacier
MAXImum [283]
<span>Landforms include striations, cirques, glacial horns, arêtes, trim lines, U-shaped valleys, </span>roches moutonnées<span>, overdeepenings and hanging valleys. These are all created by Glaciers!
</span>
7 0
3 years ago
Read 2 more answers
How long does it take oxygen to diffuse a distance of 1 mm in water at room temperature? How long does it take oxygen to diffuse
Viktor [21]

Answer:

option A

Explanation:

given,

travel distance = 1 mm

diffusion constant for the  molecule  of oxygen in water = 1 x 10⁻⁹ m²/s

we know that

 t = \dfrac{x^2}{2D}

t is the time taken for diffusion

x = 1 mm = 10⁻³ m

D is the diffusion

 t = \dfrac{(10^{-3})^2}{2\times 10^{-9}}

 t = \dfrac{(10^{3})}{2}

        t = 500 s

so, the option to the answer is 170 s

the correct answer is option A

8 0
4 years ago
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