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atroni [7]
4 years ago
8

HELP MEEEE!!!!

Physics
1 answer:
NISA [10]4 years ago
8 0
A tidal power plant works by storing water in a special dam (called a barrage) during high tide. This water is released during low tide because of the difference in the amounts of stored water and ocean water. The sudden releasing of this water causes it to flow at it strongest past water turbines, which turn to create electricity.
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A 15.2 kg mass has a gravitational potential energy of -342 J. How high from the ground is it? Group of answer choices GPE canno
vredina [299]

A. The height above the ground reached by the mass is 2.3 m.

<h3>Height traveled by the mass</h3>

P.E = mgh

where;

  • m is mass
  • h is height reached by the object
  • g is acceleration due to gravity

h = P.E/mg

h = (342)/(15.2 x 9.8)

h = 2.3 m

Thus, the height above the ground reached by the mass is 2.3 m.

Learn more about gravitational potential energy here: brainly.com/question/1242059

#SPJ1

4 0
2 years ago
While riding in a moving car, you toss an egg directly upward. Does the egg tend to land behind you, in front of you, or back in
bazaltina [42]

Answer:

Explanation:

The movement of a body can be analyzed using New's first law. In an inertial frame (without acceleration) every body is kept at rest or moving at constant speed until there is an external force that changes this state

Let's analyze these cases in the framework of this first law

a) If the vehicle is going at constant speed the two bodies (the egg and the hands) do not change movement so he had returned to the hands

b) If the vehicle accelerates the passenger goes faster, but the egg that is not subject to anything does not change the movement, so it falls behind the passenger

c) If the vehicle slows down, the passenger reduces its speed and the distance traveled in time, but the egg that is not attached follows its movement and falls in front of the passenger.

4 0
3 years ago
We say that visible light has wavelength from 400nm to roughly 800nm. What is the biggest "energy-jump" (excited) for an atom if
icang [17]

Answer:

4.98\cdot 10^{-19} J

Explanation:

The energy of the emitted photon is inversely proportional to its wavelength, according to the equation:

E=\frac{hc}{\lambda}

where

h=6.63\cdot 10^{-34} Js is the Planck's constant

c=3.0\cdot 10^8 m/s is the speed of light

\lambda is the wavelength

This means that the biggest energy is released when the wavelength is the shortest. For a photon of visible light, the shortest wavelength is

\lambda=400 nm = 400\cdot 10^{-9} m

So, substituting into the equation, we find the corresponding energy:

E=\frac{(6.63\cdot 10^{-34})(3\cdot 10^8)}{400\cdot 10^{-9}}=4.98\cdot 10^{-19} J

6 0
4 years ago
Which feature of a wave determines uts color in
Kaylis [27]
The visible<span> spectrum contains numerous colors that are distinguished by </span>wavelength<span> and amplitude; </span>wavelength<span> determines color and amplitude determines brightness. </span>
8 0
3 years ago
James and Juan were at the highest point in the football stadium, dropping water balloons on people below. Many of the balloons
DaniilM [7]
It caused the balloons to turn into physical energy
4 0
4 years ago
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