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Alex777 [14]
3 years ago
10

What is beach nourishment

Physics
1 answer:
guajiro [1.7K]3 years ago
4 0
Beach nourishment describes a process by which sediment, usually sand, lost through longshore drift or erosion is replaced from other sources. A wider beach can reduce storm damage to coastal structures by dissipating energy across the surf zone, protecting upland structures and infrastructure from storm surges, tsunamis and unusually high tides
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A negatively charged particle (charge = -1e) has a velocity of 6.0 × 106 m/s in the positive x direction at a point where the ma
Anni [7]

Answer:

a=2.6x10^{18} m/s^2

Explanation:

v=6.0x10^6 m/s, q=1.6x10^{-19}C, q=9.11x10^{-31}kg

\beta=\beta_x=3.0T, \beta_y=1.5 T, \beta_y=2.0 T

F_b=q*\left[\begin{array}{ccc}i&j&k\\6x10^6&0&0\\3&1.5&2\end{array}\right]

F_b=-1.6x10^{-19}C*[-12x10^6 j + 9x10^6 k]

F_b=m*a

19.2x10^{-13}j-14.4x10^{-13}k=m*a

a=\frac{19.2x10^{-13}}{9.11x10{-31}}-\frac{14.4x10^{-13}}{9.11x10{-31}}

a=2.107 x10^{18}j-1.58x10^{18}k

a=\sqrt{(2.107x10^{18})^2-(1.57x10^{18})^2}

a=2.6x10^{18} m/s^2

7 0
3 years ago
If a closed bottle of gas is chilled, what will happen to the entropy in the bottle?
larisa [96]

Answer:

A.Increase

Explanation:

It will increase because it it gets more dense

8 0
4 years ago
Newton first law of motion​
Kaylis [27]

Answer:

His first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. ... The amount of the change in velocity is determined by Newton's second law of motion.

6 0
3 years ago
Read 2 more answers
How long does it take a car travelling at 80 m/s to decelerate to 18 m/s with an acceleration rate of -16m/s?
sertanlavr [38]
  • initial velocity=u=80m/s
  • Final velocity=v=18m/s
  • Acceleration=a=-16m/s^2
  • Time=t

We know

\boxed{\sf a=\dfrac{v-u}{t}}

\\ \sf\longmapsto t=\dfrac{v-u}{a}

\\ \sf\longmapsto t=\dfrac{18-80}{-16}

\\ \sf\longmapsto t=\dfrac{-62}{16}

\\ \sf\longmapsto t=3.8s

4 0
3 years ago
the second law of thermodynamics states that thermal energy can floe from colder objects to hotter objects?
hodyreva [135]
BIg, big questions in Thermodynamics. ...
Not without "help" it can't. There are two versions of this. One is that it is impossible to take heat from something and convert it completely into work - there has to be some waste at a lower temperature. The other is that heat will not "spontaneously" go from a colder place to a warmer place. So, a domestic fridge needs a device to transfer the heat, that's that buzzing sound of a motor driving a refrigerant round in a cycle, taking heat out the fridge and making the surrounding warmer. It's also called a heat pump. The area near where the pump puts its heat can be felt to be warm. 
8 0
4 years ago
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