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adoni [48]
2 years ago
9

What is a disadvantage of constructing hydroelectric dams as a source of

Physics
1 answer:
Papessa [141]2 years ago
8 0

Answer:

I think maybe C. They require a large amount of land disturbance and potential displacement of people

Explanation:

Hope this helps.

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Reeti has a mass of 51.0 kg. The Gravitron, a ride that spins so fast that the floor can be removed without the riders falling,
Serggg [28]

Answer:

L = 2774.4 kgm^{2}/s

Explanation:

Using the formula

L = mvr

Where L is angular momentum

m is mass

v is velocity

r is radius

m= 51kg , v=17m/s , r=3.2m

L = 51×17×3.2

L = 2774.4 kgm^{2}/s

7 0
2 years ago
My question is An object may be acted on by several forces. What name is given to the single force that has the same effect as t
wariber [46]
Newtons Law of motion
6 0
3 years ago
Read 2 more answers
Un autocar que circula a 81 km/h frena uniformemente con una aceleración de -4,5 m/s2.
horsena [70]

Answer:

a) \Delta x=56.25 m

b) imagen adjunta

Explanation:

a) Primero debemos hacer la conversión de 81 km/h a m/s, esto es 22.5 m/s.

Ahora, usando la ecuacion cinemática, en un movimiento acelerado tenemos:

v_{f}^{2}=v_{0}^{2}+2a \Delta x

Queremos encontrar la posición hasta detenerse, osea vf = 0.

\Delta x=\frac{-v_{0}^{2}}{2a}

\Delta x=\frac{-22.5^{2}}{-2*4.5}

\Delta x=56.25 m

b) Para este caso el gráfico se encuentra adjunto.                                      

Espero que te sirva de ayuda!                                                                                                                                                                          

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8 0
3 years ago
A force of 19 newtons is applied on a cart of 2 kilograms, and it experiences a frictional force of 1.7 newtons. What is the acc
amid [387]
A= f/m

a= 19/2

a= 9.5m/s^2
8 0
3 years ago
What was the most serious money problem faced by people in the early United States?
alexira [117]
<span>♥B. There was no single medium of exchange.♥
Take a look at the saying </span><span>"Not worth a Continental".
It referrers to the fact that </span><span>currency issued by the Continental Congress was usually just a promise to pay.
Leaving your answer with ♥B♥</span>
5 0
3 years ago
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