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ollegr [7]
3 years ago
14

Four friends each took a different path walking from the drinking fountain to the cypress tree the table shows the distance that

each them walked who walked the further distance?
Physics
1 answer:
lorasvet [3.4K]3 years ago
5 0

Answer:

:)

Explanation:

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Electric power is to be generated by installing a hydraulic turbine-generator at a site 120 m below the free surface of a large
iogann1982 [59]

Answer:

P = 2234400 Watt

Explanation:

Power generation is given as rate of work done

Here the turbine generator is located at 120 m below the free surface

So here rate of work done is given as rate of potential energy

Power = \frac{dw}{dt}

Power = \frac{mgh}{t}

so we have

Power = (\frac{dm}{dt})gh

now we have

Power = 1900(9.8)(120) = 2234400 Watt

so the power generation potential will be 2234400 Watt

8 0
3 years ago
Draw two unique free body diagrams that each show a net force of 30 N to the left.​
Reil [10]

Answer:

just trace a picture of it.

7 0
4 years ago
What is the final velocity of a car that is originally traveling 12 m/s and then undergoes an acceleration of 2.3m/s squared for
Katarina [22]

To solve this problem we use the general kinetic equations.

We need to know the time it takes for the car to reach 130 meters.

In this way we have to:

x(t) = x_0 + v_0t + 0.5at ^ 2

Where

x_0 = initial position

v_0 = initial velocity

a = acceleration

t = time

x(t) = position as a function of time

130 = 0 + 12(t) + 0.5(2.3)t ^ 2

1.15t ^ 2 + 12t - 130.

We use the quadratic formula to solve the equation.

t = \frac{-12 \± \sqrt {(12) ^ 2-4(1.15)(- 130)}}{2 (1.15)}

t = 6.63 s and t = -17.1 s

We take the positive solution. This means that the car takes 6.63 s to reach 130 meters.

Then we use the following equation to find the final velocity:

v_f = v_0 + at

Where:

v_f = final speed

v_f = 12 +2.23(6.63)

The final speed of the car is 27.25 m/s

3 0
4 years ago
Date
Sphinxa [80]

Explanation:

Given: time= 3 minutes

Distance =18 km

Speed = distance / time

= 18/3

=6 km/min

(I don't know in what unit u want the answer)

Hope this helps and answers your question..

Good Luck

6 0
3 years ago
When large amplitude sound vibrates the ear significantly, a _______ results.
kondaur [170]
D loud sound

Hope this helped:)
4 0
3 years ago
Read 2 more answers
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