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VMariaS [17]
4 years ago
8

Which uses motion of water in nature to produce electricity?

Physics
1 answer:
Zinaida [17]4 years ago
6 0

Answer: D. Hydroelectric power

Explanation: Hydroelectric means water power (not exactly but "hydro" is water and electric is well self explanatory)

You might be interested in
a 1 gram spiders sits on a platform rotating at 78 rpm. the spider is 15 cm from the centre disk. find the speed of the spider
olga nikolaevna [1]

The spider is traveling in a circle with radius = 15cm

The circumference of any circle = <em>2 pi (radius)</em>
The circumference of the spider's path = 2 pi (15 cm) = 30 pi cm

The spider completes a trip around this path 78 times per minute.
Its speed, relative to you, is   

                               (78) x (30 pi) cm/min =

                                       2,340 pi cm/min =  7,351.33 cm/min =

                                     <em>  73.5133 meter/min =</em>

                                       <em>4.411 km/hr =</em>

                                         <em>2.74  miles/hour

</em>
(After the last appearance of pi,
all numbers are rounded.)<em>

</em>
8 0
3 years ago
A particle performing uniform circular motion has angular momentum L. What will be the new angular momentum, if its angular freq
GaryK [48]

Answer:

Angular Momentum

Explanation:

3 0
3 years ago
Please help me i need help only way i’ll pass
pickupchik [31]

Answer:

they require a medium

Explanation:

your welcome.............

3 0
3 years ago
A damped LC circuit consists of a 0.17 μF capacitor and a 15 mH inductor with resistance 1.4Ω. How many cycles will the circuit
Dafna1 [17]

Answer:

number of cycles = 4.68 × 10⁴ cycles

Explanation:

     In damped RLC oscillation

voltage (V(t)) = V_o\ e^{-\dfrac{tR}{2L}}............(1)

given,

C = 0.17μF = 0.17 × 10⁻⁶ F

R = 1.4 Ω

L = 15 m H = 15 × 10⁻³ H              V(t) = V₀/2

From the equation (1)

\dfrac{V_0}{2} = V_0\ e^{-\dfrac{tR}{2L}}

 2 = e^{\dfrac{tR}{2L}}

taking log both side

ln ( 2 ) = \dfrac{tR}{2L}

t = \dfrac{2 L ln(2)}{R}

t = \dfrac{2 \times 15 ln(2)}{1.4}

t = 14.85 sec

time period

T= 2\pi \sqrt{LC}

T= 2\pi \sqrt{0.015 \times 0.17 \times 10^{-6}}

T = 3.172 × 10⁻⁴

number of cycle =\dfrac{t}{T}

                           =  \dfrac{14.85}{3.172 \times 10^{-4}}

  number of cycles = 4.68 × 10⁴ cycles

8 0
3 years ago
A 5400 kg elephant sees a mouse and turns the opposite direction with 8000N of force. What is the elephant's acceleration?
OlgaM077 [116]

Answer:

acceleration= force / mass

a= 1.48 m/sec^2

3 0
4 years ago
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