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hram777 [196]
2 years ago
15

Calculate the work done when a 100-W lightbulb is lit for 30 seconds.

Physics
1 answer:
Mila [183]2 years ago
8 0

Answer:

3000 J

Explanation:

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nexus9112 [7]
Because they are different they all show different traits.
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You serve a volleyball with a mass of 2.5 kg. The ball leaves your hand with a speed of 23 m/s. What is the kinetic energy of th
Zarrin [17]

Answer:

661.25, I believe!

Explanation:

KE = (1/2)(2.5)(23)^2

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3 years ago
The time T in seconds for a pendulum of length L feet to make one swing is given by Upper T=2\pi \sqrt((L)/(36)). How long is a
Andreyy89

Answer:

3.6ft

Explanation:

Using= 2*π*sqrt(L/32)

To solve for L, first move 2*n over:

T/(2*π) = sqrt(L/32)

Next,eliminate the square root by squaring both sides

(T/(2*π))2 = L/32

or

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Lastly, multiply both sides by 32 to yield:

32T2/(4π2) = L

and simplify:

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Hence, L(T) = 8T²/π²

But T = 2.1

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8(2.1)²/3.14²

35.28/9.85

= 3.6feet

5 0
2 years ago
10.A car is travelling at a constant speed of 27m/s. The driver looks away from the road for a 2.0s to tune in a station on the
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Explanation:

Distance = speed × time

d = (27 m/s) (2.0 s)

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3b. Grace drives her car with a constant speed
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<em>Time = 4 hours</em>

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3 years ago
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