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tiny-mole [99]
2 years ago
15

A pendulum swings back and forth. If the mass of the pendulum is 3kg and it starts from a height of 1m.How much kinetic energy d

oes it have at 0.5m?
Physics
1 answer:
tatiyna2 years ago
8 0

From the principle of energy conservation, the kinetic energy of the pendulum at 0.5 m is 14.7 J.

<h3>What is a pendulum?</h3>

A pendulum swings back and forth and can be used to show the change of potential energy to kinetic energy and vice versa.

Given that the kinetic energy is converted to the potential energy; the potential energy at 0.5 m is 3 * 9.8 * 0.5 = 14.7 J.

Following the principle of energy conservation, the kinetic energy of the pendulum at 0.5 m is 14.7 J.

Learn more about pendulum:brainly.com/question/14759840

#SPJ1

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Answer:

In the absence of air resistance. I think no. D ) The bowling ball.

<em><u>Hope</u></em><em><u> this</u></em><em><u> helps</u></em><em><u>.</u></em><em><u>.</u></em><em><u>.</u></em>

7 0
3 years ago
Susan is quite nearsighted; without her glasses, her far point is 34 cm and her near point is 17 cm . Her glasses allow her to v
butalik [34]

Answer:

u=34cm

Explanation:

From the question we are told that:

Far point is V=34 cm

Near point is u=17 cm

Therefore

Focal Length

f=-34cm

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\frac{1}{u}=\frac{1}{f}-\frac{1}{v}

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u=34cm

5 0
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Which of the following statements best describes earths mineral resources
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8 0
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It is known that birds can detect the earth's magnetic field, but the mechanism of how they do this is not known. It has been su
san4es73 [151]

Answer:

EMF = 5.01 \times 10^{-4} Volts

Explanation:

Here we know that the EMF induced in this Field is given as

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here B = perpendicular component of magnetic field

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L = length of the wings

now we have

B = 5\times 10^{-5} sin40

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now we have

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EMF = 5.01 \times 10^{-4} Volts

8 0
3 years ago
. A 1.50kg mass on a spring has a displacement as a function of time given by the equation: x(t) = (7.40cm)cos[(4.16s-1)t – 2.42
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Answer:

Solution:

we have given the equation of motion is x(t)=8sint [where t in seconds and x in centimeter]

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now at time t=2pi/3,

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so at present the direction is in y-axis.

5 0
3 years ago
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