2 years ago

Please help with these questions

Physics

1 answer:

lord [1]2 years ago

8 0

When do you gotta turn it in?

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9) What will happen to the period of a pendulum if we change the rope of a pendulum with another which is four times with the in

Arturiano [62]

Double

Explanation:

Since the period T of a pendulum is given by

$T = 2\pi \sqrt{\dfrac{l}{g}}$

By increasing the length of the pendulum by 4, the period becomes

$T' = 2\pi \sqrt{\dfrac{4l}{g}} = 2\left(2\pi \sqrt{\dfrac{l}{g}}\right) = 2T$

You can see that the period doubles when we increase the length by a factor of 4.

5 0

3 years ago

Doyle learned that only one side of the Moon is ever visible from Earth. He wants to investigate how the moon moves around the E

alisha [4.7K]

Your answer is C. Development of a model

3 0

3 years ago

calculate the percentage increase in speed of the cyclist when the power output changes from 200W to 300W

Likurg_2 [28]

Answer:

50%

Explanation:

That would be the amount

4 0

3 years ago

1. A ball falls from a height "h" from a tower. Which of the following statements is true?

Strike441 [17]

Answer:

the total kinetic and potential energy of the ball is constant (mechanical energy remains the same)

Explanation:

As the ball falls, kinetic energy is increased in direct relation with the decrease in potential energy

ΔKE + ΔPE = 0

4 0

3 years ago

Help Please

densk [106]

Answer:

Energy=3.1times 10^-17 J

Rest mass: 6.2 kg

Speed: 47.5 m/s

Wavelength: 2.659 times 10^-6

Momentum: 67.3 kg(m/s)

Explanation:

3 0

3 years ago