3 years ago

9. A sailor pulls a boat along a dock using a rope at an angle of 60.0° with the

Physics

1 answer:

aleksklad [387]3 years ago

6 0

Answer: (1) 3.83x10^3 J

Explanation:

(1) Fx=(255N)cos60°

dx=30.0m

w=Fx dx =(255)(cos60°)(30.0m)

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the frequency (in hz) of these vibrations if the car moves at 24.2 m/s is 605 HZ .

Calculation :

frequency = $\frac{number of contacts}{second}$

frequency = $\frac{24.2 m/s}{1}*100cm*\frac{1}{4cm}$

= 605 HZ

Frequency describes the number of waves passing through a particular location in a particular time. So if the wave takes 1/2 second to travel, the frequency is 2 per second. If it takes 1/100th of an hour, the frequency is 100 per hour.

Frequency is the number of occurrences of a repeating event per unit time. ... sometimes called time-frequency for clarity,

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1 year ago

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kozerog [31]

Answer:

29.5 ohms

Explanation:

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3 years ago

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3 years ago

A skater extends her arms, holding a 2 kg mass in each hand. She is rotating about a vertical axis at a given rate. She brings h

Usimov [2.4K]

Explanation:

It is known that relation between torque and angular acceleration is as follows.

$\tau = I \times \alpha$

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So, $I_{1} = 2 kg \times (1 m)^{2} + 2 kg \times (1 m)^{2}$

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$\tau_{1} = 4 kg m^{2} \times \alpha_{1}$

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Thus, we can conclude that the new rotation is $\frac{1}{4}$ times that of the first rotation rate.

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3 years ago

1. How many paths through which charge can flow would be shown in a diagram of a series

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