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stira [4]
4 years ago
10

A purse at radius 2.0 m and a wallet at radius 2.3 m travel in uniform circular motion on the floor of a merry-go-round as the r

ide turns the magnitude of the acceleration of the purse is 2.0 m/s/s. Determine the acceleration of the wallet.
Physics
1 answer:
horrorfan [7]4 years ago
4 0

Answer:

Explanation:

Given

radius of purse from center r_p=2\ m

radius of wallet from center r_w=2.3\ m

Merry - go - round is undergoing uniform circular motion therefore angular velocity is constant

acceleration of purse is equal to centripetal acceleration a_p=\omega ^2\times r

where \omega =angular\ velocity

2=\omega ^2\times 2

\omega =1\ rad/s

acceleration of wallet is

a_w=\omega ^2\times r_w

a_w=1\times 2.3=2.3\ m/s^2

 

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<u>Augmented reality</u> has the potential to superimpose digital data over real photos so that GPS maps can be combined with real pictures of stores and streets to help people locate their position.

<u>Explanation:</u>

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3 years ago
A radioactive material has a count rate of 400 per minute. It has a half life of 40 years. How long will it take to decay to a r
cestrela7 [59]

Answer:

160 years.

Explanation:

From the question given above, the following data were obtained:

Initial count rate (Cᵢ) = 400 count/min

Half-life (t½) = 40 years

Final count rate (Cբ) = 25 count/min

Time (t) =?

Next, we shall determine the number of half-lives that has elapse. This can be obtained as follow:

Initial count rate (Cᵢ) = 400 count/min

Final count rate (Cբ) = 25 count/min

Number of half-lives (n) =?

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Thus, 4 half-lives has elapsed.

Finally, we shall determine the time taken for the radioactive material to decay to the rate of 25 counts per minute. This can be obtained as follow:

Half-life (t½) = 40 years

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3 years ago
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Answer:

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3 years ago
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B. 1/2p
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