2 years ago

How to calculate specific heat.

Physics

1 answer:

lana66690 [7]2 years ago

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A sphere has an unknown amount of charge distributed uniformly at a distance of 0.56cm from the center of the of the sphere, the

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4 years ago

how much does a bookshelf weigh if the movers are pushing it at a speed of 10 m/s^2 by applying 100 N force

Delicious77 [7]

Answer:

10 kg

Explanation:

Assuming a frictionless surface, then force F=ma where F is the applied force, m is the mass and a is acceleration. Making m the subject of the formula then $m=\frac {F}{a}$

Substituting 100 N for the applied force F and 10 m/s^2 for acceleration a then the value of m will be $m=\frac {100}{10}=10\ kgs$

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3 years ago

What is the distance to a star whose parallex is 0.1 sec?

Arte-miy333 [17]

Answer:

$30.86\times 10^{13} km$

Explanation:

Given the parallex of the star is 0.1 sec.

The distance is inversely related with the parallex of the star. Mathematically,

$d=\frac{1}{P}$

Here, d is the distance to a star which is measured in parsecs, and P is the parallex which is measured in arc seconds.

Now,

$d=\frac{1}{0.1}\\d=10 parsec$

And also know that,

$1 parsec=3.086\times 10^{13} km$

Therefore the distance of the star is $30.86\times 10^{13} km$ away.

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3 years ago

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3 years ago

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Which type of force is changing the object's speed and direction when a toy clown pops out of a jack-in-the-box?

Murrr4er [49]

I think it would be d because the spring or whatever was pushing until it reached the farthest it could then it would pull down but idrk

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3 years ago

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