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allsm [11]
3 years ago
8

You push a 2.3 kg block against a horizontal spring, compressing the spring by 17 cm. then you release the block, and the spring

sends it sliding across a tabletop. it stops 88 cm from where you released it. the spring constant is 200 n/m. what is the block–table coefficient of kinetic friction?
Physics
1 answer:
horsena [70]3 years ago
6 0
Some dogs may inherit a susceptibility to epilepsy.

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Why do objects that lie half in and half out of water appear distorted?
trasher [3.6K]
Because upward buoyant force is slightly higher than gravitation force for this particular  object 

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Define reversible change​
inysia [295]

A reversible change is a change that can be undone or reversed

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3 years ago
What is the density of 18.0-karat gold that is a mixture of 18 parts gold, 5 parts silver, and 1 part copper? (These values are
nexus9112 [7]

Answer:

Density of 18.0-karat gold mixture is 15.58 g/cm^3.

Explanation:

A mixture of 18 parts gold, 5 parts silver, and 1 part copper.

Let mass of gold be 18x

Let the mass of silver be 5x

Let the mass of copper be 1x

The density of gold = 19.32g/cm^3

The density of silver = 10.1g/cm^3

The density of copper =8.8g/cm^3

Volume=\frac{Mass}{Density}

Volume of the gold in the mixture = V_1=\frac{18x}{19.32 g/cm^3}

Volume of the silver in the mixture = V_2=\frac{5x}{10.1 g/cm^3}

Volume of the copper in the mixture = V_3=\frac{1x}{8.8 g/cm^3}

Mass of the mixture = M = 18x+5x+1x =24x

Volume of the mixture = V_1+V_2+V_3

Density of the mixture:

\frac{M}{V_1+V_2+V_3}=15.58 g/cm^3

8 0
3 years ago
Which of the following is true concerning nuclear fusion?
Artyom0805 [142]
Choice-a is a very rubbery, imprecise, ambiguous, slippery statement. But it's probably less wrong than any of the other choices on the list.
6 0
2 years ago
How do you do this problem?
mojhsa [17]

Answer:

C

Explanation:

When A and B come in contact with each other, +12 - 12 = 0 so their changes cancel.

Now C has a charge of +12

When A and C come together they each have an equal share of that 12, so each of them has 6

So the answer is

A       B       C

6        0       6

which is C

4 0
2 years ago
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