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3 years ago

A piece of cork has a volume of 10 cm cube. find the net force on the cork if it is completely submerged and then released.

Physics

1 answer:

Ronch [10]3 years ago

8 0

Answer:

Explanation:

The force required to submerge something underwater can be found from Archimedes principle:

FB=pwVg

Where FB is the buoyant force, pw is the density of water (1g/ml), V is volume of the water displaced, and g is gravity. The key here is V. The volume of water displaced by the cork is equal to the volume of cork. Therefore, the required force is

F=1 g/cm³ x 10 cm³ x 9.8 m/s²= 98 N

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compare 51.5 hectograms to 51500 decigrams. How do each of these values compare to a gram, and which represents a larger mass?

Olin [163]

These values when compared seem to be the same. They are equal. If we convert them to the same units, they results to the value which is:

51.5 Hectograms = 5100 Grams

51,500 Decigrams = 5100 Grams

Hope this answers the question. Have a nice day.

7 0

3 years ago

A 10-cm-long archerfish begins such a leap with its body vertical in the water, using its fins and undulating its body to propel

siniylev [52]

Answer:

Explanation:

Velocity will be equal to the area under the curve of the acceleration-time plot.

v = ½(45)(0.075) = 1.6875

v = 1.7 m/s

h = (0² - 1.6875²) / (2(-9.8)) = 0.145288...

h = 15 cm

3 0

3 years ago

A 95 N force exerted at the end of a 0.50 m long torque wrench gives rise to a torque of 15 N · m. What is the angle (assumed to

o-na [289]

Answer:

angle = 18.40 degree

Explanation:

given data

force = 95 N

distance = 0.50 m

torque = 15 N · m

to find out

angle between the wrench handle and the direction of the applied force

solution

we will apply here torque equation that is express as

torque = distance × force × sin(θ) ...................1

put here value we will get angle that is

15 = 0.50 × 95 × sin(θ)

sin(θ) = 0.315789

θ = 18.40 degree

6 0

3 years ago

Read 2 more answers

Use Hooke's Law to determine the variable force in the spring problem. A force of 7 pounds compresses a 15-inch spring a total o

Harman [31]

Work done in compressing spring = 40.833

It simply needs a three-inch compression by applying a compressive force to a 15-inch long spring. we know that F(x)=kx. To act in displacement X and the poles' values cannot be substituted. Consequently, there will be 4. The spring constant K is therefore equal to 5, so. Three fit within this slot. We consequently derive the compressing spring constant K from this. , which is 5, 3. Now change this formula to include the value of the compressing spring constant. Four f will therefore equal 5.3 x and vice versa. Integration of four factors equals W.

In order to ensure the limit and further all of this, we currently have the range 0–7. Thus, this compressing spring task is completed. W is equal to 40.833

To learn more about Compressing spring please visit
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7 0

2 years ago

If the frequency of the disorder in the population is 0.000081, what is the percentage of heterozygous carriers?

patriot [66]

The frequency of the disorder in the population is 0.000081, So, the percentage of heterozygous carriers would be 0.018.

Unlike homozygous, being heterozygous means you have two different alleles. You inherited a different version from each parent. In a heterozygous genotype, the dominant allele overrules the recessive one. Therefore, the dominant trait will be expressed. The recessive trait won't show, but you're still a carrier.

The presence of two different alleles at a particular gene locus. A heterozygous genotype may include one normal allele and one mutated allele or two different mutated alleles.

The Hardy-Weinberg equation is given by :

⇒ p² + 2pq + q² = 1

Here, p and q represent the individual allele frequencies.

Therefore, p² = frequency of homozygous condition represented by p.

q² = frequency of homozygous alleles represented by q.

and 2pq = frequency of heterozygous condition.

So, the correct answer is '2pq'.

⇒ (aa) q² = 0.000081,

⇒ (a) q = 0.009,

⇒ (A) p = 0.991,

⇒ (Aa) 2pq,

⇒ 0.018.

To learn more about heterozygous carriers here

brainly.com/question/17458395

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8 0

2 years ago