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3 years ago

15

A glass containing water is in the shape of a right circular cylinder with a radius of 3

1 answer:

Lubov Fominskaja [6]3 years ago

5 0

Answer:

Step-by-step explanation:

The equation for a cylinder is the radius of the circle times pi squared, multiplied by the height. 3 squared is 9, times pi is 9(pi). If we multiply this by the height, the answer is 90(pi) centimeters in volume.

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4÷6.12= <br> what is the answer?

Ede4ka [16]

Answer:

0.65359477124. this is probably the wrong answer so I'm just gonna guess u needed the answer the other way around because it makes more sense so 6.12 ÷ 4 = 1.53.

Step-by-step explanation:

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2 years ago

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bearhunter [10]

Answer: I think 7

Step-by-step explanation:

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2 years ago

When I solve this problem I get a big number, and I don't kwow if it's Ok:

Jlenok [28]

Answer:

undefined

Step-by-step explanation:

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2 years ago

Use Hooke's Law to determine the work done by the variable force in the spring problem. A force of 450 newtons stretches a sprin

vlada-n [284]

Answer:

The work done is 202.50Nm

Step-by-step explanation:

Given

$F =450N$

$x_1 = 30cm$

$x_2 = 60cm$

Required

The work done

First, we calculate the spring constant (k)

$F = kx_1$

$450N = k *30cm$

$k = \frac{450N}{30cm}$

$k =15N/cm$

So:

$F = kx_1$

$F(x) = 15x$

The work done using Hooke's law is:

$W =\int\limits^a_b {F(x)} \, dx$

This gives:

$W =\int\limits^{60}_{30} {15x} \, dx$

Rewrite as:

$W =15\int\limits^{60}_{30} {x} \, dx$

Integrate

$W =15 \frac{x^2}{2}|\limits^{60}_{30}$

This gives:

$W =15 *\frac{60^2 - 30^2}{2}$

$W =15 *\frac{2700}{2}$

$W =15 *1350$

$W =20250N-cm$

Convert to Nm

$W =\frac{20250Nm}{100}$

$W =202.50Nm$

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2 years ago

What expression shows the relationship between the value of any term and n, its position in the sequence for the given sequence?

mafiozo [28]

Answer: -3n-2.

Because for the first term, for example, plug in 1, you'll get -3(1)-2=-3-2=-5, which is the first one. Try it with all terms.

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2 years ago