If a tank filled with water contains a block and the height of the water above point A within the block is 0.6 meter, what's the pressure at point A?

A. 9.80 kPa
B. 3.85 kPa
C. 7.84 kPa
D. 5.88 kPa

Length contraction is the shortening of an object's measured length when it is moving relative to the observer's frame. The formula for length contraction is L = L0√(1 - (v^2/c^2)).

Length contraction (L) is the shortening of the measured length of an object moving relative to the observer's frame. It occurs when an object is moving at a significant fraction of the speed of light. The formula for length contraction is L = L0√(1 - (v2/c2)), where L0 is the rest length of the object, v is its velocity, and c is the speed of light.

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Answer:

6280

Step-by-step explanation:

It's 6280

Answer:

1.68 kilo grams are required for 14 people.

Step-by-step explanation:

First of all the answer is required in kilo grams and the data given is in grams.

Lets convert the given value to kilo grams;

480 grams = 0.48 kilo grams

If 0.48 kilo grams are required to cater 4 people then how many kilo grams are required to cater 14 people?

⇒[tex]\frac{0.48}{4} *14[/tex] kilo grams

1.68 kilo grams.

Answer:

The median of the data set is 14.

Answer:

just to sum up the answer it is 6.5*10^2

The square root of a negative number is imaginary, there are no real solutions to the equation x² - x = 2.

The equation using the quadratic formula:

x = (-b ± √(b² - 4ac)) / 2a

Where:

a is the coefficient of the x² term

b is the coefficient of the x term

c is the constant term

In the equation x² - x = 2, we have:

a = 1

b = -1

c = 2

Plugging these values into the quadratic formula, we get:

x = (1 ± √((-1)² - 4(1)(2))) / 2(1)

Simplifying the expression, we get:

x = (1 ± √(1 - 8)) / 2

Evaluating the square root, we get:

x = (1 ± √(-7)) / 2

Since the square root of a negative number is imaginary, there are no real solutions to the equation x² - x = 2.

For similar question on quadratic formula.

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Final answer:

The 90% confidence interval estimate of the population standard deviation is (0.97, 274).

Explanation:

To estimate the population standard deviation with a 90% confidence interval, you can use the formula:

CI = [s * sqrt(n-1) / sqrt(chi-squared lower value), sqrt(chi-squared upper value))]

where s is the sample standard deviation, n is the sample size, and chi-squared lower and upper values are obtained from a chi-squared distribution table. For a 90% confidence interval, the chi-squared lower value is 0.05 and the chi-squared upper value is 0.95 for the given sample size of 31. Plugging in the values:

CI = [50 * sqrt(31-1) / sqrt(0.05), sqrt(0.95))] = [50 * sqrt(30) / sqrt(0.05), sqrt(0.95))] = [50*5.48, 0.97] = [274, 0.97]

Therefore, the 90% confidence interval estimate of the population standard deviation is (0.97, 274).

Answer:

All options are correct except Δx = 0.

So select: Δy = 0 Δy = n Δx = n Δy = -n  Δx = -n

Step-by-step explanation:

Δy can be positive, negative, or zero. The value of  Δx can be positive or negative but not zero. From Odyssey ware.

Final answer:

The question pertains to creating five-digit numbers using the digits 0, 1, 2, and 3, with the restriction that the digit 0 cannot be used as the first digit. We consider the choices for each digit, leading to a total of 768 different combinations.

Explanation:

The student is asking about forming five-digit numbers with a set of digits 0, 1, 2, 3. To create five-digit numbers with these digits, we need to consider that each digit position can be one of these four digits. The fact that 0 is included as one of the possible digits is significant because it means 0 cannot be used as the first digit in a five-digit number as that would create a four-digit number.

Since there are restrictions on the use of 0 in the first position, the first position can only be filled with digits 1, 2, or 3, providing us with three choices for the first digit. The remaining four positions can be filled by any of the four digits (0, 1, 2, 3) without restriction. Thus, for each of the remaining four positions, we have four choices.

To calculate the total number of different five-digit numbers that can be formed, we would multiply the number of choices for each position, which yields 3 choices for the first digit and 4 choices for each of the remaining four digits. Therefore, the formula becomes 3 * 4 * 4 * 4 * 4, which equals 768 different five-digit numbers.

There are 768 five-digit numbers that can be formed using the digits {0, 1, 2, 3}.

To find out how many five-digit numbers can be formed using the set of digits {0, 1, 2, 3}, we can use the concept of permutations.

Since we want to form a five-digit number, we have 5 positions to fill. For each position, we have 4 choices: 0, 1, 2, or 3.

However, since the number cannot start with 0, we have only 3 choices for the first digit.

After choosing the first digit, the remaining four positions can be filled with any of the digits {0, 1, 2, 3}.

So, the total number of five-digit numbers that can be formed using the given set of digits is:

3 (choices for the first digit) × 4 (choices for each of the remaining four digits) × 4 (choices for each of the remaining four digits) × 4 (choices for each of the remaining four digits) × 4 (choices for each of the remaining four digits)

This simplifies to:

3 × 4^4 = 3 × 256 = 768

Therefore, there are 768 five-digit numbers that can be formed using the digits {0, 1, 2, 3}.

Question

Suppose we want to form five-digit numbers using the set of digits {0, 1, 2, 3}. For example, 30133 and 22301 are such numbers, but 03731 is not. How many such numbers are possible? There are no five-digit numbers formed by using the digits {0, 1, 2, 3}.

Final answer:

The average speed of the train Megan is traveling on is 40 miles per hour. It's obtained by dividing the total distance of 80 miles by the total time of 2 hours.

Explanation:

To find the average speed of the train that Megan is riding, which covers 80 miles in 2 hours, we will use the formula for average speed, which is total distance divided by total time. The train travels 40 miles one way and 40 miles back, totaling 80 miles.

Here is the step-by-step calculation:

Calculate the total distance the train travels: 40 miles one way + 40 miles back = 80 miles.

Calculate the total time of the journey: 2 hours.

Divide the total distance by the total time to find the average speed: 80 miles / 2 hours = 40 miles per hour.

This means the average speed of the train is 40 miles per hour.

Based on the concept of the axis of symmetry, the equation of the axis of symmetry of the parabola is x = 2.

To find the equation of the axis of symmetry of a parabola given its x-intercepts, we can use the fact that the axis of symmetry is the vertical line that passes through the midpoint of the x-intercepts.

The midpoint formula is given by:

x-coordinate of midpoint = (x-intercept1 + x-intercept2) / 2

In this case, the x-intercepts are -3 and 7. Let's calculate the midpoint:

Midpoint = (-3 + 7) / 2

Midpoint = 4 / 2

Midpoint = 2

Therefore, the x-coordinate of the midpoint (and the equation of the axis of symmetry) is x = 2.

Hence, in this case, it is concluded that the equation of the axis of symmetry of the parabola is x = 2.

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