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3 years ago

A flying object is moving at 150 m/s. It makes a complete and final stop in 12 seconds. Calculate the object’s acceleration.

Mathematics

1 answer:

kondaur [170]3 years ago

4 0

Answer:

-12.5 m/s²

Step-by-step explanation:

v (final velocity) = 0

u (intial velocity) = 150 m/s

t = 12s

a= v-u/t

a = 0 - 150 / 12

a = -12.5 m/s²

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A conference will take place in a large hotel meeting room. The organizers of the conference have created a drawing for how to a

Tcecarenko [31]

Answer:

The actual length of the room is 40 feet

Step-by-step explanation:

Given

$Scale = \frac{1}{2}\ inch : 12\ feet$

Required

Determine the actual measurement of $3\frac{1}{3}\ inches$

Represent the required actual measurement with x

i.e.

$3\frac{1}{3}\ inches : x$

And we have:

$\frac{1}{2}\ inch : 12\ feet$

$3\frac{1}{3}\ inches : x$

Cross Multiply

$x * \frac{1}{2} = 12 * 3\frac{1}{3}$

Convert fraction to improper fraction

$x * \frac{1}{2} = 12 *\frac{10}{3}$

$\frac{x}{2} = \frac{120}{3}$

$\frac{x}{2} = 40$

Multiply both sides by 2

$x = 40 * 2$

$x = 80\ feet$

<em>The actual length of the room is 40 feet</em>

8 0

3 years ago

A group is planning a trip to the local amusement park and needs to make sure everyone has a ticket. Up to 8 people can attend t

egoroff_w [7]

Answer:

8x17.50

Step-by-step explanation:

6 0

1 year ago

PLEASE HELP NEED THIS DONE.

Mandarinka [93]

A.40,48 is the right answer

7 0

3 years ago

Read 2 more answers

Use the points A (4,4) and B(4,-5). Complete the description of segment AB and find its length.

Scrat [10]

Use the points A(4, 4) and B(4, −5)

(1) (a) From two points , we will get a vertical line when 'x' values are same and horizontal line segment when 'y' values are same

Here in A(4, 4) and B(4, −5) , the x values are same so the segment AB is a Vertical . The length is the difference between y values ( 4 -(-5)) = 9

Segment AB is a Vertical segment that is 9 units long.

(2) Describe the image of segment AB under the transformation

(x, y) ----> (x, 2y)

A(4, 4) -----> (4, 8)

and B(4, −5) ---> (4, -10)

'x' values are same so line AB is Vertical. The length is the difference between y values ( 8 -(-10)) = 18

The image of segment AB is a Vertical segment that is 18 units long.

(3) Describe the image of segment AB under the transformation

(x, y) ----> (x + 2, y)

A(4, 4) -----> (6, 4)

and B(4, −5) ---> (6, -5)

'x' values are same so line AB is Vertical. The length is the difference between y values ( 4 -(-5)) = 9

The image of AB is a Vertical segment

2 units to the right of the original segment that is

9 units long.

5 0

3 years ago

Read 2 more answers

A and b are natural numbers. The diameter of cell a is 2.3 , and the diameter of cell b is 2.3 .

Pani-rosa [81]

After clarification we see the respective diameters are

$A = 2.3 \times 10^{-a}$

$B = 2.3 \times 10^{-b}$

We're asked about the ratio

$A:B = 2.3 \times 10^{-a} : 2.3 \times 10^{-b} = 10^{-a} : 10^{-b} = 10^b : 10^a = 10^{b-a} : 1$

Now we can go through the choices.

A. If a = 4 and b = 6, then cell a is 100 times greater than cell b.

$A:B=10^{6-4}:1 = 100:1$

It would be more proper to say the diameter of cell A is 100 times the diameter of cell B, but yes, this is TRUE.

B. If a = 4 and b = 6, then cell b is 100 times greater than cell a.

FALSE. 10 to the minus 4 is 100 times bigger than 10 to the minus 6, so a is bigger.

C. If a = 4 and b = 6, then cell a is 2 times greater than cell b.

FALSE. We already calculated its 100 times bigger.

D. If a = 4 and b = 6, then cell b is 2 times greater than cell a.

FALSE.

8 0

4 years ago

Read 2 more answers