A ball is dropped from the top of the Washington Monument which is 555 feet high.
a) How long will it take for the ball to hit the ground?
b) Find the ball's speed at impact.

this is calculus terms, not physics.​

Answers

Answer 1

Answer:

Time taken t = 5.88 sec (Approx)

Final velocity v = 188.46 ft/s (Approx)

Step-by-step explanation:

Given:

Height h = 555 ft

Initial velocity u = 0 ft/s

Gravitational acceleration g = 32 ft/s²

Computation:

h = ut + 1/2(gt²)

555 = 1/2(30)(t²)

Time taken t = 5.88 sec (Approx)

Final velocity v = u + at

Final velocity v = (32)(5.88)

Final velocity v = 188.46 ft/s (Approx)


Related Questions

please help i’ll mark brainlest

Answers

It’s true .

Count the boxes
Answer: True
Explanation: 6x2=12
10x2=20
So in conclusion, they are equivalent fractions.

Antonio writes the equation 80.4÷d+0.0804


What value of d makes the equation true?

a. 10^2

b. 10^3

c. 10^4

d. 10^5

Answers

Answer

I think you meant to wtite

80.4/d = 0.0804

the answer is d = 1000 or 10^3

Step-by-step explanation:

Can anyone do it I did it, but I'm just checking:)

Answers

Answer: Um, maybe I agree with Mia actually?

Step-by-step explanation:

Selma cannot remember her locker number! She knows that her locker number is prime, and that it is a factor of 435. What are all of Selma's possible locker numbers?

Answers

Answer:

Possible locker numbers for Selma are: 3, 5 and 29

Step-by-step explanation:

First of all, let us have a look at the definition of a prime number.

A prime number is a number which is divisible either by 1 or the number itself.

No other number divides the prime number other than 1 and the number itself.

Now, let us factorize the given number 435 and let us observe the what all possibilities are there.

[tex]435 = 3\times 145[/tex]

Factorizing 145 further:

[tex]435 = 3\times 5\times 29[/tex]

No further factors are possible.

Therefore 3, 5 and 29 are the prime factors of 435.

So, the answer is:

Possible locker numbers for Selma are: 3, 5 and 29

find mFE arc measure

Answers

Question 5

FD = 63 • 2 or 126°. The reason for this is the fact that 63° is an inscribed angle.

DE is a straight line. A straight line measures 180°.

The measure of a circle is 360°.

FE = 360° - 180° - 126°

FE = 54°.

Remember: FE is a minor arc.

Understand?

Done!

Please sol
ve this real quick

Answers

Answer:

for question two: 12

for question four: 1/3

for question six: 25.75 (rounded to two decimal places)

20+3m=5m What does m equal?

Answers

Answer:

M= 10

Step-by-step explanation:

I edited it so now it should be right

Answer:

m = 10

Step-by-step explanation:

20 + 3m = 5m

Subtract 20 from both sides

3m = 5m - 20

Subtract 5m on both sides

-2m = -20

Divide both side by -2

-2m/-2 = -20/-2

= m = 10

Write the equation of a line that is parallel to y = 2+2 and goes
through the point (8, 1).

Answers

Answer:

y = 2x + 1

Step-by-step explanation:

With parallel lines, the slope is always the same, only the y-intercept changes.

y = mx + b

m = slope

b = y-intercept

A police car is approaching a right-angled intersection from the north at 35 mph, and a speeding car is heading east at 30 mph. When the police car is 0.75 miles north of the intersection and the speeding car is 1 mile to the east, what is the rate that the distance between the police car and car is changing?

Answers

Answer:

The rate that the distance between the police car and car is changing = 3 m/s

Step-by-step explanation:

The given speed of the police car = 35 mph

The speed of the speeding car = 30 mph

The position of the police car = 0.75 miles north

The position of the speeding car = 1 miles east

The distance of the police car from the speeding car, d = √(0.75² + 1²) = 1.25

d² = x² + y²

2d·dd/dt = 2x·dx/dt + 2·y·dy/dt

Where;

dx/dt = 30 mph

dy/dt = -35 mph

x = 1

y = 0.75

Substituting gives;

2×1.25 ×dd/dt = 2×1×30 - 2×0.75×35

2×1.25 ×dd/dt = 7.5

dd/dt = 7.5/2.5 = 3

dd/dt = 3 m/s

The rate that the distance between the police car and car is changing = dd/dt = 3 m/s

Answer:

The answer is increasing by 3 mph

Step-by-step explanation:

Which equation represents a line parallel to the y-axis?
A. y = x
B. x = 4
C. y = 4
D. y = x +4

Answers

The equation of the line that is parallel to the y-axis is option B. x = 4

What are parallel lines:

Parallel lines are two or more lines that are always the same distance apart and never intersect, even if they are extended infinitely in both directions.

In other words, they have the same slope but different y-intercepts, which means that their steepness or inclination is the same.

Note:

The equation of the line that is parallel to the x-axis is y = a. The equation of the line that is parallel to the y-axis is x =a

By the above observations

The equation of the line that is parallel to the y-axis is x = a

From the given options,

The equation of the line that is in the form of x = a is x = 4

   

Therefore,

The equation of the line that is parallel to the y-axis is option B. x = 4

Learn more about Parallel lines at

https://brainly.com/question/13669551

#SPJ1

Suppose Ruth Ann has 4 routes she can choose from to get from school to the library and 6 routes from the library to her home. How many routes are there from Ruth Ann's school to her home with a stop at the library?

Answers

Answer:

ok i will help

Step-by-step explanation:

so she has 4 choices the first time. And each of those four branches off to 5 possibilities. so the answer is 4*5=20

Answer:

10 routes to her home with a stop at the library

Directions - Answer all the parts regarding the following scenario:
An Internet service provider charges $18 per month plus an initial set-up fee of $45.
A) Create a linear equation to model the situation. Equation:

B) Find the cost of the plan after the following intervals:

After 1 month =
dollars.
After 6 months =
dollars.
fter 1 year
dollars.

Answers

Answer:1.--63 dollars

6 months-108

1 year=216

Step-by-step explanation:18 times 6 is 108 and 108 times 2 is 216

You are redecorating your room and you only have one wall left to paint. The length of the wall is 13.25 feet and the width of the wall is 9 ft. If the hardware store needs to know the area of the wall to determine how much paint you still need, what is the area that you will report to them?​

Answers

Step-by-step explanation:

thx for da points v buzzed from dhrbd good

Can someone help me please

Answers

Answer:

-31 F = -35 C

-45 C = -49 F

-40 C = -40 F

City Y is coldest

Fahrenheit to Celsius conversion (°F to °C)

i agree with the guy that answered first , i’m just answering so you can mark them brainliest

Math 7 until 2 test.

Answers

What is the question???

?????????????????????

Follow riderty on twitch

Answers

okay???i guess sooooo??

A line is drawn through (–7, 11) and (8, –9). The equation y – 11 = y minus 11 equals StartFraction negative 4 Over 3 EndFraction left-parenthesis x plus 7 right-parenthesis.(x + 7) is written to represent the line. Which equations also represent the line? Check all that apply.

Answers

Answer:

A and D

Step-by-step explanation:

I took the assignment

Answer:

a, d

Step-by-step explanation:

119+a=99.7 what is the answer

Answers

Answer: 19.3

Step-by-step explanation:

Hi. I need help with these questions.
See image for question.

Answers

Answer:

a = 3, b = 2

Step-by-step explanation:

GivenP(x) = ax² + bx + 1P(1) = 6 and P(-1) = 2To find Values of a and bSolution

Substitute the values of x:

P(1) = 6

6 = a(1)² + b(1) + 16 = a + b + 1a + b = 5

P(-1) = 2

2 = a(-1)² + b(-1) + 12 = a - b + 1a - b = 1a = b + 1

Substitute a in the previous equation:

a + b = 5b + 1 + b = 52b = 4b = 2

Then finding a:

a = b + 1a = 2 + 1 a = 3

So a = 3, b = 2

What is the solution to the equation 3x + 2(x − 9) = 8x + x − 14? (1 point)
a. −8
b. −1
c. 1
d. 8

Answers

Answer:

B. -1

Step-by-step explanation:

STEP 1: Simplify 3x+2(x−9).

[tex]5x-18=8x+x-14[/tex]

STEP 2: Add 8x and x.

[tex]5x-18=9x=-14[/tex]

STEP 3: Move all terms containing x to the left side of the equation.

[tex]-4x-18=-14[/tex]

STEP 3: Move all terms not containing x to the right side of the equation.

[tex]-4x=4[/tex]

STEP 4: Divide each term by −4 and simplify.

[tex]x=-1[/tex]

what’s the equation show work

Answers

Answer:

hi

Step-by-step explanation:

10pts and I’ll mark brainliest!
(Also EXPLAIN the reasoning you used to write the expression)

Answers

Answer:

6x+5

Step-by-step explanation:

2x-5+x-5=3x-10+2x+15=5x+5+x=6x+5

Answer:

8x + 10 is the expression for our perimeter

Step-by-step explanation:

2x -5 - x - 5 = x - 10. So the length of the right side is x - 10.

2x + 15 - x = x + 15, so the length of the other missing side is x + 15.

Now we combine like terms and simplify to get the perimeter

(2x -5) + (x) + (x-5) + (x+15) + (x-10) + (2x + 15)

Simplified we get 8x + 10 as the expression for our perimeter

What is 47360 dividet by 2435

Answers

Answer:about 19.4496

Step-by-step explanation:

I used a calculator

what is -12x-5(-8)=40​

Answers

Answer: 0

Step-by-step explanation:

Answer:

x = 0

Step-by-step explanation:

18 / x equals negative 2​

Answers

Answer:

x = -1/9

Step-by-step explanation:

[tex]\frac{18}{x} = -2[/tex] multiply by 1/18 to cancel out

[tex]x = -2(\frac{1}{18} )\\x = -\frac{2}{18} \\x = -\frac{1}{9}[/tex]

Hey there!

18/x = -2

Multiply both sides by x

-2x = 18

Divide both of your sides by -2

-2x/-2 = 18/-2

Cancel out: -2x/-2 because it gives you 1

Keep: 18/-2 because it helps us solve for our answer

x = 18/-2

18/-2 = 18 divided by -2 ➡️ -9

Thus your answer is: x = -9 ✅

Good luck on your assignment and enjoy your day!

~LoveYourselfFirst:)

I don’t get this, can you guys help out?

Answers

Answer:

9 ÷ 3/2 = 6

21 ÷ 7/3 = 9

12/7 ÷ 2/7 = 6

4 2/3 ÷ 7/9 = 6

72/7 ÷ 8/7 = 9

4 1/2 ÷ 1/2 = 9

Answer:

6 9

1st 2nd

3rd 5th

4th 6th

Antonio ran 1/4 of The way from his house to school. She ran 1/10 mile. How far is it between his home and school

Answers

Answer:

2/5 mile

Step-by-step explanation:

Let's give the total distance the variable x.

1/4x = 1/10

x = 4/10

x = 2/5

4/6 = 9/12 is a proportion.

true false

Answers

Answer:

The answer is False 9/12 simplified equals 3/4

Step-by-step explanation:

Answer:

False

Step-by-step explanation:

Plz help me with math again am so bad at it

Answers

Answer:

B and E

Step-by-step explanation:

9 power 3 is volume

9 x 9 x 9 is volume

HOPE THIS HELPS

PLZZ MARK BRAINLEIST

Kim has 3 shirts and 2 skirts.
How many different shirt-skirt outfits can she make?
A. 2
B. 3
C. 5
D. 6
E. 8

Answers

3 * 2 = 6
The answer would be D

Answer:

The answer is D. 6

Step-by-step explanation:

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