How long will it take a rocket traveling at 8 km/s to reach 20 km? (please include the equation)

Answers

Answer 1

Answer:

Step-by-step explanation:

Use the second kinematic formula

[tex]x_f-x_i=V_it+\frac{1}{2}at^2\\20=8t+\frac{1}{2}(9.8)t^2\\4.9t^2+8t-20=0[/tex]

Apply the quadratic formula to solve for time. The negative value does not matter because time cannot be negative, its impossible.

I got a value of t = 1.363 seconds


Related Questions

What is the product of (3to the square root of 8)(4 to the square root of 3)? Simplify your answer

Answers

Answer:

A. [tex] 24\sqrt{6} [/tex]

Step-by-step explanation:

Given:

[tex] (3\sqrt{8})(4\sqrt{3}) [/tex]

Multiply both together as shown below:

[tex] (3*4*\sqrt{8}*\sqrt{3}) [/tex]

[tex] 12\sqrt{24} [/tex]

[tex] 12\sqrt{4*6} [/tex]

[tex] 12*\sqrt{4} * \sqrt{6} [/tex]

[tex] 12*2 * \sqrt{6} [/tex]

[tex] 24* \sqrt{6} [/tex]

[tex] 24\sqrt{6} [/tex]

if there are 2 beats in each measure and the quarter notes get the beat ( equals 1), what time signature would you be in ​

Answers

Answer:

2/4

Step-by-step explanation:

because if there are two in each measure that automatically makes it two beats out of 4.

Which expression represents the sentence "five times a number, n"?

Answers

Answer:

5n

Step-by-step explanation:

:)

Answer:5n

Step-by-step explanation:

which statement is true
1.
2.
3.
4.

Answers

its b. i did it already

what is the answer of this 5-x=7-2x

Answers

Answer:

x = 2

Step-by-step explanation:

5 - x  = 7 - 2x

-x + 2x = 7 - 5

x = 2

Answer:

x=2

Step-by-step explanation:

5-x=7-2x

5+x=7 (Move 2x to the other side)

x=2 (Minus 5 from both sides)

Check:

5-x=7-2x

5-2=3

7-(2*2)= 7-4 = 3

(Correct)

Arrange the expressions in increasing order of their estimated

Answers

Have a blessed day xxxo‍♀️‍‍

Is 2/5 and 8/20 equivalent

Answers

yes!
explanation:
8 divided by 4 equals 2 and 20 divided by 4 is 5

Answer:

Yes, they are.

Step-by-step explanation:

PLEASE HELP, MARKING BRAINLIEST!!

Find the measure of angle x in the figure.

Thanks.

Answers

Answer:

angle X is equal to 130 degree

Step-by-step explanation:

angle sum prop in septagin is 900 degree

so 900-770 is 130

PLEASE HELP ME IF YOU GET IT RIGHT THEN I WILL GIVE YOU BRAINLIEST JUST HELP ME I BEG OF YOU

Answers

Answer: Jody can buy at most 63 sheets of paper

Step-by-step explanation:

you would start by subtracting $18.25 from the total $40, which leaves you with $21.75

you then do 21.75 ÷ (divided by) 0.34

that gives you 63.971, and you can only buy whole sheets of paper, you round to 63 and thats your answer

The ice cream vendor ‘s cold box holds 24 ice cream cups. The freezer has 8 cases of ice cream each with 48 cups. How many trips to the freezer will the vendor make if he sells all the ice cream? I have more for my brother.

Answers

Answer:

16

Step-by-step explanation:

24/8=3

48/3=16

Which of the following is an x intercept of the function, f (x)=x^3 -5^2-8x+48

Answers

Answer: positive 4

Step-by-step explanation:

Will spent $15 for 12 pounds of granola. What is his unit rate in dollars per pound?

Answers

Answer:

1.25

Step-by-step explanation:

to find the unit rate you have to find out how much one pound will be so you divide 15 by 12 and you get 1.25

how could you write 4/8 as a percent without dividing? I am really stuck I need help!!! thank you

Answers

50%. Aaaaaaaaaaaqaaafs

Answer:

it's 50% because the 4 is just half of 8 (plus if you did divide you get 0.5 and 0.5 as a percent is 50%)

Hope this helped!

Step-by-step explanation:

give the missing term 4:5=n:45​

Answers

Answer : 36
Divide 45 by 5 , then multiply the product by 4
Hopefully this helped you :) .

Answer:

n = 36

Step-by-step explanation:

4 : 5 = n : 45

It can be also written as :-

[tex]\frac{4}{5} = \frac{n}{45}[/tex]

Multiplying both the sides by 45 ,

[tex]=> \frac{4}{5} \times 45 = \frac{n}{45} \times 45[/tex]

[tex]=> n = 4 \times 9 = 36[/tex]

How do you write 156 in scientific notation?

Answers

Answer:

Why is 156 written as 1.56 x 10^2 in scientific notation?

Step-by-step explanation:

Please help!!! Thank you!!!!!

Answers

3rd option


Hope this help!!!!

Answer:

Its the third answer choice

Step-by-step explanation:

Hope this helps

Which value is an output of the function?
-6
-2
4
7

Answers

Answer:

the awnser should be. -2

Find the slope and y-intercept of the line in each graph.

Answers

1 slope is 2/4 and the y is 0
2. Slope is -2/3 and the y is 2
Hope this helps

Jackson invested $750 into a savings bond that earned 3% interest each month. At the same time, he also began saving money in a savings account. The value of the savings account is represented by f(x) = 1,000 + 25x, where x represents the number of months since the account was opened. At the end of how many months did the value of the savings bond first begin to exceed the value of the savings account?

Answers

Answer:

33 Is the ANSWER

Select all possible solutions
help!

Answers

Please just tell us the questions so we don’t have to look at bad quality

triangle ABC has sides of lengthAB = 10 cm, BC = 12 cm , and AC = 15 cm . List the angles from smallest to largest.

Answers

Answer:Ok 19$ fortnite card. Who wants it!, and yes I am giving it away, and remember, share, share, share, and trolls, don't get blocked!

Step-by-step explanation:

a boat traveled 19 kilometers east and 53 kilometers south, how far from its starting position is it?

A 25-foot ladder rest against a house at a point 24.1 feet above the ground. How far away from the house is the base of the ladder?​

Answers

Answer:

56.3

6.6

Step-by-step explanation:

Answer:

A boat traveled 19 kilometers east and 53 kilometers south, how far from its starting position is it?: √3170≈56.3 km.

A 25-foot ladder rest against a house at a point 24.1 feet above the ground. How far away from the house is the base of the ladder?: √44.19≈6.65 ft.

Step-by-step explanation:

For these questions, we will need to use the pythagorean theorem: a²+b²=c², where a and b are the legs of the right triangle and c is the hypotenuse.

A boat traveled 19 kilometers east and 53 kilometers south, how far from its starting position is it?

In this question, we are looking for the hypotenuse.

19 and 53 are the legs of the triangle, so we can plug it into the equation:

19²+53²=c²

361+2809=c²

3170=c²

√3170=c

56.30275304103699, or approximately 56.3 km.

A 25-foot ladder rest against a house at a point 24.1 feet above the ground. How far away from the house is the base of the ladder?​

25 is the hypotenuse since it is leaning sideways and is the longest side. 24.1 is one of the legs.

In this question, we are looking for one of the legs.

Let's plug it in: 24.1²+b²=25²

580.81+b²=625

Subtract 580.81 from both sides.

b²=44.19

b=√44.19

6.647555941848102, or approx. 6.65 ft.

tell whether the ratios are equivalent: 3 days to 4 hours and 9 days to 12 hours. show your work.

Answers

Answer:

yes.

Step-by-step explanation:

write these ratios as fractions to see if they are proportional

3/4

9/12 -------> this can be simplified by dividing by 3

       = 3/4

therefore yes they are equivalent

Someone plz help me I’m in mine last question

Answers

Step-by-step explanation:

21)

Frog C - Frog B

318.5-199.25=119.25 cm

22)

Frog A = 213.33

to the nearest whole number= 213 cm

What is this answer?

Answers

Answer:

B is the correct answer

I need help ASAP!!!!!!!

Answers

Answer:

yes GFEH ~LKJM and DCBA ~CRQP

Step-by-step explanation:

if you turn the DCBA shape 90 degrees to the right you can easily see that they're the exact same shape

hope this helps!!

What is the area of the circle below?
10 ft

Answers

Answer:

Circle

Solve for area

A=π r^2

r =Radius

You about this first:

The circumference of a circle is its perimeter or distance around it. It is denoted by C in math formulas and has units of distance, such as millimeters (mm), centimeters (cm), meters (m), or inches (in). It is related to the radius, diameter, and pi using the following equations: C = πd. C = 2πr.

Step-by-step explanation:

Hope it is helpful....

help help help boi i literally don’t know the answer

Answers

[-9,3]
the domain is determined by the x values

NO SCAMMING (The goalie on the Ice blades hockey team saves (blocks) 73% of the opponent's shots. With 10 minutes to go, the Ice blades are ahead by one goal, and they will win if the other team does not score.
The other team takes 5 shots in the final 10 minutes. The Ice blades do not score any more goals.)

Question: The table shows pairs of random digits. The pairs in each group simulate the 5 shots taken by the opponent.
The paired digits 00 to 99 represent 100 shots.
Let 00 to 72 = a shot that is saved. Which digits represent a goal scored? Explain.

Answers

Answer:

B

Step-by-step explanation:

please help 25 points !!!!!!!!!!!!!!!!!!!
look at the picture below . write a word problem for that equation.

Answers

Now we have to,

Write a word problem for the equation,

→ 2/6 × 3/4

Let's write a word problem,

Nobita had got salary, then he spent his 2/6 of his salary for every 3/4 times. How much he had spent totally (in fraction), give the required expression?

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