A 10.0kg rock is dropped and hits the ground below at a speed of 60 m/s . Calculate the gravitational potential energy of the rock before it was dropped

Answers

Answer 1

Answer:

Solution:

Mass of body, m= 10kg

velocity, v= 60m/s

Now,kinetic energy on earth= potential energy at a that point [energy conservation]

so, kinetic energy= 1/2*m* v^2

= 1/2* 60(60)^2

= 30* 60*60

= 108000 joules


Related Questions

If X = 9 units, Y = 7 units, Z = 18 units, and h = 8 units, what is the surface area of the triangular prism shown above?

Answers

Answer: 506 square units (answer choice B)

Step-by-step explanation:

The formula for the surface area of a triangular prism is:

SA = bh + 2ls + lb,

where b is the base, h is the height, l is the length, and s is the side of the triangle.

In this case, the base is 7 (Y), the height is 8 (h), the length is 18 (Z), and the side of the triangle is 9 (X).

So, by subsituition, we have:

SA = (7)(8) + 2(18)(9) + (18)(7)

SA = 56 + 324 + 126

SA = 506

The surface area is 506 square units.

Hope this helps! :)

represent 11 by 9 on a number line​

Answers

Answer:

Fraction mulitiplication adding its c

Step-by-step explanation:

HELP!! What do I do ?

Answers

Omg rlly I can’t help you

1. The total area of all the faces of a three-dimensional figure is called the?

Pls Answer Fast PLS PLS PLS​

Answers

Surface area? Maybe I’m not sure tho

The Value of X________

Answers

Answer:

x = 59.5

Step-by-step explanation:

the angles  of a quadralateral equal 360 degrees, one angles is 90 degrees, the other i 151, 90 + 151 = 241, 360 - 241 = 119, 119/2 = 59.5, x = 59.5

Help!!!
Ellie and three of her friends each bought two hamburgers and a drink at the soccer game. If the drink cost $1.25 and the total cost for all four girls was $18.20, what was the cost of a hamburger?

Answers

$1.65 for a burger

explanation: you have to multiply 1.25 with 4 for the drink which is 5 dollars they spent. subtract the total amount( 18.20) with the 5 dollars giving you 13.2. divide 13.2 with how many burgers they got. it says they each bought two so 4 times 2. so they got 8 burgers together. ( 13.2\ 8 = 1.65)

giving brainliest *easy*

Answers

Answer:

1130.4

Step-by-step explanation:

2x100pi + 160pi

I need help please ?!!!!

Answers

The answer to the question is (a) -44

A local city collects 8% sales tax. If the
total purchase was $216.00, then how
much was collected for sales tax?

Answers

Answer:

156.00

Step-by-step explanation:take away 8% sales tax away from it

Problem 3.1
Jaleel wrote a book. He wants to print some copies for his
friends and family. The printing company charges a one-
time fee of $200, plus $2 for each printed book.
Is Jaleel's total cost a function of the number of books he
prints?

Answers

Answer:

C(n) = 200 + 2n

Step-by-step explanation:

Given:

Fixed cost state by printing company = $200

Variable charges per book print = $2

Find:

Cost function of number of books print

Computation:

Assume:

Number of books printed = n

Total cost of n books printed = Fixed cost state by printing company + Variable charges per book print[Number of books printed]

C(n) = 200 + 2n

Where n = number of book

C = Total cost

Jaleel's total cost as a function of the number of books he print is [tex]c = 2n + 200[/tex]  (in dollars)

How to form mathematical equations from the given description?

You can represent the unknown amounts by the use of variables. Follow whatever the description is and convert it one by one mathematically. For example if it is asked to increase some item by 4 , then you can add 4 in that item to increase it by 4.

If something is for example, doubled, then you can multiply that thing by 2 and so on methods can be used to convert description to mathematical expressions or equations.

For the considered case, we don't know exactly how many books will Jaleel gets printed. So we can use variable here.

Let we have:

n = number of books Jaleel gets printed.c = total cost Jaleel has to pay for printing those books

Then, as stated in the problem, for each book there is $2 price, and there is a fixed one-time charge of $200

Thus, we get total cost as:

c = Cost for n books + Fixed one-time cost.

Cost for n books = 2 + 2 + ... + 2 (n times ) (in dollars) = [tex]2n[/tex]

(we don't write symbols like of currency generally, and understand it from context. Also, sign of multiplication is often hidden if there are non numeric symbols and numbers being multiplied are written together)

Fixed one-time cost = $200

Thus, total cost is written as:

c = Cost for n books + Fixed one-time cost.

c = 2n + 200 (in dollars)

Learn more about forming equations here:
https://brainly.com/question/11938672

Pythagorean theorem 3d

The Flat Family’s roof is 60 feet long and 32 feet wide. The TV antenna is 30 feet tall. The wires are attached 5 feet below the top of the antenna.

Mr. Flat needs to buy wire at his local hardware store. He decides to buy an additional 10% more than the amount we calculate…so he has enough to attach each wire on each end. How much total wire should he buy? Show all of your work so that Mr. Flat can understand it, and round your answer reasonably.

Answers

Answer:

ihhrhi2rhhb4rhbur4hbur4hb43hubr4u3br

Step-by-step explanation:

Which situation results in a final value of zero

Answers

Answer:

                       

Step-by-step explanation:

Use graphs and tables to find the limit and identify any vertical asymptotes of the function.

limit of 1 divided by the quantity x minus 10 squared as x approaches 10

PLEASE ASNWER ASAP WITH WORK IN A TABLE PLEASE

Answers

Answer:

Step-by-step explanation:  Given is a function as 1 divided by the quantity x minus 10 squared

Mathematically translating we get

the function

Since the function become undefined at x=10 we get

vertical asymptote is

x=10

Limit x tends to 10 of f(x) will exist since both limits are equal

This is because let x tends to 0 from left.

Then we have

f(x) =  

Right limit also will be +infinity

This is because the curve is symmetrical about x=10 and hence limit would be +infinity.

find the erea of the trapezoid.

Answers

Answer:

36

Step-by-step explanation:

A (base) 6

B (Base) 12

H (height) 4

A cook makes vegetable barley soup by mixing 2 pounds of barley into 7 quarts of vegetable broth. Assume that the cook continues to use the same rate to make more batches of soup. How many pounds of barley should the cook mix with 35 quarts of broth?

Answers

Answer: The answer to this question is 10 :D

Step-by-step explanation:

The answer is 10 pounds.

2 pounds            7 quarts

4                                14

6                                 21

8                                 28

10                                35

32 is 4 more than twice a number. What is the number?

Answers

I believe the correct answer is 14

Carissa recently retired, and has $540,000 in savings. She wants to invest as much as possible in a safe CD account paying 1.2% interest, and as little as possible in a riskier bond paying 4.7% interest. She needs to earn $14,880 a year in interest to cover expenses above SSI. How much should she invest in each account?

Answers

Answer:

Don't awnser the bots

Step-by-step explanation:

They will try ro scam you

Which only lists multiples of 16? *
Mark only one oval.
1, 2, 4, 8, 16
16, 24, 32, 40
16, 32, 48, 64

Answers

1,2,4,8,16 is your answer
1,2,4,8,16 is the correct answer
good luck

Solve for x

X/16=45/40=

Answers

Answer:

18 will be your answer

Step-by-step explanation:

Answer:

The answer is 18.

Step-by-step explanation:

[tex] \frac{x}{16} = \frac{9}{8} [/tex]

[tex]x = \frac{9}{8} \times 16[/tex]

[tex]x = \frac{9 \times 16}{8} [/tex]

[tex]x = \frac{144}{8} [/tex]

[tex]x = 8[/tex]

Therefor, the answer is x = 8.

Help be genuine will mark brainliest

Answers

Answer: 15.45133224

Step-by-step explanation:

Find the area of the half circle.

r=6

pi (6)^2/2

Divide by two because it is a half circle not a circle.

pi (6)^2/2=18 Pi

We know there are two square with even side lengths so we know the sides of the two squares are 6 it is the same as the radius of the circle.

We multiply B*H= Area of the square

6*6=36 is the length of half of the rectangle aka the square

So we multiply that by 2 because there are 2 squares so we get 72

72-18 Pi= 15.45133224

Answer:

15.48 is the answer

Step-by-step explanation:

6×6×3.14=113.04

113.04÷2= 56.52

6×12= 72

72-56.52= 15.48

Plzzz help asappppppoppp

Answers

Answer:

C

Step-by-step explanation:

Use the diagram to complete the statement!
Due in 10 min! Please help!
Will give brainliest!

Answers

Answer:

m>NQR=30°

m<LNS=61°

RQ=7

Step-by-step explanation:

m>NQR=180-89-61=30°

m<LNS=61°

RQ= 8/4=x/3.5 = 7

Which function is decreasing on the same interval as the function graphed here?

Answers

The function that is decreasing on the sale interval as the function graphed in the attached image is " F(x) = -x² + 4x -4.

What does it mean for a function to be decreasing?

When the y-value of a function is decreasing as the x-value goes up, that function is said to be a decreasing function.

That is  when x1 < x2 then f(x1) ≥ f(x2)

What is the Proof of the above?

Let F(x) = 4

Thus

f(4) = -(4)² + 4(4) -4

=  16 + 16 - 4

= 28

Now, let F(x) = 2

Thus

f(2) = -(2)² + 4(2) -4

= 4 + 8 - 4

= 8

Note that X1 = 4 and X2 = 2

Thus  x1 < x2 then f(x1) ≥ f(x2).

Hence Option C is the decreasing function.

Learn more about decreasing functions at;
https://brainly.com/question/13157110
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True or false a polygon that has four sides and four angles is a pentagon

Answers

Answer:

I think that is false

Step-by-step explanation:

A pentagon has 5 sides

The statement "a polygon that has four sides and four angles is a pentagon" is false.

What is a quadrilateral?

A quadrilateral is a polygon with 4 number of sides and 4 vertices. A few examples of a quadrilateral are square, rectangle, rhombus, parallelogram, etc.

A polygon with four sides is known as a quadrilateral, therefore, the statement "a polygon that has four sides and four angles is a pentagon" is false.

Learn more about Quadrilateral:

https://brainly.com/question/13805601

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HELP!?? Please hurry due today!!!!

Answers

Answer:

348m^2

Step-by-step explanation:

different solution of salt are made up what valumo of​

Answers

Answer:

Salt is sodium.

Answer:

Salt is Sodium.

Step-by-step explanation:

When you break down the compounds of salt you find molecules of sodium thus saying that salt is made up of sodium molecules.

How many small cubes are needed to make the large figure shown below?
Key
represents
1 small
cube
9
15
18
21

Answers

Answer:

Step-by-step explanation:

helpp i beg u its due in one hour!!! plz ​

Answers

Answer:

113.1 cm²

Step-by-step explanation:

we are given the diameter of the circle (length is 12 cm), and the formula for the area of the circle, which is πr², where r is the radius

so first, we need to find the radius

the length of the radius is half the length of the diameter

so that means that r=d/2

r=d/2

r=12/2

r=6

therefore the length of the radius is 6

now square 6, which is the same as multiplying it by itself

6²=36

now, multiply the radius squared by π, which is often substituted for as 3.14 or 22/7  

so if we were to do 22/7 for instance,

36*22/7≈113.14

round that to 113.1

there's your answer :)

Hope this helps!

If someone is good at math, can someone help me solve this question? (tip if the photo is upside down, flip it.)

Answers

Answer: $880.45

Step-by-step explanation:

find the cost of tickets

18*11.50= $207

now add the other costs

207+625+25+23.45= $880.45

Help me please!!!!!!!

Answers

Answer:

48%

Step-by-step explanation:

25 total students, 12 got either 0-4 or 5-9, 12/25 as a percent is 48 percent. Hope this helped! Good luck!

The answer to the problem is 48
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