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soldi70 [24.7K]
3 years ago
8

What is the potential energy of a 500-N pole-vaulter when she is 4 m above the ground?

Mathematics
1 answer:
Novosadov [1.4K]3 years ago
7 0

Answer:

2000J

Step-by-step explanation:

mg=500

h(height)=4

500 x 4 = 2000J

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How do i solve this step by step
AlladinOne [14]

Answer:

4) x^10

Step-by-step explanation:

1) If two numbers have the same base (i.e. x^3 and x^4) and you are multiplying them you just add the exponents. Therefore x^3*x^4 would be x^(3+4) which equals x^7.

2) When dividing similar bases you have to subtract the exponents. If we have x^18÷x^8 that is equivalent to x^(18-8) which gives us x^10.

3) If we have (x^3)^3 we will need to multiply the exponents. Therefore (x^3)^3 is equivalent to x^(3*3) which gives us x^9.

4) (x^2*x^4)^4÷x^8

First do what's in the parentheses,

(x^2*x^4) = x^6

Next do the exponents,

(x^6)^3 = x^18

Lastly the division,

x^18÷x^8 = x^10

x^10 is our answer.

4 0
4 years ago
Solve - pv + 40 &lt; 65 for v<br> solve 7w - 3r = 15 for r
Katarina [22]

Answer:

v > -25/p

r = -5 +7/3 w

Step-by-step explanation:

- pv + 40 < 65

Subtract 40 from each side

- pv + 40-40 < 65-40

-pv < 25

Divide each side by -p  (remember to flip the inequality since we are dividing by a negative)

-pv/-p > 25/-p

v > -25/p


7w - 3r = 15

Subtract 7w from each side

7w-7w - 3r = 15-7w

-3r = 15-7w

Divide by -3

-3r/-3 = (15-7w)/-3

r = -5 +7/3 w

8 0
3 years ago
Which value is NOT equivalent to the other values?
Gre4nikov [31]

it's 0.4 while it may look like 4% it's actually 40% of 1

8 0
2 years ago
Read 2 more answers
About your photograph 4 in wide and 6in long the photograph is enlarged and their larger is proportional to the original photogr
Bad White [126]
18 inches.

12/4=3 so you would multiply 6•3 to get 18
4 0
3 years ago
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Jim ordered a sports drink and three slices of pizza for $8.50. His friend ordered two sports drinks and two slices of pizza for
kramer

Answer:

total is 16.50

Step-by-step explanation:

add 8.50+8.00

7 0
3 years ago
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