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zmey [24]
3 years ago
10

A kid has 650 Joules of potential energy when they are the top of their swing. If the height is 1.3 meters, what is the mass of

the kid?
Mathematics
1 answer:
Greeley [361]3 years ago
6 0

Answer:

51kg

Step-by-step explanation:

GPE=mass×gravitational field strength×height

so...

mass=GPE/gravitational field strength×height

gravition field strength on earth=9.81

650/9.81×1.3=50.968...

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lys-0071 [83]

\frac{1}{2(y-3)}>\frac{1}{3(4-y)}=>3(4-y)>2(y-3)

12 - 3y > 2y - 6

12 + 6 > 2y + 3y

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y

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3 0
3 years ago
Assuming that $3u + 12v\neq0$, simplify $\dfrac{12u^3 + 48u^2v}{3u+12v}$.
Kay [80]

Answer:

  4u²

Step-by-step explanation:

  \dfrac{12u^3 + 48u^2v}{3u+12v}=\dfrac{12u^2(u+4v)}{3(u+4v)}=\boxed{4u^2}

Common factors cancel from numerator and denominator. The one factor that might make the expression undefined is given as non-zero, so no additional restrictions apply.

5 0
2 years ago
What is the midpoint of the line segment with endpoints (-1,7) and (3, -3)?
Elodia [21]
The correct answer is A. (1, 2)
4 0
2 years ago
A​ penny a​ nickel a​ dime and a quarter are tossed. what is the probability of obtaining four tailsfour tails on the​ tosses?
Korvikt [17]
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8 0
3 years ago
Find the measures of all four angles if 3·(m∠1+m∠3) = m∠2+m∠4.
mixas84 [53]

Answer:

Step-by-step explanation:

m∠1=m∠3

m∠2=m∠4

3*(m∠1+m∠3)=m∠2+m∠4

3*(m∠1+m∠1)=m∠2+m∠2

3×2 m∠1=2 m∠2

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now m∠1+m∠2=180°

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4 m∠1=180

m∠1=180/4=45°

m∠3=45°

m∠2=180-m∠1=180-45=135°

m∠4=135°

5 0
3 years ago
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