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Mice21 [21]
3 years ago
10

An 8 kg toddler is running and using 400 J of kinetic energy. What is the velocity of the child

Mathematics
1 answer:
mojhsa [17]3 years ago
7 0

Answer:

10 m/s

Step-by-step explanation:

KE = 0.5mv^2

400 = 0.5(8)(v^2)

100 = v^2

v = 10 m/s

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Answer: c.)2 g/ml is the correct answer.

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3 years ago
A classroom board is 54 inches wide and 36 inches tall. Eva
Lady bird [3.3K]
<h3>Answer:  180 inches</h3>

Work Shown:

L = 54 = length

W = 36 = width

P = 2(L+W) ... perimeter of the rectangle

P = 2(54+36)

P = 2(90)

P = 180

She needs 180 inches of ribbon.

To convert to feet, divide by 12. So 180 inches = 180/12 = 15 feet.

8 0
2 years ago
Mason plays a game by flipping two fair coins. He wins the game if both coins land facing heads up. If Mason plays 200 times, ho
aev [14]

Answer:

Total no.of possible outcomes = 200 × 4 = 800

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P (E) = no.of favourable outcomes / total no.of possible outcomes

= 200/800

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7 0
3 years ago
Read 2 more answers
Given:
nirvana33 [79]
I hope this helps you

5 0
2 years ago
In one baseball season, Nolan hit twice the difference of the number of home runs Mrs. Davis hit and 6. Altogether, they hit 18
Alborosie

Answer:

Nolan hitted 8 home runs

Step-by-step explanation:

Let's call the number of home runs that Nolan hitted by N, and that Davis hitted by D.

So, we can write the following equations:

N = 2 * (D - 6)

N + D = 18

Now we can solve the system of equations, using the value of N from the first equation in the second one:

2 * (D - 6) + D = 18

2*D - 12 + D = 18

3*D = 30

D = 10

Now we find N:

N + D = 18

N + 10 = 18

N = 8

So we have that Nolan hitted 8 home runs.

4 0
3 years ago
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