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Butoxors [25]
2 years ago
14

A toy car has a mass of 2 kg and a speed of 6 m/s. How much kinetic energy does it have?

Mathematics
1 answer:
lutik1710 [3]2 years ago
3 0

Answer:

A.40 J

Step-by-step explanation:

K. E. Is 1/2 multiply by mass x velocity square

M is 5kg, v is 4m/s

1/2 x5x4x4 equals 40joules.

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Um técnico em eletricidade recebeu um molho que continha 12 chaves não identificadas pra abrir a porta de um quarto de hotel e e
77julia77 [94]

Answer:

Step-by-step explanation:

Dado que:

Um técnico em eletricidade recebeu um pacote que continha 12 chaves não identificadas, a probabilidade de que ele acertasse na primeira vez será:

= número de ensaios / número total de ensaios disponíveis

O técnico eletricista tem apenas uma tentativa

uma vez que existem 12 chaves não identificadas, o número total de testes disponíveis 12

∴

= 1/12

= 0.0833

= 0.0833 × 100

= 8.33%

7 0
2 years ago
H varies directly as L. If H=20 when L=50, determine H when L=30
vichka [17]

The correct answer is 12

Set up a ratio and then solve. See paper attached. (:

4 0
3 years ago
Which list of ordered pairs represents solutions to x + y = 2 ?
Sloan [31]
(-4, 6), (0, 2), (4, -2) are all ordered pairs that have the sum as 2.
-4+6 is the same thing as 6-4 if there's more positive than negative 
0+2=2 because 0 plus a number equals to that number
4-2=2 because you're adding a negative number with the positive number together to get the answer

Just be aware that I might not make any sense at all

3 0
3 years ago
Convert 6.42 kilograms to grams.<br><br> 0.00642 g<br> 64.2 g<br> 642 g<br> 6,420 g
Katarina [22]
1 kilogram (kg) equals to 1000 grams (g). Since you have 6.42 kilograms, divide 6.42 kilograms to 1000 grams. Your final answer is 6420 grams in total.
4 0
2 years ago
??????<br> What's this one
Soloha48 [4]
The closest distance is C. 12 feet
7 0
3 years ago
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