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devlian [24]
3 years ago
14

Chloe wanted to find out if the color of a food would affect how quickly kindergarten children would eat it for lunch. She belie

ved that brightly colored food would be eaten more quickly because of the urgency of the color. She put food coloring into 4 identical serving bowls filled with mashed potatoes. A 5th identical bowl received only plain natural mashed potatoes. The colors were natural white, red, blue, green, and yellow. Each child was given a scoop of potatoes. Chloe did this experiment using 50 kindergarten students. 10 students were given each of the colors. She recorded the start and finish time of each student eating the potatoes and then calculated the difference in seconds. She did this over 5 days with each student getting each color. Multiple data takers (Chloe’s friends) made this experiment possible. What would be an appropriate hypothesis for this experiment? a Brightly colored mashed potatoes will be eaten quicker than non brightly colored mashed potatoes. b If you feed students mashed potatoes, then they will be happy. c If the color of mashed potatoes is bright, then students will eat them faster than normally colored mashed potatoes. d If the type of mashed potatoes looks normal, then students will eat them
Physics
1 answer:
Harrizon [31]3 years ago
6 0
A

The reason this is is because she the first sentence says that she believed that people would eat the mashed potatoes faster if they were brighter color.
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Answer:

2697.75N/m

Explanation:

Step one

This problem bothers on energy stored in a spring.

Step two

Given data

Compression x= 2cm

To meter = 2/100= 0.02m

Mass m= 0.01kg

Height h= 5.5m

K=?

Let us assume g= 9.81m/s²

Step three

According to the principle of conservation of energy

We know that the the energy stored in a spring is

E= 1/2kx²

1/2kx²= mgh

Making k subject of formula we have

kx²= 2mgh

k= 2mgh/x²

k= (2*0.01*9.81*5.5)/0.02²

k= 1.0791/0.0004

k= 2697.75N/m

Hence the spring constant k is 2697.75N/m

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3 years ago
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GuDViN [60]

Answer:

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Explanation:

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