Jack tries to place magnets on the door of his refrigerator. he observes that the magnets don't stick. he guesses that the door of the refrigerator is made of a non magnetic substance. what stage of scienctific investigation does his guess represent a. ask questions
b. construct a hypothesis
c. explain the results
d. make observation

ator. he observes that the magnets don't stick. he guesses that the door of the refrigerator is made of a non magnetic substance. what stage of scienctific investigation does his guess represent

Explanation:

refrigerator is made of a non magnetic substance. what stage of scienctific investigation does his guess represent

a. ask questions

scorpions are,

c.arachnids

  scorpions are animals in the order scorpiones, under the class arachnida, which makes them a distant cousin of spiders

happy to

pls mark as brainliest.

can be answered using momentum.

momentum = p

p1= mass1 * velocity1

p1 = p2

therefore

p1 = 6kg * 4m/s

p1 = 24kgm/s

p2=m2 * v2

24 kgm/s = 7kg * v2

v2 = 24 kgm/s / 7kg

v2= 3.42 m/s