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3 years ago

6

An ice hockey player is skating on an ice rink. The rink has a coefficient of kinetic friction of roughly 0.1. If the normal for

ce on the hockey player is 800. N, what is the frictional force acting on the hockey player?

1 answer:

AlekseyPX3 years ago

3 0

Answer:yes

Explanation:he divided by the numnebr of hockey pucks

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Searches related to Probability questions - A person frequents one of the two restaurants KARIM or NAZEER, choosing Chicken’s it

balandron [24]

Answer:

a) 0.42

b) Independent

c) 30%

d) 0.88

Explanation:

Person chooses Chicken's item : 70% = 0.7

Person chooses fish's item : 30% = 0.3

Visits in which he orders Afghani Chicken = 60% = 0.6

a)

Probability that he goes to KARIM and orders Afghani Chicken:

P = 0.7 * 0.6 = 0.42

b)

Two events are said to be independent when occurrence of one event does not affect the probability of the other event's occurrence. Here the person orders Afghani Chicken regardless of where he visits so the events are independent.

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P = 0.30 because he orders Afghani Chicken regardless of where he visits.

d)

Let A be the probability that he goes to KARIM:

P(A) = 0.7 * ( 1 - 0.6 ) = 0.28

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P(B) = 0.3 * 0.6 = 0.18

Let C be the probability that he goes to KARIM and orders Afghani chicken:

= 0.7 * 0.6 = 0.42

So probability that he goes to KARIM or orders Afghani Chicken or both:

P(A) + P(B) + P(C) = 0.28 + 0.18 + 0.42 = 0.88

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