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stellarik [79]
3 years ago
11

A glacier is eroding the land over which it passes. It moves at a rate of 2 m per day. Currently, the glacier is 80 km from a sm

all village. At current rates of movement, how many years before the glacier reaches the village? Plz help its due tomorrow and ill mark u brainliest!
Physics
1 answer:
Ostrovityanka [42]3 years ago
6 0
It's about 110 years. There are 1000 meters in a kilometer so you have to convert 80km into meters, which is 80,000. Once you do that you divide 80,000 by 2 to get 40,000. Then you have how many days it takes to reach the village. You need to find how many years 40,000 days is. Divide 40,000 by 365 and you'll get your answer, about 110 years. Hope that helped!
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The tub of a washer goes into its spin-dry cycle, starting from rest and reaching an angular speed of 4.0 rev/s in 9.0 s. At thi
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Answer:

48 rev

Explanation:

a) we can calculate the distance covered by the tube using the formula:

θ = (ω + ωo)t/2

where ω is the final angular speed, θ is the distance covered, t is the time taken, ωo is the initial angular speed.

Firstly, we calculate the distance covered from 0 to 9 s then from 9s to 24 s.

within 9s, the tub runs from rest (0) to 4 rev/s, hence:

t = 9s, wo = 0, w = 4 rev/s = (4 * 2π) rad/s = 8π rad/s. Hence:

θ = (ω + ωo)t/2 = (0 + 8π)9 / 2 = 36π rad

θ = 36π rad = (36π)/2π rev = 18 rev

Also, within 15 s, the tub runs from 4 rev/s to rest, hence:

t = 15 s, wo = 4 rev/s = 8π rad/s, w = 0 rad/s. Hence:

θ = (ω + ωo)t/2 = (8π + 0)15 / 2 = 60π rad

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Some believe that the positions of the planets at the time
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Answer:

1.4007\times 10^{-8}\ N

1.50075\times 10^{-6}\ N

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The force between the baby and Jupiter is 0.000000667\ N

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