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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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A 3874-kg rollercoaster is brought to the top of a 42m hill in 40 seconds,then drops 28m before the next hill.
Ede4ka [16]

(a) The work required to get the coaster to the top of the first hill is  1,594,538.4 J.

(b) The power required to bring the train to the top of the first hill is 39,863.46 W.

(c) The energy lost when the coaster drops is 531,512.8 J.

(d) The left at the bottom is determined as 1,063,025.6 J.

<h3>Work done to bring the rollercoaster top of the hill</h3>

W = Fn x d = mgh

W = 3874 x 9.8 x 42

W = 1,594,538.4 J

<h3>Power dissipated in bringing the rollercoaster on top hill</h3>

P = Fv

P = Fd/t

P = W/t

P = 1,594,538.4 /40 = 39,863.46 W

<h3>Energy lost when the coaster drops</h3>

E = 1,594,538.4 - (3874 x 9.8 x 28)

E = 531,512.8 J

<h3>Energy left at the bottom</h3>

E = 3874 x 9.8 x 28 = 1,063,025.6 J

Learn more about energy here: brainly.com/question/13881533

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6 0
2 years ago
Why did the “yielders” conform in Asch’s experiment?
svet-max [94.6K]

Answer:

Asch's experiment showed that about 75% of people were "yielders" who conformed and 25% were "independent" who didn't conform. Asch concludes that people ignored reality and gave an incorrect answer in order to follow the rest of the group.

4 0
3 years ago
Why current remains same in series combination of resistors in all resistors and p.d. remains different?
IgorC [24]
Current at all points of a series circuit must be the same, because there's no place in the circuit where electrons are being manufactured, and no place where they're leaking out and falling on the floor. The nimber of electrons that leaves the loop is the same number that entered it. I'm not sure what is nmeant by "p.d. remains different" .
4 0
3 years ago
What is the velocity of a penny dropped from the roof after 5 seconds?
Ksivusya [100]

Answer:

49 m/s

Explanation:

Acceleration = velocity / time

You should know accleration due to gravity is 9.8 m/s^2 and you're given t = 5, so you can solve for velocity:

9.8 = v / 5

v = 49

4 0
3 years ago
How do fungi get food?
Brrunno [24]

Answer:

They decompose dead things and absorb the nutrients and get their food

7 0
3 years ago
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