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jarptica [38.1K]
3 years ago
6

A roller coaster at an amusement park goes from the top of a tall hill to the bottom. during this time, the roller coaster

Physics
1 answer:
Nikolay [14]3 years ago
4 0

There are a couple of things happening while the coaster goes from the top of the hill to the bottom:

  • The coaster loses gravitational potential energy.
  • The coaster's loss in potential energy becomes its gain in kinetic energy.
  • The coaster's gain in kinetic energy causes it to speed up.
  • Maybe the coaster is also losing some of its newly gained kinetic energy to friction due to contact between the coaster's internal components and air resistance.
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water current is the flow of water

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A 10.00 kg mass is attached to a 250N/m spring and set into vertical oscillation. When the mass is 0.50m above the equilibrium i
Paraphin [41]

assuming the reference line to measure the height for gravitational potential energy lying at the equilibrium position

m = mass attached to the spring = 10.00 kg

k = spring constant of the spring = 250 N/m

h = height of the mass above the reference line or equilibrium position = 0.50 m

x = compression of the spring = 0.50 m

v = speed of mass = 2.4 m/s

A = maximum amplitude of the oscillation

v' = speed of mass at the maximum amplitude location = 0 m/s

using conservation of energy between the point where the speed is 2.4 m/s  and the highest point at which displacement is maximum from equilibrium

kinetic energy + spring potential energy + gravitational potential energy = kinetic energy at maximum amplitude + spring potential energy at maximum amplitude  + gravitational potential energy at maximum amplitude

(0.5) m v² + m g h + (0.5) k x² = (0.5) m v'² + m g A + (0.5) k A²

inserting the values

(0.5) (10) (2.4)² + (10) (9.8) (0.50) + (0.5) (250) (0.50)² = (0.5) (10) (0)² + (10) (9.8) A + (0.5) (250) A²

109.05 = (98) A + (125) A²

A = 0.62 m

3 0
3 years ago
100 points for this easy question :D<br> What's Coulomb's Law? (in your own words)
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depending on the object the force pressing in on the object are equal with the quantity of the object.

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3 years ago
Read 2 more answers
I have no clue on how to do this
KatRina [158]

a)5m/s b)5

the 5 is because you add the seconds to get 8 seconds and then do the same with the distance to get 40. 40/8 = 5. speed = 5

Velocity = displacement/change in time

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I just realized how unorganised my math looks but I hope this is helpfull

3 0
3 years ago
A step-up transformer has 50 turns on its primary coil and 2000 turns on its secondary
ryzh [129]

Answer:

Vs= 6000 v

Ip=9.6 A

Explanation:

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2000/50 = Vs/150

40 x 150 = Vs

Vs= 6000 v

Vs/Vp=Ip/Is

6000/150=Ip /0.24

Ip=9.6 A

7 0
3 years ago
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