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enyata [817]
2 years ago
15

2. Use the diagram below to answer this question. As the ball moves from point A to C what is happening to the energy? Explain t

he potential energy and the kinetic energy values at point A as compared to C (Use complete sentences to answer the question).

Physics
2 answers:
OLga [1]2 years ago
5 0

Answer/Explanation:

The highest point of potential energy is A, when the ball rolls down the hill potential energy decreases and kinetic energy decreases, but the total energy is constant no matter what. This means the energy does not go away but instead is transferred to a different form.

A: most potential and least kinetic

B: losing potential gaining kinetic

C: losing more potential and gaining more kinetic

D: most kinetic and least potential

E: Gaining  potential and losing kinetic

F: Gaining more potential and losing more kinetic

G: more potential than kinetic but not the most potential

<u>Have a great day and mark me brainliest! :)</u>

Anika [276]2 years ago
4 0

Answer:

Explanation:

As the ball moves from point A to C, the ball will accelerate. This is because the ball's potential energy is being converted into kinetic energy. At point A when the ball starts moving, its potential energy is at its maximum while its kinetic energy is at its minimum (but non-zero as the ball starts to move.) At point C, the ball's potential energy is less than its maximum while its kinetic energy is now more than its minimum.

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A sprinter accelerates from rest to 10.0 m/s in 1.28 s . Part A Part complete What is her acceleration in m/s2? a a = 7.81 m/s2
Mashutka [201]

Explanation:

It is given that,

Initial speed of sprinter, u = 0

Final speed of sprinter, v = 10 m/s

Time taken, t = 1.28 s

a. We need to find the acceleration of sprinter. It can be calculated using first equation of motion as :

a=\dfrac{v-u}{t}

a=\dfrac{10\ m/s}{1.28\ s}

a=7.81\ m/s^2

b. Final speed of the sprinter, v = 36 km/h

Time, t = 0.000355 h

Acceleration, a=\dfrac{36}{0.000355}

a=101408.45\ km/h^2

Hence, this is the required solution.

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Explanation:

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Hope I helped !

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6 0
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Equations to use: v= λ ∙ f v=d/t
Margarita [4]

b. 460.8 m/s

Explanation:

The relationship between the speed of the wave along the string, the length of the string and the frequency of the note is

f=\frac{v}{2L}

where v is the speed of the wave, L is the length of the string and f is the frequency. Re-arranging the equation and substituting the data of the problem (L=0.90 m and f=256 Hz), we can find v:

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c. 18,000 m

Explanation:

The relationship between speed of the wave, distance travelled and time taken is

v=\frac{d}{t}

where

v = 6,000 m/s is the speed of the wave

d = ? is the distance travelled

t = 3 s is the time taken

Re-arranging the formula and substituting the numbers into it, we find:

d=vt=(6,000 m/s)(3 s)=18,000 m

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3 years ago
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Answer:

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