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Juliette [100K]
3 years ago
5

A cat rolls up a hill. It’s initial Velocity is 10 m/s.n It’s final velocity is 0 m/s. The time was five seconds. Calculate Acce

leration
Physics
1 answer:
aleksklad [387]3 years ago
6 0

Answer:

\boxed {\boxed {\sf a= -2 \ m/s^2}}

Explanation:

Acceleration can be found by dividing the change in velocity by the time.

a=\frac{v_f-v_i}{t}

The final velocity of the cat was 0 meters per second and the initial velocity was 10 meters per second. The time was 5 seconds.

v_f=0 \ m/s\\v_i=10 \ m/s\\t= 5 \ s

Substitute the values into the formula.

a=\frac{0 \ m/s-10 \ m/s}{5 \ s}

Solve the numerator.

  • 0 m/s-10 m/s= -10 m/s

a=\frac{-10 \ m/s}{5 \ s}

Divide.

a= -2 \ m/s^2

The acceleration of the cat was -2 m/s². The negative acceleration indicates slowing down or stopping.

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Answer:

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Find the specific heat of a substance that requires 8000 J of energy to heat up 400g by 20 C?
monitta

Answer:

c=1\ J/g^\circ C

Explanation:

Given that,

Heat required, Q = 8000 J

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The heat required due to change in temperature is given by :

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Consider the uniform electric field E = (8.0ĵ + 2.0 ) ✕ 103 N/C. What is its electric flux (in N · m2/C) through a circular area
cluponka [151]

Answer:

5.09 x 10⁵ Nm²/C

Explanation:

The electric flux φ through a planar area is defined as the electric field Ε times the component of the area Α perpendicular to the field. i.e

φ = E A

From the question;

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r = radius of the circular area = 9.0m

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