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tia_tia [17]
2 years ago
11

Two carts with masses of 4.32 kg and 2.66 kg move toward each other on a frictionless track with speeds of 4.86 m/s and 3.93 m/s

respectively. The carts stick together after colliding head-on. Find the final speed.
Physics
1 answer:
ollegr [7]2 years ago
6 0

Answer:

m¹v¹+m¹v¹=(m¹+m²)v

4.32*4.86+2.66*3.93=(3.96+4.86)v

v=31.44/8.82

=3.56

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In this reaction diagram which part represents the doffrence in energy between the reactants and the products?
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The correct answer is - option C. G.

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After landing on an unfamiliar planet, a space explorer constructs a simple pendulum of length 53.0 cm . The explorer finds that
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12.4 m/s²

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Time period of the pendulum is given as

T = \frac{t}{n}

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4 0
3 years ago
A child’s toy that is made to shoot ping pong balls consists of a tube, a spring (k = 18 N/m) and a catch for the spring that ca
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Answer:

The height is 3.1m

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then we have only gravitational potencial energy when the ball is at its maximun height.

E_g=m*g*h

because all the energy was transformed Eg=Ee

h=\frac{0.081J}{9.8m/s^2*m}

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h=\frac{0.081J}{9.8m/s^2*(2.7*10^{-3}kg)}\\h=3.1m

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