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Mademuasel [1]
2 years ago
10

Desde lo alto de un acantilado de 140 m, se lanza verticalmente un objeto hacia abajo con velocidad de 3m/s. Entonces la magnitu

d del desplazamiento que ejecuta en t = 3s es: (use g = 10 m/s2)
Physics
1 answer:
grin007 [14]2 years ago
7 0

Answer:

54

Explanation:

d = vo*t + ½*g*t²

d = 3*3 + ½*10*3²

d = 9 + 45

d = 54 m

entonces el objeto tiene 54 m de desplazamiento

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3. What exerts a greater force on the table of 2 kg book lying flat or a 2 kg book on its
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Answer:

A book on its side exerts a greater force.

Explanation:

Pressure = Force / Area

Assuming that 1kg = 10N

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Pressure of book lying flat = 20N / 0.6m²

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2 years ago
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3 years ago
Determine tge energy in joules of a photon whose frequency is 3.55x10
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Hope it helped!
6 0
3 years ago
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