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Marat540 [252]
3 years ago
13

56 J of work was done to increase the kinetic energy of a 1.90 kg mass. If the object’s initial velocity was zero, what is its s

peed now?
Physics
1 answer:
const2013 [10]3 years ago
7 0

Answer:

7.68 m/s

Explanation:

Ek = 56 J

m = 1.90 kg

u = 0

v = ?

Ek = 0.5m(v - u)²

56 = 0.5×1.90×(v -0)²

56 = 0.5×1.90v²

56 = 0.95v²

v² = 56/0.95 = 58.95

v =√58.95

v = 7.68 m/s

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Answer:

generator

Explanation:

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2 years ago
Where must an object be placed to form an image 30.0 cm from a diverging lens with a focal length of 43.0 cm?
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Using lens equation;

1/o + 1/i = 1/f; where o = Object distance, i = image distance (normally negative), f = focal length (normally negative)

Substituting;

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3 years ago
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7 0
3 years ago
Joey drives along the 110 South freeway and notices a mile marker that reads 260 miles. He drives until he reaches the 150 mile
Nostrana [21]

Answer:

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ELEN [110]
<span>radiation, hydrogen, and helium </span>
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