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katrin [286]
3 years ago
10

What is the minimum energy required to lift an object weighing 200 Newtons at a height of 20 meters?

Physics
1 answer:
lakkis [162]3 years ago
4 0
Work = force x distance

200 Newtons x 20 meters

= 4,000 Joules
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um can someone please help me I'm really stuck on this question and an explanation would be nice thank you
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If Earth were twice as far from the sun, the force of gravity attracting the Earth to the Sun would be
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A 4 kg and 6 kg bowling ball are dropped from the same height at the same time. The two balls strike the ground at the same time
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The force of gravity on objects is proportional to the mass of each object.

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The forces of gravity between the Earth and the 6kg ball are 50% greater
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5 0
3 years ago
A negative charge of -2.0 C and a positive charge of 3.0 C are separated by 80 m. What is the electrostatic force between the tw
faltersainse [42]

Answer:

1. 8437500 N

2. The force between the two charges is attractive.

Explanation:

1. Determination of the force between the two charges.

Charge 1 (q₁) = –2.0 C

Charge 2 (q₂) = 3.0 C

Distance apart (r) = 80 m

Electrical constant (K) = 9×10⁹ Nm²/C²

Force (F) =?

F = Kq₁q₂ / r²

F = 9×10⁹ × 2 × 3 / 80²

F = 5.4×10¹⁰ / 6400

F = 8437500 N

Thus, the force of attraction between the two charges is 8437500 N

2. From the question given, the charges are:

Charge 1 (q₁) = –2.0 C

Charge 2 (q₂) = 3.0 C

We understood that like charges repels while unlike charges attract. Since the two charges (i.e –2 C and 3 C) has opposite signs, it means they will attract each other.

Thus the force between them is attractive.

6 0
3 years ago
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