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Klio2033 [76]
4 years ago
8

An object accelerates at 3 meters per second when a 10-newton (N) force is applied to it. Which force would cause this object to

accelerate at 6 meters per second?
Physics
1 answer:
Feliz [49]4 years ago
7 0

Answer: Net force

Explanation: all you really have to do is subtrach 3 from ten to get the net force and how fast the object is going

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How much work is required to carry an electron from positive terminal of 12Volt battery to negative terminal?
Oliga [24]

Answer:

Explanation:

Work required = q x V

where q is charge on electron and V is potential difference

= 1.6 x 10⁻¹⁹  x 12

= 19.2 x 10⁻¹⁹ J

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3 years ago
The electrical conductivity of a substance depends on the ability of the ____ in it to move. A) electrons B) neutrons C) protons
musickatia [10]

The correct answer to the question is A) Electrons.

EXPLANATION:

The electrical conductivity of a metal or any substance depends on the free electron concentration of the metals.

Free electrons are those electrons which are present in the conduction band of the metals. These electrons experience less amount of force attraction from the nucleus. Protons and neutrons do not  contribute anything to the current conduction in a metal.These sub atomic particles are bound to the nuclei of atoms.

When we maintain potential difference across the two ends of a conductor, the free electrons are drifted towards the positive terminal of the battery.

Hence, electrical conductivity of a substance is the ability of the electrons to move inside the substance.

More is the conductivity of the substance, the lesser is the resistance to the flow of electrons inside the substance, and vice versa.

5 0
4 years ago
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A 2000-kg truck traveling at a speed of 6.0 m/s slows down to 4.0 m/s along a straight road. What
antiseptic1488 [7]
Answer: -4000 kg • m/s

3 0
3 years ago
Which of these is an indication that a chemical reaction has occurred?
BabaBlast [244]

3.

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8 0
4 years ago
Two physics students are standing on skateboards and facing each other. Their masses, including the skateboards, are 95 kg and 5
andrey2020 [161]

Answer:

1) \sum \vec p=0\ kg.m.s^{-1}

2) v_2=55.078\ m.s^{-1}

Explanation:

Given:

  • mass of heavier student, m_1=95\ kg
  • mass of lighter student, m_2=58\ kg
  • velocity of the heavier student after the mutual push, v_1=3.1\ m.s^{-1}

1)

Since they push each other and we are neglecting any friction that means we can consider this as a perfectly elastic collision. So the momentum of the two bodies will be equal and in opposite direction.

Since momentum is a vector quantity so the total momentum of the system as a whole will be zero.

2)

<u>From the condition of elastic collision:</u>

p_1=p_2

m_1.v_1=m_2.v_2

95\times 3.1=58\times v_2

v_2=55.078\ m.s^{-1}

6 0
4 years ago
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