Question

I need help with physics please

Answer 1

1. Part 1:

`F_g=2.20* 10^(-8)N`

2. Part 2:

`F_g=1.28* 10^(-6)N`

Step-by-step explanation:

Part 1:

1. Data:

• Fg = ?
• m₁ = 4.80 kg
• m₂ = 15.8 kg
• d = 0.480 m

2. Formula

Newton's law of gravitational attraction:

`F_g=G(m_1* m_2)/(d^2)`

Where:

• Fg is the gravitational force between two bodies
• m₁ and m₂ are the masses of the two bodies
• d is the distance that separate the centers of the two bodies
• G is the universal constant of gravitational attraction: 6.67 10⁻¹¹ N.m²/kg²

3. Solution

Substitute the data into the formula and compute:

`F_g=6.67* 10^(-11)N\cdot m^2/kg^2* (4.80kg* 15.8kg)/((0.480m)^2)`

`F_g=2.20* 10^(-8)N`

Part 2:

1. Data:

• Fg = ?
• m₁ = 4.80 kg
• d = 6.89 × 10¹¹ m
• m₂ = 1.90 × 10²⁷ kg

2. Use the same formula and use the new data:

`F_g=6.67* 10^(-11)N\cdot m^2/kg^2* (4.80kg* 1.90*10^(27)kg)/((6.89* 10^(11)m)^2)`

`F_g=1.28* 10^(-6)N`