How far apart are a 900kg car and an 80kg man if they experience a gravitational attraction of 1 n?

F = G M₁ M₂ / R²

G = 6.67 x 10⁻¹¹ m³ / kg - s²

Without units . . .

1 = (6.67 x 10⁻¹¹) (900) (80) / R²

R² = (6.67 x 10⁻¹¹ x 900 x 80)

R² = 4.8 x 10⁻⁶

R = √(4.8 x 10⁻⁶)

R = 0.0022 meter

R = 2.2 millimeters

The man's center of mass has to be 2.2 millimeters from the car's center of mass.  The car's center of mass may be somewhere in the back seat, but the man's center of mass is inside him, behind his belly-button.  So the whole thing is pretty much impossible.

i dont know but

explanation:

whoever your teacher is, deserves a raise for using pokemon as an example

a solenoid is created by wrapping a l = 90 m long wire around a hollow tube of diameter d = 4.5 cm.   the wire diameter is d = 0.9 mm.   the solenoid wire is then connected to a power supply so that a current of i = 9 a flows through the wire.

randomized variablesl = 90 m

d = 4.5 cm

d = 0.9 mm

i = 9 a                                          

write an expression for the number of turns, n, in the solenoid. you do not need to take into account the diameter of the wire in this calculation.

calculate the number of turns, n, in the solenoid.

write an expression for the length of the solenoid (l2) in terms of the diameter of the hollow tube d.

calculate the length of the solenoid (l2)   in meters.

calculate the magnitude of the magnetic field at the center of the solenoid in teslas.

explanation: