Why do all objects hit with the same velocity (ignoring air resistance) if dropped from the same height?

Total amount of charge present in 1 kg of electron

What is the net force that acts on a 10N falling object when it encounters 4N resistance

Where could convection current form check all that apply

The impulse experienced by a body is equivalent to the body's change in A) velocity B) kinetic energy C) momentum D) force

The shock absorbers in a car act as a big spring. When a 92.5 kg person gets in, the car sinks 0.0131 m. What is the spring constant of the shocks? (Unit = N/m)

What is the mechanical advantage of a pulley?

What kind of movement does the heat within the core and mantle directly generate?

Explain why Newton's first law of motion can be difficult to observe in moving objects?

No force is necessary to

A boat has a mass of 4040 kg. Its engines generate a drive force of 4660 N due west, while the wind exerts a force of 880 N due east and the water exerts a resistive force of 1400 N due east. Take west to be the positive direction.