A 20000 kg railroad car is rolling at 1.00 m/s when a 1000 kg load of gravel is suddenly dropped in. part a what is the car's speed just after the gravel is loaded?

What factors determine the amount of air resistance an object experiences?

When a rubber ball is thrown against a wall, energy is transferred and transformed. Select the statement from the list below that does not support the law of conservation of energy. * (1 Punto) A.

An object's velocity in m/s is given by the equation vx (t) = 10t-2. If it starts at x=0 at t=0, what is its position after 5 seconds?

Which type of electron occupies the outermost energy level or shell of an atom?

330 grams of boiling water (temperature 100°C, specific heat capacity 4.2 J/K/gram) are poured into an aluminum pan whose mass is 840 grams and initial temperature 29°C (the specific heat capacity of aluminum is 0.9 J/K/gram).

You wash the dishes. when you let the water down the drain, where is the water flowing the fastest?

Are good conductors of heat also good conductors of electricity? Explain your answer.

Restate newtons first law of motion

This is the body of law that codifies what a state defines as legal and/or illegal as well as the punishments for the violations of the laws.

Five workers from the same factory developed angiosarcoma, a rare cancer of the veins and arteries. Which part of the scientific method is this? Group of answer choices conclusion experiment observation none of these hypothesis