A 20,000 kg truck is traveling at 10 m/s. Calculate the truck's momentum. (p = m v) If the truck collides with a wall, and the crush zone takes 0.01 s to stop the truck, what is the force experienced by the truck during the collision? (F Δt = m Δv => F = (m Δv)/Δt )

You are a sales representative for a company that makes a new alternate fuel for vehicles. you have prepared a presentation for the environmental engineers to sell your new product. what question do you expect the audience to ask regarding whether the new fuel will cause less damage to the environment? a. do we have to change any parts of the vehicle to use this alternate fuel? b. will the vehicles get better fuel mileage with the alternate fuel? c. how much greenhouse gas does your fuel produce compared with current fuel sources? d. is the alternate fuel more expensive than fossil fuel?

Achlorine atom has 17 protons and 18 neutrons. what is its mass number? what is its atomic number?

What conclusion can be made based on the temperature of soil when the light hits the soil at 0°, 45°, and 90° angles in section 2 of the experiment? did your results support your hypothesis? why or why not?