1. A 980 kg car was moving at a velocity of 10 m/s when it was
involved in a head on collision
with an 18-wheeler truck
moving in the opposite direction.
Assuming that the car came ty
stop after the collision:
a) Calculate the momentum of
the car before the collision.
b) Work out the momentum of
the car after the collision.
c) Find the change in
momentum of the car.
d) If the car took 0.3 s to stop,
calculate the force that acted
on each driver.

the gas collects in coils that then becomes a liquid that then flows through the coils inside the refrigerator

what experimental evidence led scientists to change from the previous model to this one?

a few of the positive particles aimed at a gold foil seemed to bounce back.

the colors of light emitted from heated atoms had very specific energies.

experiments with water vapor showed that elements combine in specific proportions.

cathode rays were bent in the same way whenever a magnet was brought near them.