A toy care is at rest until a child pushes it. The mass of the toy car is 3kg. 5 seconds later, the car is moving at a speed of 10m/s. What is the magnitude of the force the child applied?

Atemperature inversion can cause a warm air mass to move over a colder air mass. this traps the colder air mass and prevents surface air from rising. this may result in which of these? a) smog b) acid rain c) freezing rain d) a thunderstorm