The driver spots a hazard ahead and applies the brakes. The lorry, with a mass of 7520kg, decelerates uniformly and comes to a stop 50m after the brakes are applied. Estimate the braking force needed to stop the lorry.

An aircraft performs a maneuver called an "aileron roll." during this maneuver, the plane turns like a screw as it maintains a straight flight path, which sets the wings in circular motion. if it takes it 35 s to complete the circle and the wingspan of the plane is 11 m, what is the acceleration of the wing tip

What is a carrier wave and how does it affect what you hear on the radio

Hydrogen and helium are both members of?