Suggest how this affects friction and helps the skater
Suggest why ice skates have a
jagged edge at the front,
Tvres have treads to remove water
from between the tyre and the road

What do radio waves and microwaves have in common? both are at the side of the spectrum that has the shortest wavelengths. both are at the side of the spectrum that has the lowest radiant energy. both are at the side of the spectrum that has the lowest frequency. both are found next to visible light on the electromagnetic spectrum.

What is the average speed of a car that travels 40mph for 1 hour and 60 mph in another hour will mark brainliest

Ablock having mass m slides down an inclined plane. the force of friction between the block and the inclined plane is f, the block's weight is m g, and the normal force is n. (a) draw a free – body force diagram showing the forces acting on the block. (b) write down all relevant newton’s equations for a given situation.