What s a defining feature of a system?

In order for the Road Runner to escape Wily Coyote, he had to run a distance of 100m and accomplished his feat in 30seconds. What was his velocity in m/s and in km/h? What formula must be used?

What is the range of sound that Humans can hear?

A roadway is designed for traffic moving at a speed of 66 m/s. A curved section of the roadway is in the shape of a circular arc of 290-m radius.

A toy projectile is fired from the ground vertically upward with an initial velocity of 26.5 m/s. The project arrives at its maximum altitude in 2.7s. What is the velocity of the projectile when it hits the ground? How?

Why does fluid pressure exist?

You move a 4 N object 10 meters. Find work. Then find power if it is done in 5 seconds.

An explanation of the steady state theory

If a car traveling at 60 km/h will skid 20m when its brakes lock, how far will it skid if it's traveling at 120 km/h when it's brakes lock?

The formula for sodium sulfide is na2s what does it mean

On a sunny day does a bird or an aeroplane flying high in the sky casts its shadow on the ground