which of the following is true? a) speed is velocity w a vector b) speed is a scalar w direction c) speed is velocity w direction d) velocity is speed w a direction

What's the general relationship between mass and gravitational force?

How is the human heart adapted to its function?

The apparent change of frequency of a source of sound due to it me relative motion between the sound and a listener is called the

How and why does the distance between 2 electrodes affect the rate of electrolysis? ... ?

1) why do we get electric shock while holding a live wire barefooted and not when wearing rubber shoes?

Two sailboats leave a harbor in the bahamas at the same time. the first sails at 23 mph in a direction 330°. the second sails at 34 mph in a direction 190°.

What conclusion can be drawn from the statement that an element has high electron affinity, high electronegativity, and a high ionization energy? A) The element is most likely from Group 1A or 2A and in period 1 or 2.

When a cyclist rides past you on the street, this is an example of

Why are galaxies visible

I hockey puck slides across an ice rink more easily than it does across a rough concrete surface why is this