Which statement best describes how light waves travel in a uniform medium?

A.

in straight lines

B.

in extending circles

C.

in bent lines

D.

in shrinking ripples

A mass of 9.2 kg is accelerated at 2.1 m/s2. What is the force?

Who revised Wegener's theory by adding the convection currents under the Earth as the cause for the movement?

If a negatively charged particle moves into a magnetic field traveling in a straight line, how would you expect its motion to change? A) The particle would slow and stop moving. B) The particle would travel in a curved path.

How do covalent bonds form between atoms?

Frequency is the number of oscillations (or cycles) per 1) Minute 2) hour 3) day 4) second

Why fan rotates in a clockwise direction and why not in a anti clockwise direction

If the force of gravity increases, which mearsurement will change and how? A.) weight decreases B.) mass increases C.) mass decreases D.) weight increases

A 6.0 kg box slides down an inclined plane that makes an angle of 39° with the horizontal. If the coefficient of kinetic friction is 0.19, what is the magnitude of the acceleration, in m/s2, of the box down the slope?

Identify the following as a suspension or a colloid. sand in water

A cyclist starts at a position of 0 m and takes 3 s to move east to a position of + 8 m. He then cycles west to a position of + 5 m which takes an additional 2 s. What is the cyclist's displacement? a. + 11mb. - 8mc. - 5m d. + 5m