Which one of the following happens with a constant velocity motion? Select one:
a. Direction and speed remain constant.
b. The path is circular and speed is constant.
Minor
c. Acceleration is constant and non-zero.
d. Velocity is changing but speed is constant.

Ablock of steel has a density of 0.29lbs per cubic inch. if the block has dimensions of 1 inch by 1 inch by 3 inches, what is its weight? a. 0.29lbs b. 0.58lbs c. 0.87lbs d. 1lbs

Aresistor with an unknown resistance is connected in parallel to a 9 ω resistor. when both resistors are connected in parallel to an emf source of 21 v, the current through the unknown resistor is measured with an ammeter to be 4 a. what is the resistance of the unknown resistor? answer in units of ω.

Describe how the motion of a spring being pushed forward and backward is similar to the motion of air particles in a sound wave.