Describe the interactive roles and statuses of individuals and groups in your community.

Sound in water travels at a velocity governed by the relation v = √ (B/rho) where B is the bulk modulus and rho is the density. For salt water, take B = 2.28 * 109 Pa and rho = 1043 kg/m3.

If an object is thrown in an upward direction from the top of a building 160 ft. high at an initial speed of 21.82 mi/h., what is its final speed when it hits the ground? (Disregard wind resistance.

Velocity times height

Flasher units are being discussed. Technician A says that a DOT (Department of Transportation) approved flasher unit should be used for turn signals.

If a girl makes a homemade sling shot that requires a force of 14 N to pull it's pebble (.08kg) into place at 0.1 m from the resting position of the sling shot, the maximum velocity of the pebble will be

Two copper wires with different diameters are joined end to end. If a current flows in the wire combination, what happens to electrons when they move from the larger-diameter wire into the smaller-diameter wire?

A baseball player is warming up and tosses a ball straight up into the air. The ball travels up until it reaches some maximum height, and then falls back down to the player/'s hand.

Volume can be measured in liters or cubic meters. a. T b. F

A spring with a spring constant of 1200 N/m has a 55-g ball at its end. The energy of the system is 5.5J. What is the amplitude of vibration?

Force F1 acts on a particle and does work W1. Force F2 acts simultaneously on the particle and does work W2. The speed of the particle does not change. Which one of the following must be true? a. W1 is zero, and W2 is positiveb. W1 = - W2c.