A6 kilogram concrete block is dropped from the top of a tall building. the block has fallen a distance of 55 meters and has a speed of 30 meters per second when it hits the ground. a. at the instant the block was released, what was its gravitational potential energy? b. calculate the kinetic energy of the block at the point of impact. c. how much mechanical energy was "lost" by the block as it fell? d. explain what happened to the mechanical energy that was "lost" by the block.

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2. -/1 pointsserpse10 2.7.p.017.mi. an object moving with uniform acceleration has a velocity of 14.0 cm/s in the positive x direction when its x coordinate is 2.97 cm. if its x coordinate 2.85 s later is -5.00 cm, what is its acceleration? cm/s2 need ? read it master it

Pl asaaap ! match the term to the correct description. a type of wave that transfers energy where the particles in the medium move perpendicular to the direction in which the energy is traveling. a type of wave that transfers energy where the particles in the medium move parallel to the direction in which the energy is traveling. movement that is back and forth, like an equal sign = a type of wave that transfers energy where the particles in the medium move in a circle motion while the energy travels left or right. movement that is like a t transfers energy from one location to another 1. wave 2. parallel movement 3. perpendicular movement 4. transverse wave 5. longitudinal wave 6. surface wave