The mechanical energy of a football during a pass is

A. potential energy

B. kinetic energy

C. gravitational potential energy

D. potential and kinetic energy

a bungee jumper of mass 50 kg jumps from a bridge using a 10 m long cord which can be approximated as a spring with spring constant 100 n/m. how far is he going to go below the bridge is he going to go before momentarily stopping

Which of the following statements about iron filings placed upon glass resting on top of a bar magnet is false? A.

When pollen from one plant lands on the pistol of a flower on the same plant

When two objects collide, they exert forces on each other that change momentum a. law of conservation of momentum b. recoil c. relation of Newton 3rd law to momentum d. closed system

Which of the following is the best definition of refraction? A. reversal in the direction of a wave B. loss of energy from a wave C. change in wave direction due to a change in wave speed D. blocking of a wave by a sharp boundary

What did Issac Newton think he could describe?

Which two states share the property of changing shape in different containers? A. Liquids and gases B. Gases and solids C. Solids and liquids D. Solids and plasmas

Which type of soil is the most permeable? A. sand B. silt C. loam D. clay

If your mass is 20kg, and you stand on the scale (witch is your force), and the acceleration due to gravity is10m/s^2, what does the scale says your weight is?

Which statement best describes the movement of particles when a wave travels through a medium? The particles are