You usually see lightning before you hear thunder because light travels faster than sound. Juan saw a flash of lightning and heard the thunder 6.00 seconds later. Sound waves travel at a speed of 340. m/s in air. What distance was Juan from the lightning?

Acoil suspended freely, points in some direction when no current is passed through it . can you tell what will happen when a current is passed though it?

Which planets are visible without a telescope

Six pendulums of mass mand length las shown are released from rest at the same angle theta from vertical. rank the pendulums according to the numberof complete cycles of motion each pendulum goes through perminute. a. l= 1m m=2kg b. l= 4m m=1 kg c. l= 2 m m= 2 kg d. l= 1 m m= 4 kg e. l= 2 m m = 4 kg f. l= 4m m = 4kg