An ice skater starts with a velocity of 2.25 m/s in a 50.0 degree direction. after 8.33 s she is moving 4.65 m/s in a 120 degree direction. what is the x-component of her acceleration

An airplane flying parallel to the ground undergoes two consecutive displacements. the first is 76 km at 39.8◦ west of north, and the second is 156 km at 59.9◦ east of north. what is the magnitude of the plane’s total displacement? answer in units of km. 020 (part 2 of 2) 10.0

A500g object falls off a cliff and losers 100 j from its gravitational potential energy store. if the gravitational field strength g=9.8n/kg, how high is the cliff?

When many atoms are split in a chain reaction, a large explosion occurs. this is an example of what type of energy conservation