Physics Please help!!

An ice skater starts with a velocity of 3.25 m/a in a 30.0 degree direction. After 8.33 s, she is moving 4.65 m/s in a 110 degree direction. What was her acceleration.

20. threshold braking in the vehicle's braking system occurs when a. the brake pedal is pushed, heel on floorboard, with full foot pressure. b. the brakes are exerting full braking power, without traction loss. c. the driver begins pushing down the brake pedal, with moderate slowdown. d. the brakes just begin to take hold with a gradual slowdown.

Which transition by an electron will release the greatest amount of energy? oa ob oc od

How many times did thomas edison mess up the light bulb