In which situation is no work considered tone be done by a force? a) when the angle between the force and displacement is 180° b) when the angle between the force and displacement is 90° c) when the angle between the force and displacement is 45° d) when the angle between the force and displacement is 0°

Choose the most likely outcome of this scenario: jen decided to go bike riding without a helmet. while no one is around during her ride, she is thrown from her bike when her wheel goes into a pothole. she is not injured, but she is terrified to get back on her bike. what happens next? a. her physical health is affected even though she wasn't hurt. b. her mental and emotional health are affected because she is afraid to get back on her bike. c. her social health is affected because she is worried her friends saw the fall. d. her overall health is not affected at all by her fall.

Select all the correct answers. which three statements about electromagnetic radiation are true?

Heterogeneous mixture with larger particles that never settle is