A 20.0-kg mirror with a surface area of 1.0 m2 and a 98% reflectivity is bombarded by light of average intensity 789.0 W/m2 at an angle of 30 degrees to the normal of its surface. If the light has a duration of 0.50 s how much does the velocity of the mirror change during that time?

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.

Afrequency generator sends a 550 hz sound wave through both water and ice. what is the difference in wavelength between the wave produced in ice and the wave produced in water?

Smallest intensity of a stimulus that you can detect 50 percent of the time is