at a certain instant the velocity of a vehicle moving in a straight line is 40 km per hour after 2 second the velocity is 46 kilometre per hour and 2 second later it is 52 kilometre per hour what is the acceleration of the vehicle in metre per second square​

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

To do work, this truck uses energy stored in chemical fuel and an electrical battery. how much total energy does this truck put out?

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.