A 1,500 kg car is driving down a road. The coefficient of friction between the car's tires and the road is 0.27
a. What is the weight of the car?
b. What is the normal force acting on the car?
C. What is the force of friction acting on the car?

Which simple machine is not part of this compound machine? a. lever b. pulley c. inclined plane d. wheel and axle

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.

In the first law of thermodynamics, triangle e=q-w, what does q stand for