Calculate the centripetal for the motion of the car traveling with a speed of 15.0 m/s, making a turn where the radius is 25.0 m

The crank oa rotates in the vertical plane with a constant clockwise angular velocity ω0 of 5.6 rad/s. for the position where oa is horizontal, calculate the force under the light roller b of the 10.6-kg slender bar ab.

The free body diagram shows a box being pulled to the left up a 25-degree incline. the magnitude of the normal force is

Africtionless piston-cylinder contains 50 l of saturated liquid r-134a. the piston has a mass and an area resulting in an applied pressure of 500 kpa on the refrigerant. the refrigerant is now heated until its temperature rises to 70∘c. calculate the work (in kj) done during this process.