In a sinusoidal wave, the time required for a particular point to move from maximum displacement to zero displacement is 0.15 second. The frequency of the wave is WILL MARK THE RIGHT ANSWER THE BRAINLIEST!

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.

Two point charges are on the y axis. a 3.90-µc charge is located at y = 1.25 cm, and a -2.4-µc charge is located at y = −1.80 cm. (a) find the total electric potential at the origin. v (b) find the total electric potential at the point whose coordinates are (1.50 cm, 0). v

The force it would take to accelerate an 900-kg car at the rate of 6m/s2