A lens with f= 20.0 cm creates a virtual image at -37.5 cm (in front
of the lens). What is the object
distance?

Using the given data table, calculate the acceleration of the skateboarder. you can use either form of the equation below?

What tightening torque should be used for a hexagonal head screw (not split-bolt) on a 250 kcmil conductor?

Photoelectrons with a maximum speed of 6.50 x 107 m/s are ejected from a surface in the presence of light with a frequency of 6.75 x 1014hz. if the mass of an electron is 9.10 x 10-31 kg, calculate in joules the maximum kinetic energy of a single electron. 3.84 x 10-15 j 1.92 x 10-15 j 5.92 x 10-23 j 3.07 x 10-16 j