A square metal plate of mass 5 kg, side length 1 m, and uniform density has a 1 kg mass placed on one corner and a 2 kg mass placed on an adjacent corner. What is the distance between the 1 kg point mass and the center of mass of the system?

Modify the equation fδt=δ (mv) to find the force of friction.

Aplane takes off from an airport and flies to town a, located d1 = 215 km from the airport in the direction 20.0° north of east. the plane then flies to town b, located d2 = 230 km at 30.0° west of north from town a. use graphical methods to determine the distance and direction from town b to the airport. (enter the distance in km and the direction in degrees south of west.)

The speed of light in a material is 0.50 c. what is the critical angle of a light ray at the interface between the material and a vacuum?