A23-newton horizontal force westward and a 23-newton horizontal force eastward act concurrently on a 10-kilogram object on a frictionless surface. what is the magnitude of the object’s acceleration? 1) 0.0 meters/second^2 2) 1.0 meters/second^2 3) 2.3 meters/second^2 4) 1.5 meters/second^2

One day, after pulling down your window shade, you notice that sunlight is passing through a pinhole in the shade and making a small patch of light on the far wall. you see that the patch of light seems to be a circular diffraction pattern. it appears that the central maximum is about 1 cm across and you estimate that the distance from the window shade to the wall is about 3 m. what is (a) the average wavelength of sunlight? (b) the diameter of the pinhole?

What is the speed of an object at a given moment?

Suppose a diode consists of a cylindrical cathode with a radius of 6.200×10^−2 cm , mounted coaxially within a cylindrical anode with a radius of 0.5580 cm . the potential difference between the anode and cathode is 260 v . an electron leaves the surface of the cathode with zero initial speed (v initial=0). find its speed vfinal when it strikes the anode.