Abullet of mass m is traveling to the left with a speed v when it embeds itself in a block of mass m. the block sits on a frictionless surface and is connected to a spring of stiffness k. what is the compression s of the spring when the bullet and block come to rest?

If you touch a hot light bulb and get burned, that is an example of a. radiation b. convection c. conduction

Find the vertex(use the completing the square method), findthe x- and y-intercepts, and sketch the graph offunction. y = 2x2 + 4x - 1

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?