Jamie followed the steps below to solve for a in the equation V = Vi + at. Explain her error and write what you would’ve done correctly to solve for a.

What is tan(61)? а. 1.80 b. 0.49 c. 0.61 d. 0.87

Many machines- including inclined planes such as ramps- increase the strength of the force put into the machine but decrease the distance over which the force is applied. true or false

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?