A car is on an inclined plane at an angle of 15 degrees. The car has a free body diagram with three vectors coming from it. The first is parallel to the incline and up the incline labeled F Subscript f Baseline. The force upward and perpendicular to the car is labeled F Subscript N Baseline. The third force pointed down is labeled F Subscript g Baseline and is broken up into two perpendicular components labeled F Subscript g y Baseline and the other F Subscript g x Baseline. Examine the forces acting on a car on a ramp. Select the forces or force components that need to be added together to calculate the net force in the x-direction. Check all that apply. FN
–Ff
–Fg
Fg (cos 15°)
Fg (sin 1

Follow these directions and answer the questions. 1. set up the ripple tank as in previous investigations. 2. bend the rubber tube to form a "concave mirror" and place in the ripple tank. the water level must be below the top of the hose. 3. generate a few straight pulses with the dowel and observe the reflected waves. do the waves focus (come together) upon reflection? can you locate the place where the waves meet? 4. touch the water surface where the waves converged. what happens to the reflected wave? 5. move your finger twice that distance from the hose (2f = c of c, center of the curvature) and touch the water again. does the image (the reflected wave) appear in the same location (c of c)? you may have to experiment before you find the exact location. sometimes it is hard to visualize with the ripple tank because the waves move so quickly. likewise, it is impossible to "see" light waves because they have such small wavelengths and move at the speed of light. however, both are examples of transverse waves and behave in the same way when a parallel wave fronts hit a curved surface.

What are the necessary conditions for fusion?

What is the increase in density of a medium due to wave travel?