A car travels for 10s at a steady speed of 20m/s along a straight road. A traffic light changes to red, and the car slows down with a constant deceleration, so that it stops after an additional 8 seconds. Draw a speed-time graph to represent the car’s motion during the 18s described.

Immediately upon reaching its lowest point, a falling pendulum bob has its greatest amount of energy, which is the initial amount of potential energy. a. heat; less than b. heat; more than c. kinetic; less than d. kinetic; more than

Light from a sodium lamp passes through a diffraction grating that has 1000 slits per millimeter. the interference pattern is viewed on a screen 1.000 m behind the grating. the first (m = 1) two bright yellow fringes that are visible are 0.7288 m and 0.7300 m from the central maximum. what are the wavelengths of these two fringes?

Which sound characteristic is not affected by the relative motion of an object