A 0.28-kg stone is thrown vertically into the air, rising to a height of 4.3 meters. What was the magnitude of the impulse it received from the person tossing the stone

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?

1400 kg car has a speed of 27 m/s. if it takes 7 s to stop the car, what is the impulse and the average force acting on the car?

Which quantities are scalars? choose all that apply a.distance b.speed c. acceleration d.velocity