If test pilot ace dimmer were sitting in his jet on the runway, his weight (supporting force) would be 600 n. when he is flying an upside down loop of radius 1000 m (1 km) at a speed of 200 m/s, with what force does his seat press on him? (remember, he is upside down.) the acceleration due to gravity is g = 10 m/s2 .

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?

What happens to the light rays when they hit the specimen?

The percent efficiency of a machine can never be 100% (or greater), because in the real world some energy is always converted into a. heat b. work c. input force d. output force