ILW In Fig. 9-21, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. The alpha particle is scattered at angle θ 1 = 64.0° and the oxygen nucleus recoils with speed 1.20 × 10 5 m/s and at angle θ 2 = 51.5°. In atomic mass units, the mass of the alpha particle is 4.00 u and the mass of the oxygen nucleus is 16.0 u. What are the (a) final and (b) initial speeds of the alpha particle? Figure 9-21 An elastic collision between two bodies in which the collision is not head-on. The body with mass m 2 (the target) is initially at rest.
ILW In Fig. 9-21, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. The alpha particle is scattered at angle θ 1 = 64.0° and the oxygen nucleus recoils with speed 1.20 × 10 5 m/s and at angle θ 2 = 51.5°. In atomic mass units, the mass of the alpha particle is 4.00 u and the mass of the oxygen nucleus is 16.0 u. What are the (a) final and (b) initial speeds of the alpha particle? Figure 9-21 An elastic collision between two bodies in which the collision is not head-on. The body with mass m 2 (the target) is initially at rest.
ILW In Fig. 9-21, projectile particle 1 is an alpha particle and target particle 2 is an oxygen nucleus. The alpha particle is scattered at angle θ1 = 64.0° and the oxygen nucleus recoils with speed 1.20 × 105 m/s and at angle θ2 = 51.5°. In atomic mass units, the mass of the alpha particle is 4.00 u and the mass of the oxygen nucleus is 16.0 u. What are the (a) final and (b) initial speeds of the alpha particle?
Figure 9-21 An elastic collision between two bodies in which the collision is not head-on. The body with mass m2 (the target) is initially at rest.
Imagine you are out for a stroll on a sunny day when you encounter a lake. Unpolarized light from the sun is reflected off the lake into your eyes. However, you notice when you put on your vertically polarized sunglasses, the light reflected off the lake no longer reaches your eyes. What is the angle between the unpolarized light and the surface of the water, in degrees, measured from the horizontal? You may assume the index of refraction of air is nair=1 and the index of refraction of water is nwater=1.33 . Round your answer to three significant figures. Just enter the number, nothing else.
Physics for Scientists and Engineers: A Strategic Approach, Vol. 1 (Chs 1-21) (4th Edition)
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