Physics, 06.10.2019 04:30 vickydaiberg
When at rest, a proton experiences a net electromagnetic force of magnitude 9.0Γ10β13 n pointing in the positive x direction. when the proton moves with a speed of 1.6Γ106 m/s in the positive y direction, the net electromagnetic force on it decreases in magnitude to 7.4Γ10β13 n , still pointing in the positive x direction find the magnitude of the magnetic field.
Answers: 3
Physics, 21.06.2019 20:30
Protons and neutrons are found within the nucleus of an atom
Answers: 2
Physics, 21.06.2019 22:30
Follow these directions and answer the questions. 1. shine a pencil-thin beam of light on a mirror perpendicular to its surface. (if you don't have a laser light as suggested in the video, you can make a narrow beam from a flashlight by making a cone from black construction paper and taping it over the face of the flashlight.) how does the light reflect? how does the relationship of incident to reflected ray relate to the reflection of water waves moving perpendicular to a barrier? 2. shine a pencil-thin beam of light on a mirror standing on a sheet of paper on the table (or floor) so that you can mark the incident ray and reflected ray. (you can support the mirror from the back by taping it to a wooden block.) 3. mark a line on the paper representing the reflective surface. (the reflective surface of a mirror is usually the back edge.) 4. draw a dashed line perpendicular to the mirror surface at a point where the incident and reflected ray meet. this perpendicular is called a normal to the surface. 5. measure the angles between the rays and the normal. the angle of incidence is the angle formed by the incident ray and the normal to the surface. the angle formed by the reflected ray and normal is called the angle of reflection (r). what is the angle of incidence? what is the angle of reflection? 6. repeat for several different angles. (see report sheet for details.) what appears to be the relationship between the angle of incidence and angle of reflection? in science 1204, what was the relationship for these two angles made by the reflection of waves in a ripple tank? 7. roll a ball bearing so that it hits a fixed, hard surface (a metal plate) at several angles (including head-on). observe the way in which the ball bearing reflects. what generalization can you make about how a ball bearing reflects from a wall? have you proved that light can only behave like a wave?
Answers: 1
Physics, 22.06.2019 05:40
Two polarizers are oriented at 40β to each other and plane-polarized light is incident on them. if only 16 percent of the light gets through both of them, what was the initial polarization direction of the incident light?
Answers: 2
When at rest, a proton experiences a net electromagnetic force of magnitude 9.0Γ10β13 n pointing in...
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