Nick is pulling a20kgcrate across a horizontal floor with a rope angled 30° above the horizontal. The coefficients of kinetic and static friction are 0.2 and 0.3 respectively. If the crate is moving at a constant speed, what is the tension in the rope?
The light is one kind of electromagnetic wave which the human eye may see, also calls the visible spectrum.In the science definition, the light refers to all electromagnetic spectrum.The light is composed by the photon for the fundamental particle, has the corpuscular property and the undulatory...
What evidence is there that light is a form of wave motion? Explain the concept of electromagnetic waves. Describe Huygen's wave theory. Explain the concept of a wave vector - how it is defined, what are its properties? Explain what exactly is absolute motion with an example?
Describe what happens when waves reflect off a boundary. a) Amplitude. b) Frequency. c) Wave speed. Reflection of Waves: When a wave incident or strikes the surface/boundary, a part of it returns in the same direction. This return of wave is called a refle...
How do electromagnetic waves work? Explain how the diffraction of light shows that light behaves like a wave. What is the wavelength of a fiber laser? How does the absorption of a photon of light lead to excitation of an optic nerve fiber?
What can you tell the patient about any possible concerns for the health of the fetus. Your response should start with an estimate of the fetal dose. d CT fluoroscopy is emerging as a convenient imaging modality for needle biopsy and drainage etc. It is accompanied by increased risks to the...
The current is defined to be “going through the loop” if it passes through that loop’s spanning surface. This may seem like a useless, ad-hoc way of defining “through”, but it turns out that the math likes it. It falls out of a theorem called “Stokes theorem“. ...
Describe the development from the flower to becoming an orange? Describe the properties of light. What part of the electromagnetic spectrum is used in photosynthesis? Why? Which color of light is the best stimulus for phototropism seen in stems? Explain. Why is the sky really blue? Describe wh...
c) Wave speed. While a shock wave is being generated by a moving wave source, is the Doppler effect also occurring? Explain. In an electromagnetic wave, what is vibrating? Give an example of a source (forcing) vibration for an electromagnetic wave. Explain how ...