What is mu in physics? - Socratic
2018年3月9日 · Physics Introduction to Physics Measurement and Units. 2 Answers NJ Mar 9, 2018 #\mu# can describe a lot ...
What is linear mass density? + Example - Socratic
2014年2月13日 · Linear mass density is the amount of mass per unit length. Just as ordinary density is mass per unit volume, linear density is mass per unit length. Linear densities are usually used for long thin objects such as strings for musical instruments. EXAMPLE Suppose we have a 0.80 mm diameter guitar string made of carbon steel (density = 7.860 g/cm³). What is the linear mass density of the string ...
How is the wave speed of a string the same as calculating the …
2017年6月22日 · The mass per unit length is μ, so its mass dm = μdx. The acceleration in the y direction is the rate of change in the y velocity, so a_y = (∂v_y)/(∂t) = ( ∂y^2)/(∂t^2). So we can write Newton’s second law in the y direction as Rearranging this gives Now we have been using the subscript 1 to identify the position x, and 2 to identify ...
Find distance up the incline? - Socratic
2017年6月28日 · I am not going to take the hint, because I am going to rotate the entire system so that the forces are described either normal to the inclined plane or parallel to the inclined plane. Summing the forces normal to the plane -F_"normal" + mvecgcos(30^@) = 0 where vecg is -9.8" m/s"^2 F_"normal" = mvecgcos(30^@) Summing the forces parallel to the incline: -vecF_"friction" + mvecgsin(30^@) = mveca ...
A car goes around a flat curve of radius 50 m at a speed of
2016年7月3日 · Centripetal acceleration is given by a=v^2/r. The minimum friction coefficient required is 0.4. (friction coefficients have no units) To find a force we need to know something about a mass, and we haven't been told the mass of the car. Let's just call it 'm' and leave it at that for the moment, because I have a feeling it will cancel out …
Knowing the coefficient of kinetic friction between the two
2017年4月30日 · The equation for the force of friction is Ff = uFN u stands for coefficient of friction, which in this case is 0.03. FN is the force normal Using the equation, 0.450 = 0.03Fn Fn = 0.450/0.03 The force normal is therefore 15N
How can I calculate the wavelength of electromagnetic radiation?
2014年8月9日 · The equation that relates wavelength, frequency, and speed of light is c = lambda*nu c = 3.00xx10^8 "m/s" (the speed of light in a vacuum) lambda = wavelength in meters nu = frequency in Hertz (Hz) or 1/"s" or "s"^(-1)". So basically the wavelength times the frequency of an electromagnetic wave equals the speed of light. FYI, lambda is the Greek letter lambda , and nu is the Greek letter nu ...
Physics topics and chapters - Socratic
Watch the best videos and ask and answer questions in 97 topics and 23 chapters in Physics. Get smarter in Physics on Socratic.
How can i calculate force of tension? + Example - Socratic
2015年10月18日 · In general, there is no formula for tension. Instead, you usually have to find all of the other forces in the problem and then solve for tension. For example, let's say there are three force acting on your object, two that you know and one unknown tension force. The object is as rest. F_1 = 5 N F_2 = -10 N a=0 T=? Using Newton's second law : sum F = F_1 + F_2 + T = m a 5 N - 10 N + T = 0 T = 5N
A car 1500 kg is turning a flat curve while moving at ... - Socratic
2018年3月27日 · The centripetal force required for circular motion of the car is provided by the force of friction between the tires and pavement. Due to Newton's Third law of motion, the car experiences centrifugal force which tends to topple it off the road in the outward direction. Force of friction along the radius R is given as f_r= mu_s|vecN| where vecN is normal reaction and =mvecg, where m is mass of ...