As pictured below, you have a box, of unknown mass m, and push it against a spring, k = 100 N/m, compressing it by some distance x. The box, when it leaves the spring, slides over a rough patch of floor, a distance D-20 cm, before sliding up a smooth hill (angled 30 degrees with respect to the horizontal), and coming to rest a height L above the floor. L [cm] 600 500 You repeat this experiment several times, plotting the height is rises, L, as a function of how far you compress the spring x (you find you need to use x² to get a linear plot in StatKey): 400 300 200 100 0 x=0 200 711 v=0 600 x² [cm³] y=0 800 1000 1200 Summary Statistics switch Variables x^2 [cm^2] Lic 100.000 253.000 442.000 228.913 Statistic Mean Standard Deviation Sample Size Correlation Slope Intercept Scatterplot Controls Show Regression Line 7 0.997 0.516 -5.07 What is the coefficient of kinetic friction between the floor and the box in the "rough patch" (length D)? Note: The answer should be entered as a decimal, and not as a fraction

As pictured below, you have a box, of unknown mass m, and push it against a spring, k = 100 N/m, compressing it by some distance x. The box, when it leaves the spring, slides over a rough patch of floor, a distance D-20 cm, before sliding up a smooth hill (angled 30 degrees with respect to the horizontal), and coming to rest a height L above the floor. L [cm] 600 500 You repeat this experiment several times, plotting the height is rises, L, as a function of how far you compress the spring x (you find you need to use x² to get a linear plot in StatKey): 400 300 200 100 0 x=0 200 711 v=0 600 x² [cm³] y=0 800 1000 1200 Summary Statistics switch Variables x^2 [cm^2] Lic 100.000 253.000 442.000 228.913 Statistic Mean Standard Deviation Sample Size Correlation Slope Intercept Scatterplot Controls Show Regression Line 7 0.997 0.516 -5.07 What is the coefficient of kinetic friction between the floor and the box in the "rough patch" (length D)? Note: The answer should be entered as a decimal, and not as a fraction

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

Drop-load (I)This exercise is part of a series of problems aimed at modelling a situation by progressively refining our model to consider more and more parameters. This progressive approach is very close to what professional scientists do! Context We want to lower a suspended load in a controlled way so that it hits the ground with a speed whose modulus is not too great. To do this, the suspended load (B) is connected by a rope passing through a pulley to another mass (A), which can move on a horizontal surface. Information The masses of the charges A and B are known.The pulley is a ring of mass mp and radius R that can rotate without friction.The surface on which mass A is placed is horizontal.There is no friction between mass A and the surface on which it is placed.The string attached to mass A is perfectly parallel to the surface on which the mass rests. SchematizationDraw a diagram of each object that interests us. Draw x- and y-axes for each object. Draw and name each force…
Let's say that the semiempirical binding energy formula is Eb= aA-bA^2/3 - s(N-Z)^2/A -dZ^2/A^1/3 where a,b,s,d are constants. Imagine that you are in a different universe where there are 3 types of nucleons with spin equal to 1/2 and electric charges equal to +1, -1 and 0. Mass similar to that of a proton. Forces are similar to those of our universe. i) How do equations change for A and Z as a function of N+, N-, No and what is the semiempirical equation for the binding energy as a function of A, Z, and No? ii) At what Z and No do we have the maximum and minimum binding energy for every A? iii) When do we have stable nuclei under beta (β) decay? If "alpha particle" in this situation has N+ = N- = No = 2, what does apply for alpha (α) decay? iv) What does apply for nuclear fission and finally, how would life be in this situation?
: You are abducted by aliens and find yourself locked in a large room on some strangeplanet. To pass the time, you decide to do some experiments using a ball-and-chain thatyou find on the floor. You make the following estimates:mBALL  7 kg ,mCHAIN  0.5 kg, and CHAIN  2 m .(a) When you hold the free end of the chain above your head and allow the ball to swinglike a pendulum, you use your wristwatch to measure the period asT  4 s. What is theacceleration due to gravity on this planet?(b) If the ball accidentally hits a wall, how long does it take for this jolt in the chain totravel up to your hand?
A Jello desert resting on a plate is starts wiggling when it is sheared to the side 0.5 cm as is set on the table. The desert is a rectangular prism with a square face 25.0-cm on a side and a height of 12.0 cm. A quick Google search reveals that the density of Jello is 1140 kg/m3 with shear modulus of 530 N/m2. What is its rate of oscillation? If the energy of oscillation is dissipated at the rate of 5.00 x 10-5 J per second how long will the block wiggle?
65 I 5:11 docs.google.com/forms 2 2.4 m/s Clear selection A simple pendulum is made of a 50 cm-string and a bob of mass m. At t = O, the pendulum is at its equilibrium position and is given an initial velocity v = 0.2 m/s. The maximum angular speed, O'max, is: 0.4 rad/s 0.1 rad/s 0.2 rad/s 0.8 rad/s 0.05 rad/s A mass-spring system oscillates on a frictionless horizontal surface in simple harmonic motion with an.
You are designing a roller coaster ride. The cars (mass m) start from rest at the top (height H) of a 45 degree incline. They pick up speed and complete the loop (diameter h). Assuming a frictionless track, how high must you build the start of the ride in order for the riders to feel wightless at the top of the loop? No values given, leave equations in terms of m, h, and H.
A particle of mass m is suspended from the ceiling of a hollow block a massless cord as shown in the figure . the block is pulled up a wedge that makesan angle ɸ with the horizontal at a constant accelaration a . ıf the cord makes aconstant angle Ɵ the perpendicular to the ceiling , what is a in terms of ɸ , Ɵ and gravitational acceleration g. ( g= 10m/s2 )
Hitting a Golf Ball A golf ball is hit so that its height h in feet after t seconds is h(1) = =16r² + 64t. (a) What is the initial height of the golf ball? (b) How high is the golf ball after 1.5 seconds? (c) Find the maximum height of the golf ball. (d) What is the domain and range of h in the con- text of this application?
Drop-load (I)This exercise is part of a series of problems aimed at modeling a situation by progressively refining our model to take into account more and more parameters. This progressive approach is very close to what professional scientists do! context We want to lower a suspended load in a controlled way, so that it hits the ground with a speed whose modulus is not too great. To do this, the suspended load (B) is connected by a rope passing through a pulley to another mass (A), which can move on a horizontal surface. To slow down the descent, we added a spring behind the mass (A). Information The masses of the charges A and B are known.The mass of the rope itself is negligible (very small compared to the loads).The pulley has negligible mass and can rotate without friction.The charge ? is initially stationary and is at a known height h.The surface on which mass A is placed is horizontal.There is no friction between mass A and the surface on which it is placed.The string attached…
Ів 00 WB WC DBC A LA WA P lc UBC Engineering A kid excitedly swings his foam cut-out hammer. If point P acts like a pin and the hammer rotates about kg that point, what is the moment of inertia of the hammer? The foam has a density of p = 150 and a uniform thickness of t = 0.5 cm. Assume each cut-out is a rectangular plate and the foam acts as a rigid body. m³ Plate A has a length 14 = 34 cm and width w₁ = 8 cm. Plate B has a length 13 = 8.5 cm and width wB = 30 cm. Plate C is identical to plate D, and has a length lc = 15 cm and width wc = 5 cm. Plate C and D are attached to plate B such that their centers line up. Ip = 0.00758 x (kg) - m²
This exercise is part of a series of problems aimed at modeling a situation by progressively refining our model to take into account more and more parameters. This progressive approach is very close to whatwhat do professional scientists do! contextWe want to lower a suspended load in a controlled way, so that it hits the ground with a speed whose modulus is not too great. To slow down the descent, we added a resort behind the mass (A), Lasuspended load (B) is connected by a rope passing through a pulley to another mass (A), which slides on a horizontal surface with friction.InformationThe masses of loads A and B are known.The mass of the rope itself is negligible (very small compared to the loads).The pulley has negligible mass and can rotate without friction.Load B is initially stationary and is at a known height h.The surface on which mass A is placed is horizontal.There is friction under mass A: the kinetic friction coefficient u, is known.The rope attached to mass A is perfectly…
An engineer is to design a human powered submarine for a design competition. The overall length of the prototype submarine is 2.24 m and its engineer designers hope that it can travel fully submerged through water at 0.560 m/s. The water is freshwater (a lake) at 7-15°C (p=999.1 kg/m3 and u= 1.138 ×103 kg/m-st. The design team builds a one-eighth scale model to test in their university's wind tunnel. The air in the wind tunnel is at 25°C (p= 1.180 kg/m3 and u = 1.849 ×10-5 kg/m-s) and at one standard atmosphere pressure. At what air speed do they need to run the wind tunnel in order to achieve similarity?