
2.) Calculate the Radius of the spinning mass based on the following data: 1.6 14 12...
Question: Part A) A mass of 0.134 ± 0.005 kg, set at the radius 9.5 ± 0.1 cm, undergoes uniform circular motion with the angular velocity 8.6 ± 0.2 rad/s. What is the centripetal force acting on the mass? Part B) A mass of 0.133 ± 0.005 kg, set at the radius 7.9 ± 0.3 cm, undergoes uniform circular motion with the angular velocity 14 ± 0.4 rad/s. What is the uncertainty in the centripetal force acting on the mass?
5. A uniform circular wheel (I-M R) with radius, R=1.0 m and mass, M-50.0 kg is spinning at 120 rev/min. At a particular moment of time (that we denote t-0) the wheel is subjected to a frictional force F=20.0 N applied tangentially at its rim. (a) The magnitude of the angular velocity of the wheel (in rad/s) after t=25 s is (b) The number of revolutions done by the wheel after 10 s
Show all work. Rate will be given.
A 1.6 m long rod has mass 7.2 kg. If the rotation axis is located at one end of the rod, then find its moment of inertia. 18. a. 6.567 kg.m2 7.454 kg·m 2 6.618 kg㎡ d. 6.350 kg.m2 e. 6.144 kg.m2 f. 5.210kg-m A 220 kg disk (with uniform density) is shown below. Its rotation axis is through its center. The applied force: and F2 are 27 N and 31_N, respectively. If...
2. A spring with constant 1.46 N/m has an unknown mass attached to it. It is pulled a set distance and released from rest. The resulting graph for position of the unknown mass as a function of time is shown below. Oscillating Mass-Spring System 1 position (m) 0.8 0.6 04 02 0 -0.2 5 -0.4 -0.8 times) a) What is the frequency? (1 point) b) What is the amplitude? (1 point) c) What is the angular frequency? (1 points) d)...
2. A rigid sphere with mass 20 Kg and radius 0.6 m is free to rotate around a fixed axis passing through its center (I = 2/5 mR2). The sphere is initially at rest. A force of 4 N is applied at the edge (or equator) of the sphere, tangent to the sphere and perpendicular to the sphere radius, generating a constant torque for 3 s. (i) Calculate the magnitude of the angular acceleration of the sphere. (ii) Calculate the...
The mass of the cart is 0.365 kg. The rest of the data can be obtained from the graph above. All answers below must be correct to 3 significant figures. Units are required if not stated. What the final speed of the cart predicted by the work done by the rubber band, assuming that friction negligible? Vpred What the percent difference between between the predicted and measured final speed, expressed as a percent of the measured speed? Percent difference between...
z .09 .08 .07
.06 .05 .04 .03
.02 .01 .00 z
-3.4 0.0002 0.0003
0.0003 0.0003 0.0003
0.0003 0.0003 0.0003
0.0003 0.0003 -3.4
-3.3 0.0003 0.0004
0.0004 0.0004 0.0004
0.0004 0.0004 0.0005
0.0005 0.0005 -3.3
-3.2 0.0005 0.0005
0.0005 0.0006 0.0006
0.0006 0.0006 0.0006
0.0007 0.0007 -3.2
-3.1 0.0007 0.0007
0.0008 0.0008 0.0008
0.0008 0.0009 0.0009
0.0009 0.0010 -3.1
-3.0 0.0010 0.0010
0.0011 0.0011 0.0011
0.0012 0.0012 0.0013
0.0013 0.0013 -3.0
-2.9 0.0014 0.0014
0.0015 0.0015 0.0016
0.0016 0.0017 ...
Consider the hypothesis statement shown below using a = 0.10 and the data to the right from two independent samples. HO: H1 - H220 H1: 1-12 0 a) Calculate the appropriate test statistic and interpret the result. b) Calculate the p-value and interpret the result. Click here to view page 1 of the standard normal table. Click here to view page 2 of the standard normal table. X = 114 X2 = 127 6 = 36 02 = 40 n...
Suppose a random sample of size 15 is taken from a normal population with mean 25 and standard deviation 5; and a second, independent random sample of size 21 is taken from a normal population with mean 10 and standard deviation 4. Find the probability P(X- X2 2 17). (Use Appendix Table 3. Give your answer to four decimal places.) p(7. - 12 2 17) = 1.282 Incorrect Table In Standard Normal Distribution Cumulative Probabilities Let 2 be a standard...
Find the indicated z-scores shown in the graph Click to view page 2 of the table 0.0212 0.0212 The z-scores are (Use a comma to separate answers as needed. Round to two decimal places as needed) We were unable to transcribe this imagei Standard Normal Table (Page 1) z 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0.00 -3.4 0.0002 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 0.0003 -3.3 0.0003 0.0004 0.0004 0.0004 0.0004 0.0004 00004 0.0005 0.0005...