Q5) Determine the mass moment of inertia of copper balls (Density of copper is 8940 kg / m³) used in ball bearings that has a diameter of 30 mm. Express your answers in both kg. m? and kg . mm?.
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- 1. In calibrating a 10-mL pipet, a measured volume of water was transferred to a tared flask and weighed, yielding a mass of 9.9814 g. (a) Calculate, with and without correcting for buoyancy, the volume of water delivered by the pipet. Assume that the density of water is 0.99707 g/cm3 and that the density of the weights is 8.40 g/cm3. (b) What are the absolute and relative errors introduced by failing to account for the effect of buoyancy? Is this a significant source of determinate error for the calibration of a pipet? Explain. 2. Repeat the questions in problem 1 for the case when a mass of 0.2500 g is measured for a solid that has a density of 2.50 g/cm3. 3. Is the failure to correct for buoyancy a constant or proportional source of determinate error?Suppose a liquid has a specific gravity of 6.28. If the measured pressure at the bottom of the tank in which it is stored is 83.58 psi, what is the height of the liquid in feet. answers need to be computed to two decimal places ; examples 6.45Find how far an airplane will move in landing, if in t seconds after touching the ground its speed in feet per second is given by the equation. v= 180 – 18t. (hint: take v=0, C=0 ).
- Answers are a) (25/64) mr22 b) (25/32) mr22 Please show solution that involves mass moment of inertia and NOT area moment of inertia.Determine the magnitude of velocity of the ball (m/s) when t = 1.45 seconds.A rectangular tank 5m long, 2m wide and 2 m high is filled with water to a depth of 1.5m. It is mounted on a truck and accelerated along its length. If acceleration, a = 4m/s2, how much water will be spilled out? Do not write any unit in your answer, use 3 decimal places. Unit of Ans is m3
- Compute the volume in cubic ft of a sphere with a 9.2" diameter.The step pulleys shown in the figure below are connected by a crossed belt. If the angular acceleration of C is 2 rad/s^2, what time is required for A to travel 180ft from rest? Through what distance will D move while A is moving 240ft/s? Answer for tA should be 6.71 sec and SD should be 180 ftA frame shown in the figure consists of a horizontal rigid bar that is supported by two concrete columns. The temperature of system is increased by ΔT= 90 °C. Assume α1 = 7.5 x10-6/°C, α2 = 13 x10-6/°C, a = 290 mm, and L = 270 mm Determine the angle of rotation if the temperature of system is increased by ΔT? In micro rad
- The position of a particle is defined by s=6t²-8+40cosπ where s and t are expressed in inches and seconds respectively. Determine the position,velocity and acceleration when t=6 secondsAn object has a specific weight of 3.23 KN/m3 Compute the mass if the volume is 0.001 m3 (3 decimal places) Do not write the unit. You will only input the numerical answer in the space provided. Unit. of the Correct Answer: kg Decimal Places required in the final answer: 3As shown is a cylinder (?=0.8 m,) that is hinged at O. Compute the FR and ϴx. Analyze 1 m length. Use yw = 9.81 ?? m3. Use 2 decimal places in every solved value, however use the whole value for the computation of volume.