Describe how torque and equilibrium determine the mass of an unknown object.
Describe how torque and equilibrium determine the mass of an unknown object.
Define the method of moments. How to use it to determine the mass of unknown object?
Prelab 12 Static Equilibrium 2 1. What are the two requirements for an extended object to be in equilibrium? a) b) 2. Refer to the experiment: Does the tension of the string cause a clockwise or counterclockwise torque about the pivot point? Is it negative or positive? a) b) 3. Does the hanging mass cause cw or ccw torque about the pivot? Negative or positive? a) b) 4. Where does the weight of the boom act? (the net torque from...
Describe a situation in which there is a net external torque on an object but it’s angular velocity both magnitude and direction is constant?
If an object is in static equilibrium, there must be no net external torque: A) Group of answer choices about an axis located at the edge of the object. B)about an axis located at the object's center of gravity. C)about an axis located beneath the object's center of gravity. D) about any axis.
1) Use equilibrium to solve for the unknown torque at Point C of the problem in the Appendix. Sum moments about the X-axis and given that the shaft is in equilibrium, determine the torque that must be applied at Point C. You can assume that the shaft is not connected to any other features although in a real-world application there would need to be bearing that keep the shaft from ‘wandering off.’ But note that there are no ‘forces’ applied...
An object pivoting about its center of mass is Free of net torque Motionless Always in motion Experiencing a torque about its center of mass.
The mobile in the figure (Figure 1) is in equilibrium. Object B has mass of 0.800 kg . 1) Determine the mass of the object A. (Neglect the weights of the crossbars.) 2)Determine the mass of the object C. (Neglect the weights of the crossbars.) 3) Determine the mass of the object D. (Neglect the weights of the crossbars.) 30.00 cm 7.50 cm 15.00 cm 5.00 cm 17.50 cm 5.00 cm
13. How would you determine the density of an iregular-shaped unknown object if a)it siks in water and (b)it floats in water? List all the steps and explain the reasoning behind them
In the specific heat capacity experiment, the unknown object has a mass of 0.073 kg and was cooled to -9 C. Then, it was placed in a calorimeter (mcalorimeter = 0.11 kg) that contain water (mwarter = 0.23 kg) at a temperature of 26 C. After 5 minutes the temperature dropped to 22.4 C. Determine the specific heat capacity of the unknown object. (cwater = 4186 J/kg. C and ccalorimeter = 900 J/kg. C)
For equilibrium the clockwise rotation or torque must equal the counterclockwise! If this were not true the object would start spinning. The torque of W about X is just W * Lw and the torque of T2 about X is T2 * L2. So for rotational equilibrium W * Lw = T2 * L2. The distances Lw and L2 are called the lever anus of the forces. 1. Using the preceding picture assume that the stick is a meter stick,...