When the pivot point of a balance is not at the center of mass of the...
When the pivot point of a balance is not at the center of mass of the balance, how is the net torque on the balance calculated?
When a force is applied directly to the pivot point of a balance, what is the torque due to that force?
Homework Answers
When the pivot point of a balance is not at the centre of mass of the balance then torque is calculated as follows
Force× perpendicular distance from pivot.
When the force is applied directly to the pivot point of the balance then the torque is zero because distance is zero from pivot.
Add Answer to:
When the pivot point of a balance is not at the center
of mass of the...
Even when the head is held erect, as in the figure below, its center of mass...
Even when the head is held erect, as in the figure below, its center of mass is not directly over the principal point of support (the atlanto-occipital joint). The muscles in the back of the neck must therefore exert a force to keep it erect. That is why your head falls forward when you fall asleep in class. If the perpendicular distance between the line of action for the weight of the head and the pivot point is w. -...
Pivot point Consider the figure Center of mass where L is the length of the e<15...
Pivot point Consider the figure Center of mass where L is the length of the e<15 Meter stick I meter stick and h is the distance between the pivot point and center of mass of the system. According to the formula T 27T whrI is the moment of mgh inertia about the pivot point. If the parallel axis theorem is used, which of the following equations will best describe an estimate of the moment of inertia of the system? 급...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k is attached at one end to a frictionless pivot and is free to rotate about the pivot in the vertical plane as in the figure. The rod is released from rest in the horizontal position. What are the initial angular acceleration of the rod and the initial translational acceleration of its right end Pivot SOLVE IT Mg A rod is free to rotate around...
If the distance from the pivot point to the point where the force applied is doubled,...
If the distance from the pivot point to the point where the force applied is doubled, the torque is: a. Decreases by a factor of two b. Remains the same c. Increased by a factor of two
Torques and Center of Mass. The Experiment: In this experiment, you balance a meter stick, to...
Torques and Center of Mass. The
Experiment:
In this experiment, you balance a meter stick, to balance the
meter stick, attach masses at positions until the system is in
equilibrium.
The meter stick acts as if all its mass was concentrated at its
center of mass. With the fulcrum at the center of mass, r (the
distance from the axis of rotation to the place where the force is
applied) is 0, so there’s no torque due to the meter...
A balance and torque experiment is conducted with a balanced ruler (that is, the pivot point is in the middle). Length of the ruler. 1 m Weight of the ruler 8 N te of 1.00 Mass 1: 148 g. This mas...
A balance and torque experiment is conducted with a balanced ruler (that is, the pivot point is in the middle). Length of the ruler. 1 m Weight of the ruler 8 N te of 1.00 Mass 1: 148 g. This mass is placed at the 44-cm mark on the ruler. What should be the magnitude of the second mass? Answer estion The second mass is to be placed at the 85-cm mark on the ruler. Check
A balance and torque...
A balance and torque experiment is conducted with a balanced ruler (that is, the pivot point...
A balance and torque experiment is conducted with a balanced ruler (that is, the pivot point is in the middle). Length of the ruler: 1 m Mass of the ruler: 650 g Weight 1: 4 N. This weight is placed at the 15-cm mark on the ruler. Weight 2: 3 N. This weight is placed at the 58-cm mark on the ruler. We want to balance the ruler by supporting it with a spring scale at the 20-cm mark. What...
429-DU- 9. 13). Even when the head is held upright as shown, its I center of...
429-DU- 9. 13). Even when the head is held upright as shown, its I center of mass is not directly over the principal of support is The muscles at the neck need to exert a force to keep the headh erect. Calculate the force exected by these muscles using the info in the fique ® What is the force exected by the pivot on the head? Consider Jadding s.ON of weight to the head, How much does it affect the...
A force of 40 N is applied perpendicularly 30 cm from the pivot point. What is...
A force of 40 N is applied perpendicularly 30 cm from the pivot point. What is the torque? a. 1.2 N-m b. 12 N-m c. 120 N-m d. 1200 N-m
Name: Date: Balance Lab (Part 1) Explore the "Balance Lab” section of the Balancing Act simulation....
Name: Date: Balance Lab (Part 1) Explore the "Balance Lab” section of the Balancing Act simulation. 4. Create a situation in which the beam is balanced (without the supports) while there is a single collection of bricks on one side of the pivot and two different collections of bricks on the other side (3 collections of bricks in total in the experiment). Draw the situation on the figure below while making sure to label the masses and the distance to...
Even when the head is held erect, as in the figure below, its center of mass is not directly over the principal point of support (the atlanto-occipital joint). The muscles in the back of the neck must therefore exert a force to keep it erect. That is why your head falls forward when you fall asleep in class. If the perpendicular distance between the line of action for the weight of the head and the pivot point is w. -...
Pivot point Consider the figure Center of mass where L is the length of the e<15 Meter stick I meter stick and h is the distance between the pivot point and center of mass of the system. According to the formula T 27T whrI is the moment of mgh inertia about the pivot point. If the parallel axis theorem is used, which of the following equations will best describe an estimate of the moment of inertia of the system? 급...
Example 10.8 Rotating Rod A uniform rod of length L 1.6 m and mass 2.8 k is attached at one end to a frictionless pivot and is free to rotate about the pivot in the vertical plane as in the figure. The rod is released from rest in the horizontal position. What are the initial angular acceleration of the rod and the initial translational acceleration of its right end Pivot SOLVE IT Mg A rod is free to rotate around...
Torques and Center of Mass. The
Experiment:
In this experiment, you balance a meter stick, to balance the
meter stick, attach masses at positions until the system is in
equilibrium.
The meter stick acts as if all its mass was concentrated at its
center of mass. With the fulcrum at the center of mass, r (the
distance from the axis of rotation to the place where the force is
applied) is 0, so there’s no torque due to the meter...
A balance and torque experiment is conducted with a balanced ruler (that is, the pivot point is in the middle). Length of the ruler. 1 m Weight of the ruler 8 N te of 1.00 Mass 1: 148 g. This mass is placed at the 44-cm mark on the ruler. What should be the magnitude of the second mass? Answer estion The second mass is to be placed at the 85-cm mark on the ruler. Check
A balance and torque...
429-DU- 9. 13). Even when the head is held upright as shown, its I center of mass is not directly over the principal of support is The muscles at the neck need to exert a force to keep the headh erect. Calculate the force exected by these muscles using the info in the fique ® What is the force exected by the pivot on the head? Consider Jadding s.ON of weight to the head, How much does it affect the...
Name: Date: Balance Lab (Part 1) Explore the "Balance Lab” section of the Balancing Act simulation. 4. Create a situation in which the beam is balanced (without the supports) while there is a single collection of bricks on one side of the pivot and two different collections of bricks on the other side (3 collections of bricks in total in the experiment). Draw the situation on the figure below while making sure to label the masses and the distance to...
Most questions answered within 3 hours.
-
An explosion breaks a 20.0-kg object into three parts. The
object is initially moving at a...
asked 38 minutes ago -
Calculate the approximate number of residues of Rubisco, which
is involved in carbon fixation in plants,...
asked 1 hour ago -
Other decisions about scientific claims can have a much broader
impact.ENERGYarrow-10x10.png, environment, health, security - all...
asked 2 hours ago -
I need to write a research paper and work cited about this
topic: The United States...
asked 2 hours ago -
Hello! I was wondering if I could have some help?
If the vapor pressure of carvone...
asked 3 hours ago -
An economist wants to estimate the mean per capita income (in
thousands of dollars) for a...
asked 3 hours ago -
What would be the input/output characteristic of a circuit
obtained by putting two of your 2's-complementers...
asked 3 hours ago -
In Drosophila, the transition from the syncytial blastoderm
stage to the cellular blastoderm stage is a...
asked 4 hours ago -
Project management question:
Name 3 different types of resources (hint: humans are one
type)
asked 4 hours ago -
Consider the following reaction: C 2H 2( g) + 2H 2( g) C 2H 6(
g)...
asked 4 hours ago -
Consider a 1.0 L buffer containing 0.092 mol L-1 HCOOH and 0.100
mol L-1 HCOO-. What...
asked 4 hours ago -
Koch Realty has owned a vacant land with a FMV of
$775,000 and an adjusted basis...
asked 4 hours ago