Question

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: 700 g

Weight 1: 1.3 N. This weight is placed at the 24-cm mark on the ruler.

Weight 2: 6 N. This weight is placed at the 54-cm mark on the ruler.

We want to balance the ruler by placing a weight at the 93-cm mark.

What should the magnitude of this weight?

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: 3 N. This weight is placed at the 9-cm mark on the ruler.

Weight 2: 4 N. This weight is placed at the 53-cm mark on the ruler.

We want to balance the ruler by supporting it with a spring scale at the 5-cm mark.

What reading should we expect on the spring scale?

Homework Answers

Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
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: 800 g Two masses are placed on the ruler. You need to find where to place the third mass to balance it. Mass 1: 294 g. This mass is placed at the 23-cm mark on the ruler. Mass 2: 227 g. This mass is placed at the 69 cm mark...
A vertical scale on a spring balance reads from 0 to 245 N . The scale...
A vertical scale on a spring balance reads from 0 to 245 N . The scale has a length of 14.5 cm from the 0 to 245 N reading. A fish hanging from the bottom of the spring oscillates vertically at a frequency of 2.35 Hz. Ignoring the mass of the spring, what is the mass m of the fish?
Lever. We can make a lever by placing a bar on a pivot. Suppose the bar...
Lever. We can make a lever by placing a bar on a pivot. Suppose the bar is 5 meters long. A 20 kg kid and an 80 kg adult seat at two terminals of the bar individually. Initially, the bar is along horizontal direction. A. There are totally three forces exerted on the lever: the force exerted by the kid, the force exerted by the adult and the supporting force exerted at the pivot. What is the value of the...
First, launch the video below. You will be asked to use your knowledge of physics to...
First, launch the video below. You will be asked to use your knowledge of physics to predict the outcome of an experiment. Then, close the video window and answer the question at right. You can watch the video again at any point. http://media.pearsoncmg.com/aw/aw_0media_physics/vtd/video46.html Suppose we replace the mass in the video with one that is four times heavier. How far from the free end must we place the pivot to keep the meter stick in balance? 50 cm (in the...
You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 95...
You’ve been given the challenge of balancing a uniform, rigid meter-stick with mass M = 95 g on a pivot. Stacked on the 0-cm end of the meter stick are n identical coins, each with mass m = 4.3 g, so that the center of mass of the coins is directly over the end of the meter stick. The pivot point will be measured from the 0-cm end of the meter stick. Determine the distance da in cm if there...
Finding the Spring Constant We can describe an oscillating mass in terms of its position, velocity,...
Finding the Spring Constant We can describe an oscillating mass in terms of its position, velocity, and acceleration as a function of time. We can also describe the system from an energy perspective. In this experiment, you will measure the position and velocity as a function of time for an oscillating mass and spring system, and from those data, plot the kinetic and potential energies of the system. Energy is present in three forms for the mass and spring system....
2. A 100 cm rod is free to pivot about one end, and a 50 N...
2. A 100 cm rod is free to pivot about one end, and a 50 N force is applied at the other end at an angle 20 degree to the horizontal. (i) Calculate the lever arm of the rod. (ii) Calculate the torque about the pivot point. 3. Joe weighing 500 N sits 0.5 m to the left of center of the seesaw 2 m long. Liz sits at the end on the opposite side of a seesaw of mass...
Torque and Equilibrium You are in a class titled Introduction to Artistic Expression, and your final...
Torque and Equilibrium You are in a class titled Introduction to Artistic Expression, and your final project must be completed in class. You know that you will be given three objects and two boards to work with to create two separate displays. You also know that you must arrange the objects on the boards so they balance on a tiny pedestal. Once completed, one display will be a single object resting on a board balanced on top ofa pedestal; the...
Question #1 part A On a planet that is 6.00 times the mass of the Earth...
Question #1 part A On a planet that is 6.00 times the mass of the Earth and 3.00 times the radius of the Earth, the acceleration of gravity on the surface of that planet would be:                          A) 4.90 m/s2 B) 6.53 m/s2       C) 9.80 m/s2                             D) 13.9 m/s2                         E) 19.6 m/s2 Part B A plane performs acrobatic maneuvers in a vertical circle. The pilot passes head down the highest point of the trajectory and just then press the seat...
pendulum of mass m= 0.8 kg and length l=1 m is hanging from the ceiling. The...
pendulum of mass m= 0.8 kg and length l=1 m is hanging from the ceiling. The massless string of the pendulum is attached at point P. The bob of the pendulum is a uniform shell (very thin hollow sphere) of radius r=0.4 m, and the length l of the pendulum is measured from the center of the bob. A spring with spring constant k= 7 N/m is attached to the bob (center). The spring is relaxed when the bob is...