Homework Answers
As the plank is in equilibrium, net torque and net force acting on the plank must be zero.
Apply net torque about left end = 0
T*L - W*x - Wp*(L/2) = 0
T*L = W*x + Wp*(L/2)
T = W*x/L + Wp/2
= 320*2.4/4 + 260/2
= 322 N <<<<<<<<----------------------Answer
Add Answer to:
Cant figure this out, help!
Jenny is 320 N
1. Jenny has made a drawbridge for...
Rope Support In the figure, a uniform plank of length L - 6 m and weight...
Rope Support In the figure, a uniform plank of length L - 6 m and weight W, 400 N is supported in a horizontal position by a support on the left end and a vertical rope on the right end. A box with a weight 1 30 N is placed on the plank at a distance x = 2.4 m from the left end of the plank. The tension in the rope is T and the support exerts a force...
The mechanism shown in the figure (Figure 1) is used to raise a crate of supplies...
The mechanism shown in the figure (Figure 1) is used to raise a crate of supplies from a ship's hold. The crate has total mass 52 kg A rope is wrapped around a wooden cylinder that turns on a metal axle. The cylinder has radius 0.20 m and a moment of inertia I = 2.0 kg middot m^2 about the axle. The crate is suspended from the free end of the rope. One end of the axle pivots on frictionless...
Need help with part C. Thank you! This is the figure above. However, it has different...
Need help with part C. Thank you!
This is the figure above. However, it has different values than
the homework question above.
PRACTICE IT Use the worked example above to help you solve this problem. A woman of mass m = 53.6 kg sits on the left end of a seesaw-a plank of length L = 4.39 m, pivoted in the middle as shown in the figure. (a) First compute the torques on the seesaw about an axis that passes...
< Homework 10 Question 10 The mechanism shown in the figure (Figure 1)is used to raise...
< Homework 10 Question 10 The mechanism shown in the figure (Figure 1)is used to raise a crate of supplies from a ship's hold. The crate has total mass 56 kg A rope is wrapped around a wooden cylinder that turns on a metal axle. The cylinder has radius 0.34 m and a moment of inertia I = 2.5 kg. m2 about the axle. The crate is suspended from the free end of the rope. One end of the axle...
1. (20 Marks) An object has an L-shape and can be treated as 2 beams fixed...
1. (20 Marks) An object has an L-shape and can be treated as 2 beams fixed together at right angle. Beam 1 (B) has a weight wi = 180 N and a length Li-2.00 m and Beam 2 (B) has a weight w2 90.0 N and a length L2- 1.00 m. This object is hinged by its corner O to the ground via a hinge that allows it to rotate clockwise counter clockwise, when possible. B2 rope B2 0 Figure...
A 3.00-m-long, 140-N, uniform rod at the zoo is held in a horizontal position by two ropes at its ends in (Figure 1)
A 3.00-m-long, 140-N, uniform rod at the zoo is held in a horizontal position by two ropes at its ends in (Figure 1). The left rope makes an angle of 150° with the rod and the right rope makes an angle 9 with the horizontal. A 90- N howler monkey (Alouatta seniculus) hangs motionless 0.50 m from the right end of the rod as he carefully. Make a free-body diagram of the rod. Draw the vectors starting at the black dots. The...
Cant figure out question 1 and 3. Please help! Gary Stevens and Mary James are production...
Cant figure out question 1 and 3. Please help!
Gary Stevens and Mary James are production managers in the Consumer Electronics Division of General Electronics Company, which has several dozen plants scattered in locations throughout the world. Mary manages the plant located in Des Moines, Iowa, while Gary manages the plant in El Segundo, California. Production managers are paid a salary and get an additional bonus equal to 10% of their base salary if the entire division meets or exceeds...
Question 1: 1. Figure out what the following MATLAB code does (Notice that R n =...
Question 1: 1. Figure out what the following MATLAB code does (Notice that R n = 500 for jay - 1:4 ifjoy > 1;oldtime = time; end M rand(n); t cputime; forrep -1:5 R chol(A): en time = cputime-t; if jay > 1; ratio - time/oldtime, end en If you put these instructions into a file named, say, zap.m, you can run the program by typing zap from the MATLAB command line. The functions randn, cputime, and chol are built-in...
stion 1: Figure out what the following MATLAB code does (Notice that R = LT) n=500:...
stion 1: Figure out what the following MATLAB code does (Notice that R = LT) n=500: for jay- 1:4 if jay > 1; oldtime-time; end M = rand(n) t = cputime; for rep 1: R chol(A); end time-cputime-t if jay > 1; ratio = time/oldtime, end enc If you put these instructions into a file named, say, zap.m, you can run the program by typing zap from the MATLAB command line. The functions randn, cputime, and chol are built-in MATLAB...
Just need help filling in the blanks! Thank you. Part 1: Three Levers In this part,...
Just need help filling in the blanks! Thank you.
Part 1: Three Levers In this part, you will set up a lever in three different configurations. First Lever The first is straightforward: set up the plastic ruler so that it pivots about its center. Apply two forces (resulting in two torques) to it as shown. Torque 1: Torque 2: Place a hanger (20 grams) in the first hole to the left of center and add 200 grams to it. Place...
Rope Support In the figure, a uniform plank of length L - 6 m and weight W, 400 N is supported in a horizontal position by a support on the left end and a vertical rope on the right end. A box with a weight 1 30 N is placed on the plank at a distance x = 2.4 m from the left end of the plank. The tension in the rope is T and the support exerts a force...
The mechanism shown in the figure (Figure 1) is used to raise a crate of supplies from a ship's hold. The crate has total mass 52 kg A rope is wrapped around a wooden cylinder that turns on a metal axle. The cylinder has radius 0.20 m and a moment of inertia I = 2.0 kg middot m^2 about the axle. The crate is suspended from the free end of the rope. One end of the axle pivots on frictionless...
Need help with part C. Thank you!
This is the figure above. However, it has different values than
the homework question above.
PRACTICE IT Use the worked example above to help you solve this problem. A woman of mass m = 53.6 kg sits on the left end of a seesaw-a plank of length L = 4.39 m, pivoted in the middle as shown in the figure. (a) First compute the torques on the seesaw about an axis that passes...
< Homework 10 Question 10 The mechanism shown in the figure (Figure 1)is used to raise a crate of supplies from a ship's hold. The crate has total mass 56 kg A rope is wrapped around a wooden cylinder that turns on a metal axle. The cylinder has radius 0.34 m and a moment of inertia I = 2.5 kg. m2 about the axle. The crate is suspended from the free end of the rope. One end of the axle...
1. (20 Marks) An object has an L-shape and can be treated as 2 beams fixed together at right angle. Beam 1 (B) has a weight wi = 180 N and a length Li-2.00 m and Beam 2 (B) has a weight w2 90.0 N and a length L2- 1.00 m. This object is hinged by its corner O to the ground via a hinge that allows it to rotate clockwise counter clockwise, when possible. B2 rope B2 0 Figure...
Cant figure out question 1 and 3. Please help!
Gary Stevens and Mary James are production managers in the Consumer Electronics Division of General Electronics Company, which has several dozen plants scattered in locations throughout the world. Mary manages the plant located in Des Moines, Iowa, while Gary manages the plant in El Segundo, California. Production managers are paid a salary and get an additional bonus equal to 10% of their base salary if the entire division meets or exceeds...
Question 1: 1. Figure out what the following MATLAB code does (Notice that R n = 500 for jay - 1:4 ifjoy > 1;oldtime = time; end M rand(n); t cputime; forrep -1:5 R chol(A): en time = cputime-t; if jay > 1; ratio - time/oldtime, end en If you put these instructions into a file named, say, zap.m, you can run the program by typing zap from the MATLAB command line. The functions randn, cputime, and chol are built-in...
stion 1: Figure out what the following MATLAB code does (Notice that R = LT) n=500: for jay- 1:4 if jay > 1; oldtime-time; end M = rand(n) t = cputime; for rep 1: R chol(A); end time-cputime-t if jay > 1; ratio = time/oldtime, end enc If you put these instructions into a file named, say, zap.m, you can run the program by typing zap from the MATLAB command line. The functions randn, cputime, and chol are built-in MATLAB...
Just need help filling in the blanks! Thank you.
Part 1: Three Levers In this part, you will set up a lever in three different configurations. First Lever The first is straightforward: set up the plastic ruler so that it pivots about its center. Apply two forces (resulting in two torques) to it as shown. Torque 1: Torque 2: Place a hanger (20 grams) in the first hole to the left of center and add 200 grams to it. Place...
Most questions answered within 3 hours.
-
A speeding car is traveling along a straight road with a
constant speed of 100 km/hour....
asked 14 minutes ago -
When 60.1 gg of calcium is reacted with nitrogen gas, 31.7 gg of
calcium nitride is...
asked 19 minutes ago -
The random variable X is exponentially distributed, where X
represents the time it takes for a...
asked 34 minutes ago -
a) Write a verilog module for 1:4 Demultiplexer using verilog
primitives.
b) Design 1-to-4 DEMUX using...
asked 29 minutes ago -
MATLAB
write a MATLAB function (1) output a third-order polynomial
function with the coefficients as the...
asked 41 minutes ago -
A z-score
communicates a raw score’s "relative standing"
under the normal curve in relation to:
asked 50 minutes ago -
An object is vibrating on a spring with the following equation
of motion:
?=(30 ??)cos((2?)/(160)?)
a)...
asked 49 minutes ago -
Vulcan Flyovers offers scenic overflights of Mount St. Helens,
the volcano in Washington State that explosively...
asked 52 minutes ago -
If organizations do not adapt fast enough and move incrementally
from the twentieth-century model to the...
asked 53 minutes ago -
A helium balloon with 2.5L of gas has a gauge pressure of 10,000
Pa. The balloon...
asked 57 minutes ago -
What is responsible for Jupiter's enormous magnetic field?
asked 1 hour ago -
At the end of the year, a company offered to buy 5,000 units of
a product...
asked 1 hour ago