Question

A bar of uniform cross section is 28.1 in long and weighs 61.2 lb. A weight of 67.3 lb is suspended from one end. The bar and

weight combination is to be suspended from a cable attached at the balance

point. How far (in) from the weight should the cable be attached, and what is the tension (lb) in the cable?

Answer #1

The coefficient of thermal conductivity of a bar of metal of
length L and uniform cross section A is expressed
as k = a + x, where a is a constant and
x is the distance from one end of the bar. Calculate the
rate of heat transfer H if the two ends are kept at
temperatures THand TL
respectively

In the figure, a uniform beam with a weight of 56.9 N and a
length of 3.75 m is hinged at its lower end, and a horizontal
force of magnitude 58.2 N acts at its upper end. The
beam is held vertical by a cable that makes angle θ =
20.8° with the ground and is attached to the beam at height
h = 2.04 m. What are (a) the tension in
the cable, (b) the x-component of the
force on...

One end of a uniform ℓ = 3.40-m-long rod of weight w is
supported by a cable at an angle of
θ = 37°
with the rod. The other end rests against a wall, where it is
held by friction (see figure). The coefficient of static friction
between the wall and the rod is
μs = 0.540.
Determine the minimum distance x from point A
at which an additional weight w (the same as the weight of
the rod) can...

14 of 15
Constants
You are a summer intern for an architectural firm. An
8.00-m-long uniform steel rod is to be attached to a wall by a
frictionless hinge at one end. The rod is to be held at 24.0 ∘
below the horizontal by a light cable that is attached to the end
of the rod opposite the hinge. The cable makes an angle of 38.0 ∘
with the rod and is attached to the wall at a point...

One end of a uniform 3.60-m-long rod of weight
Fg is supported by a cable at an angle of
θ = 37° with the rod. The other end rests against the
wall, where it is held by friction as shown in the figure below.
The coefficient of static friction between the wall and the rod is
μs = 0.590. Determine the minimum distance
x from point A at which an additional object,
also with the same weight Fg, can be...

9. An 8.0m long uniform boom weighing 2400N is anchored to the
ground at one end and sticks up at a 45°angle toward the right. It
is held in this position by a cable rising at 30°above horizontal
and extending toward the left from the top of the boom. If a 1000N
weight hangs from the top of this boom what is the tension in each
cable. You must draw the free body diagram to receive full
credit.

A bar of length L and uniform density is held horizontally
against a wall by a pivot at one end and a rope of tension T which
pulls up and to the left making an angle \theta with the vertical
wall. The rope is attached to the bar at a distance l = \frac{1}{3}
L from the wall. A mass M is resting at the end of the bar.If the
bar has total mass 2.6kg, the mass M=2.6kg, and the...

A uniform, 254-N rod that is 1.89 m long carries a 225-N weight
at its right end and an unknown weight W toward the left end (see
the figure (Figure 1)). When W is placed 42.0 cm from the left end
of the rod, the system just balances horizontally when the fulcrum
is located 69.2 cm from the right end.
A) Find W.
B) If W is now moved 29.3 cm to the right, how far must the
fulcrum be...

(1 point) A trough is 6 feet long and 1 foot high. The vertical
cross-section of the trough parallel to an end is shaped like the
graph of ?=?6y=x6 from ?=−1x=−1 to ?=1x=1 . The trough is full of
water. Find the amount of work in foot-pounds required to empty the
trough by pumping the water over the top. Note: The weight of water
is 6262 pounds per cubic foot.

A
man with mass 80 kg begins walking out to the end of a 5 m long
beam that is supported by a hinge attached to a building at one end
and a cable that makes a 30° to the horizontal at the other end.
This cable can withstand 2000N of tension until it breaks.
a) How far can the man walk before the cable breaks?
b) Just when the cable snaps, what is the angular velocity?
Assume the only...

ADVERTISEMENT

Get Answers For Free

Most questions answered within 1 hours.

ADVERTISEMENT

asked 10 minutes ago

asked 14 minutes ago

asked 19 minutes ago

asked 21 minutes ago

asked 32 minutes ago

asked 32 minutes ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago

asked 1 hour ago