Question
In: Physics
(a) Suppose a meter stick made of steel and one made of invar are the same...
(a) Suppose a meter stick made of steel and one made of invar are the same length at 0°C. What is their difference in length at 45.0°C? The coefficient of thermal expansion is
12 ✕ 10−6/°C for steel and 0.9 ✕ 10−6/°C for invar.
(b) Repeat the calculation for two 38.5-m-long surveyor's tapes.
Solutions
genius_generous answered 1 year agoRelated Solutions
(a) Suppose a meter stick made of steel and one made of invar are the same...
(a) Suppose a meter stick made of steel and one made of invar
are the same length at 0°C. What is their difference in length at
21.5°C? The coefficient of thermal expansion is 12 ✕ 10−6/°C for
steel and 0.9 ✕ 10−6/°C for invar.
(b) Repeat the calculation for two 20.5-m-long surveyor's
tapes.
A meter stick (?= 1.00 m, ?= 100 g) is made into a physical pendulum by...
A meter stick (?= 1.00 m, ?= 100 g) is made into a physical
pendulum by drilling a small hole at a distance ?from the center of
mass to become the pivot point. Find the distance ?, if the
pendulum is to have a period of ?= 3.00 s.
A.3.79 cm
B.14.6 cm
C.20.4 cm
D.40.9 cm
E.It cannot be done.
The center of gravity of the meter stick is 49 cm. mass of meter stick 50...
The center of gravity of the meter stick is 49 cm. mass of meter
stick 50 g . mass of hanger #1 =5 g. mass of hanger #2 = 5 g.
1.Place the fulcrum at 51 cm. Attach a 200 g mass, plus hanger
#1, at 17 cm on the meter stick and calculate where to attach a 200
g mass, plus hanger #2, to balance it.
2.Balance the stick with the fulcrum at its center of gravity.
Attach a...
You attach a meter stick to an oak tree, such that the top of the meter...
You attach a meter stick to an oak tree, such that the top of the meter stick is 2.47 meters above the ground. Later, an acorn falls from somewhere higher up in the tree. If the acorn takes 0.271 seconds to pass the length of the meter stick, how high above the ground was the acorn before it fell, assuming that the acorn did not run into any branches or leaves on the way down? acorn's height: _______m
•• A meter stick is moving with speed relative to a frame S. (a) What is...
•• A meter stick is moving with speed relative to a frame S. (a)
What is the stick’s length, as measured by observers in S, if the
stick is parallel to its velocity v? (b) What if the stick is
perpendicular to v? (c)What if the stick is at to v, as seen in the
stick’s rest frame? [HINT: You can imagine that the meterstick is
the hypotenuse of a 30–60–90 triangle of plywood.] (d) What if the
stick is...
A) During a lab, a meter stick was used at static equilibrium (the net torque was...
A) During a lab, a meter stick was used at static equilibrium
(the net torque was stationary and non-rotating objects are zero)
to determine the masses or unknown distances for objects suspended
from the meter stick. The total forces exerted at each location
along the meter stick were factored in to find the total mass of
the slotted masses, the mass hanger, and the clip that was attached
to the meter stick. The one mass that did not have to...
A 0.13 kg meter stick is held perpendicular to a vertical wall by a 2.6 m...
A
0.13 kg meter stick is held perpendicular to a vertical wall by a
2.6 m string going from the wall to the far end of the stick.
A. Find the tension of the string
B. Find the tension in a 2.0 string.
A meter stick on a horizontal frictionless table top is pivoted at the 80-cm mark. A...
A meter stick on a horizontal frictionless table top is pivoted
at the 80-cm mark. A force F1 = 5 N is applied perpendicularly to
the end of the stick at 0 cm, as shown. A second force F2 (not
shown) is applied at the 100-cm end of the stick. The stick does
not rotate.
a) What is the torque (magnitude and sign) about the pivot from
F1?
b) Explain why the torque from the pivot about itself is
zero....
A meter stick has the pivot placed at the 28 cm mark. A mass of 156...
A meter stick has the pivot placed at the 28 cm mark. A mass of
156 g is placed at the 3 cm mark, and another mass of 94 g is
placed at the 61 cm mark. If these masses create equilibrium what
is the mass of the meter stick in grams? Round your answer such
that it has no decimal.
A meter stick has a mass of 0.12 kg and balances at its center. When a...
A meter stick has a mass of 0.12 kg and balances at its center.
When a small chain is suspended from one end, the balance point
moves 29.0 cm toward the end with the chain. Determine the mass of
the chain.
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