A 2in dia bolt is clamping sheets of the metal which are 8mm
thick.the total length...
A 2in dia bolt is clamping sheets of the metal which are 8mm
thick.the total length of the bolt is 12in. Calculate the length of
the total threaded portion as well as threaded portion inside.
Large thin metal sheets of length L are dipped in an
electroplating bath in the vertical position. Their average
temperature is initially cooler than the liquid in the bath. How
rapidly will they come up to bath temperature, Tb? Now please take
the time out to explain your answer in detail, as well as, list all
steps that led to this final answer.
Bolt Fastener Design:
Calculate the fastener and bolt stiffness and required length
for a M14x2 hex head bolt and nut used to assemble two 16mm steel
plates
If bolt thread length is normally distributed, what is the
probability that the thread length of a randomly selected bolt
is
(a) Within 1.3 SDs of its mean value?
(b) Farther than 1.5 SDs from its mean value?
(c) Between 1 and 2 SDs from its mean value?
You may need to use the appropriate table in the Appendix of
Tables to answer this question.
If bolt thread length is normally distributed, what is the
probability that the thread length of a randomly selected bolt is
(a) Within 1.3 SDs of its mean value?
(b) Farther than 2.1 SDs from its mean value?
(c) Between 1 and 2 SDs from its mean value?
Two parallel squared metal sheets (of 1 m length side) are
separated by 1 mm of vacuum. The sheets are connected to a dc
source with potential difference of 500V. What is the magnitude of
charges accumulated on the sheets upon connection to the source?To
solve this problem I needed to:
A. Use the equation E=V/d;
B. Calculate the Coulomb’s forces acting on the charges;
C. Figure out what a known device is represented by these
sheets;
D. Calculate the...
In a metal fabrication process, metal rods are produced to a
specified target length of 15 feet. Suppose that the lengths are
normally distributed. A quality control specialist collects a
random sample of 16 rods and finds the sample mean length to be
14.8 feet and a standard deviation of 0.65 feet. Based on this
information answer the following questions to determine if the
manufacturer is making rods too short.
a. Write the null and alternative hypotheses to test this...
In a metal fabrication process, metal rods are produced to a
specified target length of 15 feet (ft). Suppose that the lengths
are normally distributed. A quality control specialist collects a
random sample of 16 rods and finds the sample mean length to be
14.8 feet and a standard deviation of 0.65 feet. The 95%
confidence interval for the true mean length of rods produced by
this process is _______.
A.
14.454 to 15.146 ft
B.
14.345 to 15.255 ft...
In a metal fabrication process, metal rods are produced to a
specified target length of 15 feet. Suppose that the lengths are
normally distributed. A quality control specialist collects a
random sample of 16 rods and finds the sample mean length to be
14.8 feet and a standard deviation of 0.65 feet. Based on this
information answer the following questions to determine if the
manufacturer is making rods too short.In a metal fabrication
process, metal rods are produced to a...
Length of metal strips produced by a machine process are
normally distributed with a mean length of 50mm and a standard
deviation of 5mm.
Giving your answer as a decimal to 4 decimal places, find the
probability that the length of a randomly selected strip is
a)
Shorter than 47mm
b)
Longer than 58mm
c)
Between 48mm48mm and 56mm
A purely competitive nut and bolt manufacturer faces a market
price of $7.00, an average total cost of $7.50, an average variable
cost of $6.00, and a marginal cost of $6.75. Should this firm
expand output, contract output, or shut down in the short-run? Use
a graph to illustrate your answer, making sure to indicate these
price and cost values