y = stress/strain = (F/A)/(x/L)
x/L = F/AY
x = FL/AY
x = [(6.8*10^-4)*(73.8*10^-2)]/[1.0*10^-3*3*10^9]
So, x = 0.0532 m
An ammeter is always attached in series to get a voltage reading. * 1 point True False
A voltmeter records a reading of -35 dV at your point of reference. If you know that 200 cΩ is encountered by an electrical current at the point you are measuring, what is the amperage? Remember it is usually always best to convert to the same units!
A computer is reading data from a rotating CD-ROM, At a point that is 0.0280 m from the center of the disk, the centripetalacoeleration is 374 m/s. What is the centripetal acceleration at a point that is 0.0836 m from the center of the disc? units m/812 Number 125.3 the tolerance is +/-2%
e c Antibiotics Question 20 (1 point) antibiotics OcObtain another temperature reading
an older person needs a pair of reading glasses.Her near point is at 48 cm from her eyes and reading glasses are 2 cm from her eyes. The glasses should allow her to read 25 cm away. What are the object and image distances? what is the magnification of these lenses? What is the focal length of the pair of glasses? What is the optical power of the lens pair? What type of lenses (converging, diverging) does she need?
Reading glasses of what power are needed for a person whose near point is 120 cm, so that she can read a computer screen at 55 cm?Assume a lens-eye distance of 2.0 cm.
Reading glasses of what power are needed for a person whose near point is 50.0 cm, so that she can read clearly the print of a book located at 25.0 cm? Assume a lens-eye distance of 2.00 cm.
Reading glasses of what power are needed for a person whose near point is 115 cm , so that he can read a computer screen at 58 cm ? Assume a lens-eye distance of 2.0 cm . Express your answer using two significant figures.
1. Working with Numbers and Graphs Q1 Suppose the marginal costs of reading are constant at $6 per hour, while the marginal benefits of reading decline (over time) as more reading is performed. In particular, suppose the following table contains the marginal benefit associated with various levels of hours spent reading Time Spent Reading Marginal Benefits (Hours)(Dollars per hour) 10 16 40 Assume the marginal-benefit curve is a straight line through the two points described in the table on the...
Suppose the marginal costs of reading are constant at $6 per hour, while the marginal benefits of reading decline (over time) as more reading is performed. In particular, suppose the following table contains the marginal benefit associated with various levels of hours spent reading. Time Spent Reading (Hours) Marginal Benefits (Dollars per hour) Assume the marginal benefit curve is a straight line through the two points described in the table On the following graph, use the blue points (circle symbol)...