The "lead" in pencils is a graphite composition with a young's modulus of approximately 1.0 ✕ 109 n/m2. calculate the change in length (in mm) of the lead in an automatic pencil if you tap it straight into the pencil with a force of 4.8 n. the lead is 0.70 mm in diameter and 59 mm long. (enter the magnitude.)

Give your knowledge of these things in your paper, you will compare and contrast analog and digital signals to determine which is more reliable for encoding and transmitting information. you’ll compare these features: signal shape numerical values for signal measurements amount of data that can be transmitted energy requirements privacy and security (ability of the signal to be encoded in a secret code) clarity of signal in the space provided, write down what you already know about any of these features. if you’re not sure, write down questions you might have about the features.

Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?

Asynthetic fiber used in manufacturing carpet has tensile strength that is normally distributed with mean 75.5 psi and standard deviation 3.5 psi. how is the standard deviation of the sample mean changed when the sample size is increased from n equals 8 to n equals 47