Create a poster reminding your friends and classmates of simple ways they can get off the couch each day

Consider a cylindrical titanium wire 3.0 mm (0.12 in.) in diameter and 2.5 Ã 104 mm (1000 in.) long. calculate its elongation when a load of 500 n (112 lbf) is applied. assume that the deformation is totally elastic.

An isotope of Uranium, Z = 92 and A = 235, decays by emitting an alpha particle. Calculate the number of neutrons in the nucleus left behind after the radioactive decay.

A miler covers one mile in training at a 6 minute pace (4 laps on a 1/4 mile track). What is his speed in mph.

a value of pH 7.0 indicates A) a zero hydrogen-ion concentration B) the lowest hydrogen-ion concentration C) the highest hydrogen-ion concentration D) equal hydrogen and hydroxide-ion concentration

What are the two things we need in order to solve for wave speed?

Ali has less mass flying in a jet high above the earth than when she stands on the surface of the earth. True False

A passenger jet flies from one airport to another 1,333 miles away in 2.2 h. Find its average speed in the mks system of units.

A string is wound tightly around a fixed pulley whose radius is 5.0 cm. As the string is pulled, the pulley rotates without slipping. What is the angular speed of the pulley when the string has a linear speed of 5.0 m/s?

If an astronomical light source were moving toward us, then what would be observed? (a) a blue shift (b) a shift toward longer wavelengths (c) a shift toward lower frequencies (d) a sonic boom

How much work must you do to push a 12 kg block of steel across a steel table at a steady speed of 1.3 m/s for 7.6 s? the coefficient of kinetic friction for steel on steel is 0.60?