A human hair is about 30 μm in diameter. At what speed, in m/s, would a meter stick "shrink by a hair"?
A human hair is about 30 μm in diameter. At what speed, in m/s, would a...
A particular human hair has a Young's modulus of 3.18 × 109 N/m2 and a diameter of 152 μm. If a 268 g object is suspended by the single strand of hair that is originally 16.0 cm long, by how much A L hair will the hair stretch? If the same object were hung from an aluminum wire of the same dimensions as the hair, by how much Δ LAI would the aluminum stretch? If the strand of hair is...
A particular human hair has a Young's modulus of 3.54 × 10 9 N/m 2 and a diameter of 143 μm. If a 215 g object is suspended by the single strand of hair that is originally 19.0 cm long, by how much Δ L hair will the hair stretch? Δ L hair = m If the same object were hung from an aluminum wire of the same dimensions as the hair, by how much Δ L Al would the...
A particular human hair has a Young's modulus of 3.38×109 N/m2 and a diameter of 148 μm. If a 250 g object is suspended by the single strand of hair that is originally 20.0 cm long, by how much Δ? hair will the hair stretch? If the same object were hung from an aluminum wire of the same dimensions as the hair, by how much Δ?(Al) would the aluminum stretch? If the strand of hair is modeled as a spring,...
A particular human hair has a Young's modulus of 3.80 x 10 N/m² and a diameter of 150 um. If a 234 g object is suspended by the single strand of hair that is originally 15.0 cm long, by how much AL hair will the hair stretch? AL hair = m If the same object were hung from an aluminum wire of the same dimensions as the hair, by how much ALA would the aluminum stretch? ALAI = ALA =...
Particulate matter is emitted from a stack of 50 m. The atmospheric wind is 10 miles/hr. If the stack emits only PM o 120 μm in diameter with a density of 5 g/cm, what would be the downwind distance (in meter) these particles are likely to settle on the ground?
Particulate matter is emitted from a stack of 50 m. The atmospheric wind is 10 miles/hr. If the stack emits only PM o 120 μm in diameter with a density...
Human hair grows at about 0.5 inches per month. (a) What is this growth rate in nm/s? (b) Typical interatomic spacing in a molecule is ~0.1 nm. Approximately how many layers of atoms are added per day as a hair is growing?
If the de Broglie wavelength of an electron is 7.3 μm, what is the speed of the electron? a1.0 × 102 m/s b2.7 × 106 m/s c5.5 × 102 m/s d8.2 × 104 m/s
Nerve impulses in the human body travel at a speed of about 101 m/s. A 1.64 m tall man accidentally drops a hammer on his toe. How long does it take for the nerve impulse to travel from his toe to his brain? Express your answer in seconds.
pretty confused on how to solve this, if you could explain it
please
A particular human hair has a Young's modulus of 3.18 x 109 N/m2 and a diameter of 145 μm. If a 204 g object is suspended by the single strand of hair that is originally 19.5 cm long, by how much A L hair will the hair stretch? hair - If the same object were hung from an aluminum wire of the same dimensions as the hair,...
Bacteria vary somewhat in size, but a diameter of 1.3 μm is not unusual. What would be the surface area (in square millimeters) of such a bacterium, assuming that it is spherical? Express your answer using two significant figures.