Question

In: Physics

6.6 (a) Estimate the terminal speed of a wooden sphere (density 0.870 g/cm3) falling through air,...

6.6

(a) Estimate the terminal speed of a wooden sphere (density 0.870 g/cm3) falling through air, if its radius is 7.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.)
m/s

(b) From what height would a freely falling object reach this speed in the absence of air resistance?
m

Solutions

Expert Solution


Related Solutions

(a) Estimate the terminal speed of a wooden sphere (density 0.870 g/cm3) falling through air, if...
(a) Estimate the terminal speed of a wooden sphere (density 0.870 g/cm3) falling through air, if its radius is 8.00 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) Incorrect: Your answer is incorrect. Your response is within 10% of the correct value. This may be due to roundoff error, or you could have a mistake in your calculation. Carry out all intermediate results to at least four-digit accuracy to minimize roundoff error. m/s (b)...
(a) Estimate the terminal speed of a wooden sphere (density 0.790 g/cm3) falling through air, if...
(a) Estimate the terminal speed of a wooden sphere (density 0.790 g/cm3) falling through air, if its radius is 7.50 cm and its drag coefficient is 0.500. (The density of air is 1.20 kg/m3.) [ ] m/s (b) From what height would a freely falling object reach this speed in the absence of air resistance?
1.453 moles of a metal with a density of 10.49 g / cm3 (STP) and a...
1.453 moles of a metal with a density of 10.49 g / cm3 (STP) and a temperature of 23.35oF, is placed in a calorimeter isolated from the environment that contains 87.35mL of pure ethanol (density 0.9988 g / mL) and that is at 50.50oF. a) Determine the equilibrium temperature of the system.
If you add a 1 cm3 (1 ml) cube of salt (density 2.16 g/cm3) to 10...
If you add a 1 cm3 (1 ml) cube of salt (density 2.16 g/cm3) to 10 ml of water (1 g/cm3) what is a reasonable total volume? If you add a 1 cm3 (1 ml) cube of salt (density 2.16 g/cm3) to 10 ml of water (1 g/cm3) what is a reasonable final density? If you add a 1 cm3 (1 ml) cube of salt (density 2.16 g/cm3) to 10 ml of water (1 g/cm3) what is a reasonable final...
The density of sodium is 0.971 g/cm3 and it has an atomic weight of 22.9897 g/mol....
The density of sodium is 0.971 g/cm3 and it has an atomic weight of 22.9897 g/mol. Each sodium atom contributes one valence electron to the metal, so the number of electrons per unit volume, N/V, is equal to the number of sodium atoms per unit volume.    a) Calculate the number density of atoms per unit volume, N/V.    b) Calculate the Fermi energy of sodium.    c) Calculate the Fermi temperature.   d) At room temperature (298 K), calculate the chemical potential.  ...
Calculate the density (in g/cm3) of an AX compound given that it has the rock salt...
Calculate the density (in g/cm3) of an AX compound given that it has the rock salt crystal structure and that the radii of the A and X ions are 0.137 and 0.241 nm, respectively. Assume atomic weights of 30.7 and 100.2 g/mol for the A and X elements, respectively.
The density of a certain metal is 3.594 g/cm3 and the metal atom radius is 217.3...
The density of a certain metal is 3.594 g/cm3 and the metal atom radius is 217.3 pm. If the metal crystallizes in a body-centered cubic structure, which choice is closest to the atomic mass? (a) 136.8 g/mol (b) 273.5 g/mol (c) 164.2 g/mol (d) 184.9 g/mol (e) 181.1 g/mol
Osmium is the densest of the naturally occurring elements with a density of 22.59 g/cm3. You...
Osmium is the densest of the naturally occurring elements with a density of 22.59 g/cm3. You are presented with a cube of what is claimed to be pure osmium, which measured 2.00 inches on a side. What weight in pounds would you expect for such a cube of pure osmium? 1 lb = 453.6 g; 1 in = 2.54 cm
A sample of concrete with a density of 2.35 g/cm3 has a hydrogen content of 0.0085...
A sample of concrete with a density of 2.35 g/cm3 has a hydrogen content of 0.0085 weight fraction. a) what is the atom density of hydrogen in the concrete? b) what is the atom density of hydrogen in water at room temperature? c) how do these numbers compare (comment)?
An experiment requires 40.3 of ethyl alcohol. If the density of ethyl alcohol is 0.790 g/(cm3),...
An experiment requires 40.3 of ethyl alcohol. If the density of ethyl alcohol is 0.790 g/(cm3), what is the mass of 40.3 mL of ethyl alcohol
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT