Physics, 23.07.2019 03:50 fmw812

Compare the surface area-to-volume ratios of the earth and venus.

Answers: 1

Show answers

Answers

Venus has a larger surface area to volume ratio than Earth. The actual ratios are 0.000495704 for Venus and 0.000470884 for Earth. This is an example of the cube/square law. As an object increases in size, it's volume increases as a function of the cube of the radius while the surface area increases as a function of the square of the radius. Take a look at the formula for the volume of a sphere and then the formula for the surface area of a sphere. volume = (4/3)pi * r^3 area = 4*pi*r^2 So let's apply these formulas to Earth and Venus Radius Earth = 6371 km Radius Venus = 6,052 km Right off the bat without doing any calculations, Venus will have a higher surface area to volume ratio than Earth. Let's confirm that. Earth volume = (4/3)pi * r^3 = (4/3)pi * (6371 km)^3 = 1.08321x10^12 km^3 Venus volume =(4/3)pi * r^3 = (4/3)pi * (6052 km)^3 = 9.28507x10^11 km^3 Earth surface = 4*pi*r^2 = 4*pi*(6371 km)^2 = 510064471.9 km^2 Venus surface = 4*pi*r^2 = 4*pi*(6052 km)^2 = 460264736.8 km^2 Earth surface area/volume ratio = 510064471.9 / 1.08321x10^12 = 0.000470884 Venus surface area/volume ratio = 460264736.8 / 9.28507x10^11 = 0.000495704

Answer from: Quest

I’m good with pshycology

Answer from: Quest

the design of a ski jumping suit involves a trade-off between giving the skiers lift to get higher jumps and ensuring the skier does not face a lot of drag before the jump itself. an expansive suit may to lift the skier higher, but at the same time, it will also increase the air resistance. higher air resistance as the skier goes down the slope limits the speed of the jump. a big suit also increases the risk of losing balance or control, especially if there's a strong gust of wind. while technologically enhanced suits a lot, clothing is not the only factor in a ski jumper’s success. gathering speed while skiing down the slope, ensuring good speed on the ramp, and maintaining good body posture and form in the air all contribute to a ski jumper's success.

Another question on Physics

Physics, 21.06.2019 19:30

Astone dropped into a well is heard to strike the water after 8seconds. find the depth of the well if the velocity of sound is 350m/s

Answers: 1

Answer

Physics, 22.06.2019 00:20

Consider the particle-in-a-box problem in 1d. a particle with mass m is confined to move freely between two hard walls situated at x = 0 and x = l. the potential energy function is given as (a) describe the boundary conditions that must be satisfied by the wavefunctions ψ(x) (such as energy eigenfunctions). (b) solve the schr¨odinger’s equation and by using the boundary conditions of part (a) find all energy eigenfunctions, ψn(x), and the corresponding energies, en. (c) what are the allowed values of the quantum number n above? how did you decide on that? (d) what is the de broglie wavelength for the ground state? (e) sketch a plot of the lowest 3 levels’ wavefunctions (ψn(x) vs x). don’t forget to mark the positions of the walls on the graphs. (f) in a transition between the energy levels above, which transition produces the longest wavelength λ for the emitted photon? what is the corresponding wavele

Answers: 1

Answer

Physics, 22.06.2019 03:30

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Answers: 3

Answer

Physics, 22.06.2019 06:30

Alead ball is dropped into a lake from a diving board 5m above the water . it hits the water with a certain velocity and then sink with constant velocity in bottom . it reaches the bottom 5 second after it is dropped if g= 10m/s2 . find depth of the lake and average velocity of the ball ?

Answers: 1

Answer

You know the right answer?

Compare the surface area-to-volume ratios of the earth and venus....

Questions